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UNGLINGA 70 Lab Experiments Science Kits for Kids Educational Scientific Toys Birthday Gifts Idea for Girls Boys, Chemistry Set, Erupting Volcano, Fruit Circuits, STEM Projects Magic Activities

Science kit with 70 experiments

Science kit with lab coat

• VARIED SCIENCE KIT THAT INSPIRES - Kids will have hours of fun as they explore the multiple experiments and is great to share with family, friends, or classmates; Just like a real scientist in a lab! Encourages children to critically think and problem solves and will help sharpen their science and math skills.
• A TOTAL OF 70 EXPERIMENTS - Build and erupt a volcano, crystal growing,balloon rocket, fruit circuits and cause some awesome chemical reactions! Each experiment is easy to conduct and a whole lot of fun!
• EASY-TO-FOLLOW MANUAL - The experiment guide instructions with clear illustrations for each step, and fascinating insight into the chemical reactions. A detailed learning guide teaches the science at work in the experiments, allowing your child to develop a deep, lasting appreciation for a variety of science.
• S.T.E.M LEARN, EXPERIENCE, PLAY - Kids will learn the scientific process, important fundamentals of chemistry, and how to safely conduct experiments. That fosters a fundamental and healthy understanding of basic scientific concepts.
• HIGH-QUALITY EDUCATIONAL TOYS - The UNGLINGA SCIENCE series provides kids high-quality educational toys that are a whole lot of fun! All ingredients included are safe and child friendly. If your experience kit is anything questions, let us know so we can make it right for you.

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Product information

Product Dimensions	11 x 8.66 x 3.54 inches
Item Weight	2.33 pounds
ASIN	B09SYN24NT
Item model number	HZDZKH030
Manufacturer recommended age	8 years and up
Best Sellers Rank	#1,716 in Toys & Games ( ) #20 in
Customer Reviews	4.6 out of 5 stars
Manufacturer	unglinga

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Safety information.

Not suitable for children under 8 years. For use under adult supervision

From the brand

UNGLINGA SCIENCE KITS SERIES

The UNGLINGA STEM series provides kids with high-quality educational toys that are a lot of fun!

We strive to bring a variety of toys and entertaining games that encourage exploration through interactive experiments and activities that help make learning fun.

UNGLINGA Science Kits for Kids

Visit the Store

Gifts for Boys & Girls

Real life tools

This set's kid-safe science tools are sized just right for little hands! Plastic material is safe and durability.

Safety glasses

Protect your kids eyes all-round, a transparent and clear lens lets kids can have a good vision in any environment.

Experiements manual

Clearly written and illustrated manual will also guide kids to follow step-by-step learning excursion through each experiment.

To experience

• There are so many activities and experiments to try that they'll be busy for hours, exploring the fascinating world of chemistry.

Product Description

Smart S.T.E.M Concepts Hands-On Science Activities

• This phenomenal S.T.E.M kit gives kids the chance to experience the scientific process in a hands-on way, just like a real scientist!

FUN and LEARNING are Plentiful with Incredible Kit

• With top-quality tools that are made to look like those found in a real chemist’s lab, your child will enjoy hours of fun creating Floating Drawings, Magic PH Indicator, Artificial Snow, Rainbow Ferris Wheel and Homemade Bubble Water experiments with this kid's science kit!

For your little scientist!

Toys gifts for girls & boys..

Kids will have hours of fun as they explore the multiple experiments and is great to share with family, friends, or classmates.

UNGLINGA SCIENCE EXPERIMENTS KITS

	✔	✔	✔	✔	✔	✔	✔
	✔	✔	✔	✔	✔	✔	✔
	✔	✔	✔	✔	✔	✔	✔
	Fruit Circuits | PH test ...	S.T.E.M|Volcano|Dig....	Stones|Reaction| magic...	Dig|Glowing Worms...	Fizzy|Growing Peacock ...	Valcano | Gemstone...	Funny Ruler...
	✘	✘	✘	✘	✘	✘	✘

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Science Kit - Christmas Gift for 8 year old boy

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70 Ways to Learn Science: Too Good to Be True?

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Customer Review: Great beginner science for kids

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Customer reviews.

• 5 star 4 star 3 star 2 star 1 star 5 star 77% 13% 6% 2% 2% 77%
• 5 star 4 star 3 star 2 star 1 star 4 star 77% 13% 6% 2% 2% 13%
• 5 star 4 star 3 star 2 star 1 star 3 star 77% 13% 6% 2% 2% 6%
• 5 star 4 star 3 star 2 star 1 star 2 star 77% 13% 6% 2% 2% 2%
• 5 star 4 star 3 star 2 star 1 star 1 star 77% 13% 6% 2% 2% 2%

Customer Reviews, including Product Star Ratings help customers to learn more about the product and decide whether it is the right product for them.

To calculate the overall star rating and percentage breakdown by star, we don’t use a simple average. Instead, our system considers things like how recent a review is and if the reviewer bought the item on Amazon. It also analyzed reviews to verify trustworthiness.

Customers say

Customers like the quality, fun, and educational aspects of the science fundamentals kit. They mention that the activities are fun and interesting, and the tools are nice and fun to use. They also appreciate the value for money, saying that it comes with a lot for the price. Customers are also satisfied with color, and content.

AI-generated from the text of customer reviews

Customers are satisfied with the quality of the science fundamentals kit. They mention that the materials are mostly of high quality, but some experiments require common household items. They also say it's a really nice little kit, with good supplies and a well-presented book with all experiments.

"...All the materials are very well made , the instructions are easy to follow, and they feel like real scientists!" Read more

"This product is very nice , comes with a lot of different experiments you can do and easy to do with kids" Read more

"...The quality of materials is top-notch , ensuring safety and durability...." Read more

"...Most of the actual pieces are good quality ." Read more

Customers find the activities in the science fundamentals kit fun and interesting. They also say the experiments are fun and exciting to do with their children. Customers also say it's the perfect blend of education and entertainment, cultivating a love for science in an engaging way. They mention that the kit provides hours of engaging and informative fun for kids.

"...They both love this! They have been so entertained by every experiment we have done so far...." Read more

"...It's the perfect blend of education and entertainment , cultivating a love for science in an engaging way...." Read more

"...The tools received were nice and fun to use ." Read more

"...Science Kit is a fantastic educational tool that provides hours of engaging and informative fun for kids...." Read more

Customers find the UNGLINGA Science Kit a fantastic educational tool that provides hours of fun for little scientists. They also say it's a good intro to science, cultivating a love for science in an engaging way. Customers also say the kit is a great way to spark some science conversations with their kids.

"...if you are looking for a reasonably priced gift with educational content , this one is a great option." Read more

"...It's the perfect blend of education and entertainment, cultivating a love for science in an engaging way...." Read more

" Good for kids " Read more

"...Overall, I think this is a great kit for introducing kids to science ." Read more

Customers find the instructions fairly easy to understand. They also say the experiments are relatively easy with adult supervision. Customers also mention that the directions are clear and the explanations are short for younger kids.

"...All the materials are very well made, the instructions are easy to follow , and they feel like real scientists!" Read more

"...nice, comes with a lot of different experiments you can do and easy to do with kids " Read more

"My son is 7 and he loves this kit.The instructions are often poorly written , and some of the experiments don't work well...." Read more

"...she loved it and learned a lot. the instructions are written clearly , and easy to follow. every experiment has scientific rationale for the results...." Read more

Customers like the value of the science fundamentals kit. They say the lab coat alone is worth the price, it comes with a lot for the price and is a great gift for a good price.

"...if you are looking for a reasonably priced gift with educational content, this one is a great option." Read more

"...Most importantly, he's learning to love science and it's a very inexpensive kit ! I'll also be able to reuse most of it when my daughter is older...." Read more

"You get what you pay for. It is cheap , but so are the contents. My kids enjoy it and that's what counts...." Read more

"...This is a great value for the money ! And I have bought this as birthday gifts twice now.You will not regret buying this :)" Read more

Customers find the color of the science fundamentals kit cute, and say it's an excellent gift for young aspiring scientists. They also say the lab coat and ID are adorable and nicely made.

"this is the perfect gift for 7 year and older kids. my daughter loved this gift that i got her for her 7th birthday. she loved it and learned a lot...." Read more

" Great gift for a 7 year old as it gives them a lot of experiments to do...." Read more

"...Overall, it's an excellent gift for young aspiring scientists , despite the need for occasional outside materials." Read more

" Very good gift !" Read more

Customers find the content of the science fundamentals kit interesting and fun. They appreciate the booklet with a bunch of experiments to try. Customers also say it's a great science kit with different projects.

"This product is very nice, comes with a lot of different experiments you can do and easy to do with kids" Read more

"...The kit includes a diverse range of experiments , fostering curiosity and critical thinking...." Read more

"...The tools received were nice and fun to use." Read more

" Great activity kit if parent or grandparent will participateFor young kids 6 to 9 I fee;" Read more

Customers are mixed about the completeness of the science fundamentals kit. Some mention it comes with almost everything they need, while others say it's missing important items like the beaker and measuring spoons.

"...The package includes almost everything you need for all of the experiments...." Read more

"...It is very well organized and comes with most everything you need ...." Read more

"It came missing the stirring rod and white candle hopefully I’ll be able to improvise it seems like a good kit overall" Read more

"I love this so much and so do my kids. It comes with a booklet and a lot of supplies can wok on different project for days made for kids" Read more

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Want to see a cool trick? Make a tiny battery with these 3 household items

Emily Kwong

Rebecca Ramirez

Madeline K. Sofia

Electrical circuit can be created with lemons to power a small light source. A chemical reaction between the copper and zinc plates and the citric acid produces a small current, thus powering a light bulb. Andriy Onufriyenko/Getty Images hide caption

Electrical circuit can be created with lemons to power a small light source. A chemical reaction between the copper and zinc plates and the citric acid produces a small current, thus powering a light bulb.

We're going "Back to School" today, revisiting a classic at-home experiment that turns lemons into batteries — powerful enough to turn on a clock or a small lightbulb. But how does the science driving the "lemon battery" show up in those household batteries we use daily?

We get into just that today with environmental engineer Jenelle Fortunato about the fundamentals of electric currents and the inner workings of batteries.

You can build your very own lemon battery using Science U's design here , written by Fortunato and Christopher Gorski of Penn State College of Engineering.

A reminder: Do NOT play with household batteries. Be safe out there, scientists!

Want us to cover more science basics? Email us your ideas at [email protected] — we might feature them on a future episode!

Listen to every episode of Short Wave sponsor-free and support our work at NPR by signing up for Short Wave+ at plus.npr.org/shortwave .

Listen to Short Wave on Spotify , Apple Podcasts and Google Podcasts .

This episode was originally produced by Rebecca Ramirez and edited by Viet Le. The encore version was produced and edited by Rebecca Ramirez.

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Journal of Materials Chemistry A

A green and ultrafast one-pot mechanochemical approach for efficient biocatalyst encapsulation in mofs: insights from experiments and computation †.

* Corresponding authors

a Department of Chemistry, National Central University, Taoyuan 32001, Taiwan E-mail: [email protected]

b Department of Chemical and Materials Engineering, National Central University, Taoyuan 32001, Taiwan

c Department of Chemistry, Fu Jen Catholic University, New Taipei City, Taiwan E-mail: [email protected]

d Department of Electrical Engineering and Computer Sciences, University of California at Berkeley, California 94720, USA

Mechanochemistry, a sustainable and efficient approach, is now used to encapsulate biocatalysts like enzymes within MOFs (enzyme@MOFs). Yet, achieving ultrafast, eco-friendly, and high-yield synthesis of enzyme@MOFs, with potential for mitigating biocatalyst and industrial MOF production improvement, remains challenging. In this study, we illustrated the enzyme one-pot mechanical encapsulation within zeolitic imidazolate framework-90 (ZIF-90), a MOF subfamily. A substantial yield ( ca. 80%) was achieved in only 10 s at 8 Hz or lower frequencies, assisted by a small amount (∼100 μl) of Tris buffer solution. The encapsulated enzyme catalase (CAT), responsible for decomposing hydrogen peroxide, maintains its bioactivity after mechanical treatment. Additionally, the enzyme gains protection from digestion ( e.g. , proteinase K) due to the size-sheltering effect. Simulations of energy transfer and experimental findings reveal that a buffer solution containing primary amines affects linker deprotonation, thereby facilitating the rapid formation of a well-defined 3D structure of enzyme@ZIF-90 crystals during ultrafast milling reactions. We further demonstrated our mechanical approach by encapsulating bovine serum albumin and Escherichia coli in ZIF-90, highlighting the versatility of this method for crafting MOF biocomposites across diverse industrial applications.

• This article is part of the themed collection: Functional Framework Materials

Supplementary files

• Supplementary information PDF (3110K)

Article information

Download citation, permissions.

A green and ultrafast one-pot mechanochemical approach for efficient biocatalyst encapsulation in MOFs: insights from experiments and computation

P. K. Lam, T. H. Vo, J. Chen, S. Lin, C. Kuo, J. Liao, K. Chen, S. Huang, D. Li, Y. Chang, H. Chen, H. Hsieh, Y. Hsu, H. Tsao, H. Yang and F. Shieh, J. Mater. Chem. A , 2023,  11 , 24678 DOI: 10.1039/D3TA05228A

To request permission to reproduce material from this article, please go to the Copyright Clearance Center request page .

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How gold nuggets form is a mystery. Could electricity from earthquakes hold the answer?

ABC Science

Topic: Geology

Gold nuggets are sought after by many but just how they form in the first place has been subject to many geological debates. ( ABC Goldfields-Esperance: Jarrod Lucas )

Findings suggest gold nuggets can form in quartz veins as a result of electricity produced by the pressure of earthquakes.

The gold is carried in super-hot liquids from the Earth's core to its crust, where the electricity causes it to be deposited onto the quartz.

Deposited gold then acts like a lightning rod, attracting more gold with subsequent earthquakes.

Most of the world's great gold deposits can be found in underground veins of quartz.

But how exactly concentrated nuggets of gold may have formed here has been a mystery and source of debate among geologists.

Sometimes it seems like nuggets float in the middle of a quartz vein without any apparent chemical or physical explanation as to why they had accumulated there, says Chris Voisey, a geologist at Monash University.

Much of the world's gold deposits are found in rocky veins of quartz, like the white layer in the image above. ( Flickr: James St John , Main vein , CC BY 2.0 )

Now, research by Dr Voisey and his colleagues suggests the formation of these nuggets may be due to electricity generated by the pressure of earthquakes — a phenomenon known as piezoelectricity.

Their experiments, published today in Nature Geoscience , showed seismic activity led to an accumulation of gold particles in quartz.

"We found that once gold was on the quartz's surface, it would actually become the the main focus for further gold to deposit," Dr Voisey said.

How does piezoelectricity work?

Physical stress on a solid material produces an electric voltage.

Quartz, which is made up of the elements silicon and oxygen, is the most abundant piezoelectric mineral on the planet.

Tools like barbecue lighters contain quartz crystals that generate a high voltage spark when pressure is applied, for example.

Gold which has deposited in a vein of quartz in a hydrothermal setting. ( Flickr: James St John , Gold-quartz hydrothermal vein , CC BY 2.0 )

Dr Voisey was intrigued by the fact that so much of the world's gold happened to have accumulated in quartz.

"It all kind of sounds a bit too convenient that one of the only abundant piezoelectric minerals on Earth [quartz] is also the thing that hosts large gold nuggets," he said.

To explore the relationship between gold and quartz Dr Voisey and his colleagues set up an experiment to replicate what they thought was happening deep underground.

The experiment

Most of the world's gold is believed to in the planetary core, where there is enough of the metal to gild Earth's surface in a layer 0.5m thick.

Over billions of years some of this gold has made it closer to the surface, catching a ride in super-hot water-rich fluids, which moved through fractures and cracks to the rocky outer crust of the planet.

Until now, scientists thought gold precipitated out of the fluids and accumulated as it cooled or underwent a chemical change.

But Dr Voisey and his colleagues were not convinced by that argument.

One problem is that quartz is chemically inert, meaning it doesn't react with other substances, Dr Voisey said.

His team wanted to test a hypothesis that piezoelectricity generated during repeated earthquakes and seismic activity over billions of year may be at play in how the gold could come together in one place as a nugget.

Gold-quartz specimens like the one named after Bernhardt Otto Holtermann in 1872 at Hill End, New South Wales, may have formed deep underground. ( State Library of New South Wales: American and Australasian Photographic Company )

To replicate what may be happening deep below the surface they took six slabs of quartz crystals that were suspended into two different solutions containing gold.

The solutions were similar in composition to what would be found in super-hot fluids underground.

One solution had 75 parts per million of dissolved gold while the other had 95 ppm of gold nanoparticles, known as colloidal gold.

They shook the quartz slabs with a motor at a frequency of 20 hertz to replicate seismic waves. 

Victoria has been home to some of the largest complete nuggets ever found in the world. ( State Library of Victoria: J Richardson/Australian Mining Standard )

The gold started to deposit onto the quartz in both solutions.

But as the experiment continued Dr Voisey saw something else start to happen.

Instead of new grains attaching elsewhere on the quartz, it was attracted to, and accumulated on, the previously deposited gold.

"Once gold does stick to the quartz surface, it becomes like a like a lightning rod for further reactions," Dr Voisey said.

Scanning electron microscope image of gold [red] deposited onto quartz [yellow and green] via piezoelectric reactions during experiments. ( Supplied: Chris Voisey )

Over time the process could explain how large gold nuggets formed as more and more particles accumulate, according to Dr Voisey.

Findings could be useful for exploration

Rob Hough, mineral resources director at CSIRO, which was involved in the study, said the research established there was some sort of electric force involved in gold accumulation.

"These things are super-useful, ultimately, to help the industry understand how to explore more efficiently," he said.

Jim and Jimmy Larcombe with the golden eagle nugget found at Larkinville, Western Australia, in 1931. ( State Library of Western Australia: Illustrations Ltd )

University of Otago emeritus professor of geology Dave Craw, who was not involved in the study, has mixed views on the study.

He said the research provided a new mechanism for understanding gold deposition in quartz veins.

"Earthquakes are ubiquitous in orogenic gold-forming environments, and this novel mechanism is a good one to explain the link between gold and quartz in a lot of these deposits," Dr Craw said.

"I especially like their suggestion that this mechanism can form networks of gold in veins. 

"I have seen networks like that with gold along microfractures, and this is an entirely plausible process for making that happen."

But, Dr Craw said, whether this process could actually lead to the formation of large nuggets was another issue.

"The experiments only produced very small particles of gold, and they haven't demonstrated this could scale up to make large nuggets, although I suspect they could be right for some situations," he said.

Monash University geologist Dr Chris Voisey ran experiments exploring the relationship between gold and quartz with piezoelectricity. ( Supplied: Chris Voisey )

Dr Voisey is still excited to see where the research may go.

While new insights into gold formation can help exploration and mining geologists, he also hopes the finding can give insights useful for chemical engineering.

"Something I think would be interesting is if someone used piezoelectricity for the mineral processing of the gold ore," he said. 

"Processing gold ore right now can be fairly expensive ... I would like to see if this research would sort of help clean that up or even just reduce the cost."

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Vanna white worried she wouldn't have chemistry with ryan seacrest, vanna white worried i wouldn't have chemistry w/ ryan ... so used to pat sajak.

Vanna White had some fair fears going into her new partnership with Ryan Seacrest for "Wheel of Fortune" ... saying she worried the two wouldn't click.

The longtime television host discussed working with Seacrest during an interview with CBS Sunday Mornings ... explaining that even though she's known Ryan about 20 years, she didn't know if they'd be compatible onstage.

When asked if she worried about their chemistry, Vanna admits she didn't know what to expect because she'd partnered with Pat Sajak for so long ... and, she wondered if they'd have the same natural rapport.

Despite her initial fears, Vanna says Ryan's doing a great job in the role ... a huge relief to her, ya gotta imagine.

Of course, Ryan bid Sajak farewell before one of his last episodes in June ... writing a loving tribute to the longtime host of the show in applauding him for all his hard work and wishing him the best in retirement.

Meanwhile, Vanna had her own contract dispute last summer, putting her future with the show up in the air. Ultimately, the two sides came to a deal ... and, she's staying for at least one more season.

Seacrest's first televised episode as host of the show comes out Monday, September 9 ... and, you can be sure his chemistry with Vanna will be on full display.

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30 of Our Favorite Halloween Science Experiments

From exploding Peeps to dancing Gummy Bears!

Halloween is the perfect occasion to try some spooky, creepy, candy-centered Halloween science experiments! Here, we’ve rounded up 30 hands-on Halloween science experiments that explore concepts such as the scientific method, osmosis, exothermic reactions, and more.

You’ll only need simple supplies for most of these Halloween science experiments, so any teacher or family can head out to learn about chemistry, biology, physics, and more. To make it even easier to find the right outdoor science activities, we’ve rated each of our Halloween science experiments for difficulty:

• Easy: Simple, short activities you can do with little or no prep needed.
• Medium: These activities take a little longer or require a few extra supplies but are still fairly simple.
• Advanced: Activities that require more unusual supplies or complex skills.

30 Frightening Halloween Science Experiments

1. Brew up your own slime

Chances are good your students already love making and playing with slime. Turn the fun into an experiment by changing the ingredients to create slime with a variety of properties—from magnetic to glow-in-the-dark!

(Difficulty: Medium)

Try it: How to Make Slime

2. Experiment with this haunted Halloween hand melt

This fun activity will teach your students about the effect of salt on frozen water. They will make observations as the creepy hands melt and colorful Halloween toys emerge from the slush.

(Difficulty: Easy)

Try it: Haunted Halloween Hand Melt

3. Build a spooky hand

Using paper, straws, yarn and tape, create a moveable hand that replicates the movement of a human hand. Add a spooky touch by making the tips of the fingers pointy.

(Difficulty: Hard)

4. Test sinking & floating

Determine if a pumpkin sinks or floats in water by conducting an experiment. Test other elements of the pumpkin separately such as the stem, seeds and pulp.

Try it: Pumpkin Experiment

5. Brew up some candy potions

Let your little scientists loose as they play Mad Scientist … mixing, dumping, shaking, pouring, and experimenting to create their own magic potions from Halloween candy.

Try it: Candy Potions

6. Monitor a decomposing pumpkin

Decomposition, or rotting, is the process by which organic substances are broken down after death. Eventually, decomposition breaks organic matter down so that it becomes part of the soil again. And what better tool for this lesson than an old Jack-O-Lantern?

Try it: Pumpkin Decomposition Experiment

7. Code robots to create a Jack-O-Lantern

Print different pictures of Jack-o-Lantern faces individually on cards. Code a moveable robot to collect pieces that will complete the Jack-o-Lantern face.

Try it: Jack-O-Lantern Robot

8. Explore the math inside a candy bar

By using the Scientific Process, determine the density, volume, and mass inside different candy bars.

(Difficulty: Advanced)

Try it: Candy Bar Density Lab

9. Launch a flying Bat

Create a paper tube that fits around a straw and close off one of the ends. Draw or print out a bat template and attach to the paper tube. Blow through the straw and watch the bat fly.

Try it: Flying Bat Straw Rockets

10. Create an exploding Ghost Peeps geyser.

Exploding? Say no more! Your students will be enthralled as they watch ghost-shaped Peeps transform when they’re placed in the microwave.

Try it: Exploding Peep Geysers

11. Remove the “M” from M&Ms

Observe how M & M’s have different chemical structures that make the colors dissolve in water, but the letters stay intact.

Try it: Floating M M&M Candy Science Experiment

12. Test candy acidity 

A simple experiment to test whether candy has acid in it. All you need are sour Skittles, water, and baking soda. If the candy has acid, the mixture will bubble and fizz when the baking soda is added.

Try it: Candy pH Science Activity

13. Make your own candy vending machine 

There are a lot of variations of this project on YouTube from Hack Room, but it’s sure to challenge students’ engineering and planning skills.

14. Dance with gummy worms

This simple activity is perfect for little scientists who want to see creatures come to life before their eyes.

Try it: Dancing Frankenworms Kids’ Science Experiment

15. Make an oozing monster

Create a monster face on the outside of a plastic water bottle. Mix together glue, Borax, baking soda, vinegar and food coloring and add to the bottle. Watch how the foaming mixture leaks out of the monster’s head.

Try it: Oozing Monster Heads

16. Inflate pumpkin balloons 

Using a permanent maker, draw a face on an orange balloon. Fill the balloon with baking soda and attach to a water bottle filled with vinegar. Watch the pumpkin grow bigger in size!

17. Instigate a fizzy eruption

This experiment is a crowd-pleasing classic! Your students will love creating geysers from Diet Coke and Mentos as they learn about chemical reactions. Definitely an outdoor activity!

18. Supersize some gummy bears

Little ones will love this Alice in Wonderland style experiment. Using water, salt, and gummy bears, your students will learn about the process of osmosis.

Try it: Growing Gummy Bear Science

19. Play magician with disappearing candies!

What makes these candies dissolve the fastest—and why? Your students will get a taste of the scientific method as they experiment with different liquids and leftover Halloween candy.

Try it: Dissolving Peeps

20. Wanna know what’s really in candy?

Who knew candy had more than just sugar in it? This experiment using Starbursts and heat is eye-opening.

Try it: Candy Oil Test

21. Make a slimy egg

Observe what happens to an egg after it’s been sitting in vinegar for a long amount of time. After losing its shell, the egg will transform into a consistency like an eyeball! Check out this video and experiment we put together here .

22. Build a haunted house

Using recycled materials and a simple circuit, build a haunted house that lights up from the inside.

Try it: Spooky Circuits

23. Make a vanishing ghost

Gather packing peanuts and use a permanent marker to draw ghost faces. Grab a bowl of water and watch the ghost disappear right before your eyes!

Try it: Amazing Vanishing Ghosts

24. Craft a skeleton

Using Q-tips, scissors and glue, craft a model of a skeleton. You can position your skeleton in a fun pose!

Try it: Q-Tip Skeleton Halloween Craft

25. Create a ghost sound

On a white balloon, draw a ghost face with a permanent marker. Insert a small metal hex nut before blowing up the balloon and tying off. When the balloon is swirled around, the hex nut will spin around on the inside creating a spooky sound.

Try it: Spooky Ghost Sounds STEM Activity

26. Build an edible haunted house

Who says a haunted house can’t be tasty? Using candy, graham crackers and frosting, build a haunted house that’s actually delicious! 

Try it: Haunted Halloween Gingerbread House

27. Observe a melting pumpkin

Using orange Skittles, create an outline of a pumpkin in a plate. Slowly pour warm water on top and observe the colors melt into the liquid.

(Difficulty: Easy) 

Try it: Pumpkin Skittles Experiment

28. Use static electricity to fly ghosts

Cut out tissue paper ghosts and draw faces. Rub a balloon on your hair to create static electricity, then float on top of the ghosts to create them to fly.

Try it: Static Electricity Ghosts

29. Light up a pool noodle pumpkin

Carefully cut out a face design in an orange pool noodle. Then, create a play doh circuit that will light up the pumpkin from the inside.

Try it: Halloween Pumpkin Squishy Circuits

30. Make the spider go up the web

Attach a spider ring to a pencil using yarn. Theb, build with LEGO bricks a device that can hold the pencil and have the spider move up the web by rolling the pencil.

Try it: Spider Pulleys STEM Activity

For more Halloween fun like these Halloween science experiments, check out our frightfully fun Halloween activities, crafts and games for the classroom .

Plus, if you loved these halloween science experiments, check out our free halloween writing paper plus 20 spooky writing prompts ., you might also like.

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Halloween chemistry

Cackle with delight over these spooktacular Halloween-themed experiments and activities

Magical experiments and demonstrations

Teaching chemical changes (at Halloween)

2021-09-09T05:56:00+01:00 By Kirsty Patterson

Turn your younger students into wizards at chemistry with these simple practical ideas

Practical potions microscale | 11–14 years

2021-09-13T16:11:00+01:00 By Kirsty Patterson

Observe chemical changes in this microscale experiment with a spooky twist.

The ‘Old Nassau’ or Halloween clock reaction

2015-07-01T18:22:00+01:00 In association with Nuffield Foundation

Illustrate dramatic colour changes as a result of redox and precipitation reactions in this vivid demonstration. Includes kit list and safety instructions.

Demonstrations from Exhibition Chemistry

The genie in the bottle

Demonstrating the catalytic decomposition of hydrogen peroxide

Dancing flames

An experiment with an eerie green flame which really provides a wow factor

Oscillating magic?

Wow them with a colour change reaction

Magic beakers

Declan Fleming shows you how to capture your students’ imaginations with spectacular demonstrations

Costumes, creepy crawlies and corrosives

Clue up on the chemistry behind these spooky subjects

What are Halloween costume masks made from?

Find out about the creative chemistry behind costume masks

Minibeasts with chemical superpowers

Discover how insect and arachnid defence mechanisms are being used for new medicines and technologies

How do fireflies produce light?

Find out how fireflies and other creatures use bioluminescence

What’s the strongest acid in the world?

Delve into the highly corrosive world of superacids

Blood, slime and food

Try these investigations involving some Halloween favourites

Decomposing hydrogen peroxide with blood

Mixing hydrogen peroxide with blood to produce a foam explosive

The chemistry of iron | 16–18 years

Practice questions give context to transition metal chemistry and equilibria using the examples of haemoglobin and iron 

PVA polymer slime

In association with Nuffield Foundation

In this fun class experiment student will make slime by adding borax solution to PVA. Includes kit list and safety instructions.

Quicksand investigation | 14–16 years

Discover the properties of non-Newtonian fluids and how these could help you escape from quicksand

Baking investigation | 11–14 years

Chemistry stinks - olfactory indicators experiment

Chromatography of sweets | 11–14 years

In association with Nuffield Foundation , By Holly Walsh and Sandrine Bouchelkia

Sherbet and popping candy: edible experiments

Candy coatings: edible experiments

Apple browning

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Learning chemistry doesn’t have to be scary. Well, except on Halloween! Find creepy chemistry ideas using dry ice, glow-in-the-dark pumpkins, and more.

• Dressing for (Chemical Success) from ACS Chemical Education Today Students dress in costume to represent an element from the periodic table.
• Make Glow-in-the-Dark Jell-O from Mom Advice
• Add glowing Jell-O to your party menu with this recipe.
• Laundry Detergent Glowing Skull from ThoughtCo Create a collection of glowing skull Halloween decorations.
• Static Powered Dancing Ghost from Science Bob This ghost wants to dance but needs your help—your balloon’s help, that is.
• Halloween Mystery Box Game from The Spruce Feels like… brains! Try this creepy but fun way to hone your observational skills, without peeking in the box.Watch others cook, taste, and smell in these videos. Then, connect chemistry to what you see.
• Halloween Chemistry Demonstrations from C&EN Halloween twists on several common chemistry demonstrations make for spooky excitement, including the puking pumpkin, ectoplasmic drool, and the dark-side pumpkin.
• Genie in a Bottle from Flinn Scientific When sodium iodide is dropped into a flask containing 30% hydrogen peroxide, a “magical” genie appears in the form of water vapor and oxygen.
• Using Dry Ice to make a Spoon Sing (Scream!) from ThoughtCo Listen carefully for the sounds of Halloween screams.
• Amazing Bag of Blood from Kitchen Pantry Scientist Stab a bag of “blood” without spilling a single drop in this easy Halloween demo.
• Frankenstein’s Hand from Mom it Forward Frankenstein’s hand comes alive in this acid–base reaction.Watch others cook, taste, and smell in these videos. Then, connect chemistry to what you see.
• Math & Science Pumpkins from Oregon Agricultural in the Classroom Foundation Do pumpkins sink or float? Students engage in several lab activities using pumpkins.
• Spooky Diving Ghost from STEAMsational Put the pressure on this ghost to make it sink, then float up to the top once again.
• Fluffy Zombie Brain Slime from Little Bins, Little Hands Create this extra fluffy slime recipe in a brain-shaped (or Halloween themed) mold.
• Crystal Pumpkin Suspension Science from Little Bins, Little Hands Students can grow borax crystal pumpkins overnight!
• Science Project Runway, Farming Fashion, Chemistry Costumes from C&EN Can’t think of a thing to wear to the Halloween party? Try one of these creative (and cheap!) chemistry-themed costumes.
• Periodic Graphics: The Chemistry of Pumpkins from C&EN Pumpkins take front and center during this holiday. Learn about their chemistry before you carve.
• Carving Nanopumpkins, Slicing Fingers, Cutting Water from C&EN These aren’t the perfect size to display on your front porch, but they’re some cool science.
• How to Keep Your Jack O’Lantern Looking Dapper Longer , from Smithsonian Magazine Looking for ideas on how to keep your cut pumpkin pristine? This pumpkin expert has some suggestions.
• Halloween Treats, Support your Favorite Element from C&EN Both pumpkins and chocolate have antimicrobial and antioxidant properties—which would you rather eat first?
• The Science Behind Halloween Candy from Science Meets Food Learn how long you can expect all that candy to last.
• Halloween Special: The Chemistry of Blood from Compound Interest What makes your blood, blood? This chemistry really gets under your skin.
• Molecule of the Week Archive: Putrescine and Cadaverine from ACS Learn more about the foul smelling odors associated with the dead.

The Chemistry of Hollywood Fake Blood

ACS Reactions

A historical and chemical overview of fake blood—and learn how to make your own.

How Much Candy Would Kill You?

Learn about the LD50 related to some sweet, sugary science.

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25 Easy Halloween Science Experiments for Kids

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Parents and teachers, here are 25+ easy Halloween science experiments for kids! These quick and easy experiments will help you use the holiday as a fun opportunity to explore some of our favorite topics in science. These experiments explore things like potential and kinetic energy, what happens when you mix vinegar and baking soda, or how the ancient Egyptians made mummies.

These Halloween science activities are great for the classroom or at home and are sure to get any ghoul excited! From creating exploding ghosts to making fake blood slime, these spooky experiments will have you ready to celebrate the Halloween season in style. Happy experimenting!

Table of contents

Dissolving candy pumpkins, halloween candy sink or float, halloween pumpkin skittles experiment, candy catapult, halloween jello worms, pumpkin life cycle experiment, oozing pumpkins, pumpkin spinning tops, pumpkin cup baking soda vinegar experiment, fizzing pumpkins experiment, exploding baggie ghosts, monster eyes egg science, disappearing skulls experiment, grow your own monster, apple mummies, diving ghost experiment, witches brew science, black glitter slime, halloween shooters, spooky ghost sounds, oozing blood slime, fizzing ghosts experiment, halloween thaumatropes, monster lab, brain in a bag surgery experiment, halloween experiments with candy.

These candy experiments are perfect for October when there’s candy a-plenty. It’s a great way to use leftover candy after the holiday, too.

This simple experiment only takes two minutes to set up, but kids will get a kick out of watching those sweet, sugary candy pumpkins dissolve in different liquids, such as milk, vinegar, oil, and water. You could also try this idea with candy corn!

Does your favorite Halloween candy sink or float? Try it and see! Use the record sheet to record your predictions and observations. Try it with wrapped and unwrapped candies. This is a fun way for kids to learn about the scientific method (and enjoy a little snack, too).

You may have tried the warm water and Skittles experiment before, but this one has a lovely pumpkin-themed twist. Use green and orange Skittles to outline a pumpkin shape, add the warm water, and watch the colors bleed to make a beautiful pumpkin.

Build a candy catapult to launch some of your Halloween candy into the air! Making catapults is always a hit with kids. It’s a captivating way to learn about potential energy and kinetic energy.

Try the Jello straw challenge to make gross, creepy (but tasty!) Halloween Jello worms. They’re perfect for a Halloween party. Kids will love this Halloween STEM activity for October.

Pumpkin Science Experiments

Use any of these fun pumpkin projects for a lesson on pumpkins. The life cycle experiment is especially good, but requires a lot of patience and time. Fizzing pumpkins are always a hit!

Watch a pumpkin decompose and then regrow with this fascinating Halloween experiment. This life cycle of a pumpkin experiement is a long-term project that will teach kids a lot about plant decomposition and how new seedlings can form from the seeds in the soil enriched by decomposed material.

Carve a pumpkin together and then make it ooze with a colorful baking soda and vinegar solution with added dish soap and food coloring to make it extra fizzy and colorful. Watching the fizzy bubbles ooze out of the pumpkin’s eyes, nose, and mouth is such fun! It’s a neat take on the usual pumpkin volcano experiment.

Have you ever seen a jack-o-lantern breakdance? Now you can with these cute spinning pumpkins made with wood spinning tops. Try to get your pumpkins to spin and twirl on the stem—it’ll look like they’re dancing!

Don’t have real pumpkins on hand? No worries. Make your own out of orange paper cups. Then, add those to your tray for a classic baking soda and vinegar experiment that comes pouring out of the eyes and mouths of your paper cup pumpkins.

Here’s another variation on fizzing pumpkins, this time using pumpkins made out of baking soda. You’ll need a silicone mold to make them, but that will come in handy for making other Halloween goodies, too.

Fun Halloween Science for Kids

Trick or treating is fun, but your kids will forget all about that candy (at least for a while) with these jaw-dropping Halloween experiments and chemical reactions. October is the perfect time to get future “mad scientists” excited about chemistry, physics, and more!

This is one of our favorite Halloween science activities on the list. We’ve tried different variations on the exploding baggie trick, but drawing a ghost on the bag makes it spooky and fun! Watch the ghost get bigger and bigger until—KABOOM!—it explodes.

Have you ever tried the rubber egg experiment? That’s what this is, but in keeping with the holiday theme by making it a monster eyes version. Make black and orange “rubber” eggs that look like monster eyes while learning all about the science of osmosis.

Grab some packing peanuts for this spooky science project! You’ll decorate the packing peanuts like skulls, add them to water, and see what happens. Are they biodegradable or not? Another fun variation is to try dissolving them in different liquids.

Dr. Frankenstein isn’t the only person who can create monsters. Now you can make your own with this fun balloon experiment. Draw the monster’s face, place it over the bottle of vinegar/baking soda solution, and watch him grow and grow. It’s alive! Well, not really, but it sure is fun pretending!

Learn about mummification with this neat science project. You’ll compare and contrast various desiccants (materials that dry things out) to see which is most effective.

This ghost in a bottle experiment is sure to get lots of ooohs and ahhhhs from the kids. It’s a cartesian diver experiment with a festive Halloween twist. Watch the dancing ghost as it moves up and down in the bottle or jar, seemingly on its own.

Brew up a fun potion with this witch’s brew experiment. Find out which potions fizz the best using baking soda, citric acid, vinegar, dish soap, and water to create different combinations. A little bit of color and some candy eyeballs make the mixtures look spookier.

Slime may make you crazy, but kids can learn a lot about chemistry and physics by making slime! This black, glittery version is perfect for Halloween. Add some skulls or spiders to the mix to make it extra creepy.

Work in a little Halloween physics with these cute bat, Frankentstein, and ghost rockets made out of paper, straws, and tape. Lots of factors determine how well your chracters fly, such as their shape, weight, etc. Lighter and more aerodynamic characters should fly better. Here’s a little more  science behind straw rockets .

Have some Halloween fun with physics. Use hex nuts and balloons to make balloon ghosts that emit a spooky sound. Your balloon may even pop due to heat and friction from the nut, but that just makes it all the more interesting!

Here’s another  Halloween slime recipe  that’s super spooky! Pair it with a large, empty syringe and watch it ooze out the tip. Creepy, right?

Make Halloween moon dough and turn it into a fizzing ghost experiment with a bit of vinegar to get things bubbling. The kids will shape their moon dough into ghosts (adding candy eyes and mouths, perhaps) that will then fizzle away when the eruption begins.

Do you know about the persistence of vision? That’s the concept at play here when you make these cute ghost-themed thaumatropes. Your retinas keep responding to images for a short time after you’ve seen them, and when a new one is presented, your brain can blend the two images together.  Here’s a great resource behind the thaumatrope science  to help explain to your kids what’s happening as they play with their newly created “catch the ghost” toys.

Create a monster lab using household items. All you need is water, oil, antacid tablets, and a few other materials to make a spooky lab beaker lava lamp. It’s a lot of fun and kids love the cool lava-like effect.

Become a mad scientist and learn about how plastic creates a seal around objects with this brain in a bag experiment. It’s incredible how the bag with sharp pencils driven through it doesn’t leak! Once you’ve studied it, pull the pencils from the bag, and watch as the “brain” leaks and oozes.

As you’ve probably guessed, these Halloween activities are not meant to scare or frighten your kids. Rather, they should be fun and educational for all involved! We hope that this list of 25 easy Halloween science experiments has provided you with some inspiration for how to make the most out of this fun holiday in your classroom, homeschool, or just to have some educational fun with the kids .

More Holiday Science Experiments for Kids

• 30 Christmas Science Experiments
• 35 Valentine Science Activities
• 28 St. Patrick’s Day Science Experiments

I'm Donella, the voice, heart, and wit (sometimes) behind this blog. I homeschool my pre-teen son by day and moonlight as a blogger and freelance writer. I'm a Diet Pepsi aficionado with a bookshelf that's always overflowing. My two dogs—a German Shepherd and a Beagle—are my fluffy shadows. I love planning in my bullet journal almost as much as I love hoarding notebooks and pens. I may be an introvert who missed her calling as a desert hermit, but that just gives me more time to write, right?

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25 Halloween Science Experiments

Halloween + science = AWESOME  Halloween science experiments! Easy Halloween experiments using simple supplies make for creative STEM projects for all ages. Make sure to join us for 31 Days of Halloween STEM Countdown .

Amazing Halloween Science Experiments

Themed science like these Halloween experiments should be fun and stress-free for everyone! Click on the links below to read more about how to do each Halloween science experiment.

Looking for ideas for younger kiddos? Make sure to check out these Halloween sensory activities and Halloween activities for toddlers to preschoolers .

Get your FREE printable Halloween science project guide!

Flying Ghost Teabags

Think you have seen flying ghosts? Well maybe you can with this easy flying tea bag experiment . All you need are a few simple supplies for a fun floating tea bag science experiment with a Halloween theme.

• Halloween Slime

Our Halloween slime collection has everything you need for making the BEST Halloween slime recipes including fluffy slime, erupting potions slime, pumpkin guts slime, and even taste safe or borax free slime. The possibilities are endless once we show you how to master slime making!

And yes, slime making even fits into the NGSS standards for grade 2, states of matter!

You will want to make these Halloween slime recipes:

• Pumpkin Slime
• Witch’s Brew Fluffy Slime
• Orange Pumpkin Fluffy Slime
• Bubbling Slime
• Fluffy Zombie Slime
• Halloween Black Glitter Slime

Wizard or Witch’s Brew

Well that’s we call it! This simple Halloween experiment is an exothermic reaction which may sound scary but it’s really a whole lot of foamy fun. A few simple ingredients from the grocery store and you’re exploring some great chemistry for Halloween.

Gelatin Heart Experiment

Gelatin isn’t just for dessert! It’s for Halloween science too with a creepy gelatin heart experiment that will have your kids squealing with grossness and delight.

Frankenstein’s Frozen Brain

Wouldn’t Dr. Frankenstein be proud of your Halloween frozen brain activity which explores the properties of water. Is it a liquid or a solid?

Erupting Jack O’Lantern 

This Halloween science experiment is going to get a bit messy, but it’s super cool! An erupting Jack O’Lantern is a must try at least once!

S pooky Liquid Density Experiment

Explore the density of liquids with an easy to set up spooky Halloween liquid density experiment with items around the house.

Fizzy Ghosts Experiment

Kids love anything that fizzes, so our ghost theme baking soda and vinegar experiment is perfect for little hands!

Halloween Candy Experiments

We all know what happens Halloween night… Our kids get a ton of candy that often goes uneaten or we would wish it would go uneaten. Instead of arguing with the kids over how much candy to eat, encourage them to try candy science experiments instead.

Ghost Bubbles 

Build bubbling ghosts with this simple ghost experiment ever scientist will enjoy!

Spider Oobleck

Spidery Oobleck is cool science to explore and has only 2 basic kitchen ingredients.

Spidery Ice Melt

Ice melt science is a classic experiment. Add a spooky spidery theme with this Spidery Ice Melt  .

Halloween Lava Lamp Experiment

This lava lamp experiment  is a hit all year round but we can make it a bit creepy for Halloween by changing up the colors and adding accessories. Explore liquid density and add in a cool chemical reaction too!

Bubbling Brew Experiment

Mix up fizzy bubbly brew in a cauldron fit for any little wizard or witch this Halloween season. Simple household ingredient create a cool Halloween theme chemical reaction that is just as much fun to play with as it is to learn from!

Halloween Oobleck

Oobleck is a classic science activity that is easy to turn into Halloween science with a few creepy crawly spiders and a favorite theme color!

Frozen Hands

Turn an ice melting science activity into a creepy fun Halloween Melting Ice Experiment  this month! Super simple and super easy, this frozen hands activity is sure to be a big hit with kiddos of all ages!

Halloween Bath Bombs

Kids will have creepy clean fun with these scented googly eyed Halloween Bath Bombs . They are just as fun for kids to make as they are fun to use in the bath!

Puking Pumpkin Experiment

Kids will love making their own puking pumpkin for Halloween with a few simple household ingredients.

Halloween Balloon Experiment

Blow up a ghostly Halloween balloon  with a simple chemical reaction.

Ghostly Floating Drawing

Is it magic or is it science? Either way this floating drawing STEM activity is sure to impress! Create a dry erase marker drawing and watch it float in water.

Rotting Pumpkin Jack

Pair a fun pumpkin book with a rotting pumpkin experiment for all things Halloween science.

Bonus Halloween STEM Activities

Skeleton bones bridge.

This Skeleton Bone Bridge Challenge is a fantastic STEM challenge for Halloween using super simple materials and is perfect for one kiddo or a large group!

Halloween Candy Catapult

Newton has nothing on our DIY popsicle stick catapult for Halloween ! Explore the laws of motion while flinging eyeballs or Halloween candy around the room.

Pumpkin Geoboard

A twist on the classic geo board activity when you use a pumpkin instead of a board. A halloween geoboard offers some great fine motor skills practice too!

Ghostly Structures

A Halloween twist on a classic STEM building activity. Challenge your kids to build the tallest ghost with this styrofoam ball project.  We simply grabbed materials to use from the dollar store.

5 Tips For Easy Halloween Science

Halloween-themed science experiments can be a fantastic way to engage kids in learning while having fun. Here are five tips for conducting Halloween experiments with your kids either at home or in the classroom.

TIP 1: Add In Halloween Colors & Accessories

Select experiments with spooky or Halloween-related themes. For example, experiments involving witches’ brew (chemical reactions), ghostly balloons (static electricity), or creepy-crawly critters (biology) can capture kids’ imaginations and enthusiasm.

TIP 2: Ask Questions

Encourage students to actively participate in the experiment by asking questions, making predictions, and recording observations .

TIP 3: Explain the Science

Take the time to explain the scientific principles behind the experiments. Use simple and age-appropriate language to help kids understand the “why” and “how” of each experiment.

TIP 4: Experiment

Encourage creativity by allowing kids to make predictions, create hypotheses, and design their experiments (within safety guidelines). Learn more about using variables in science.

TIP 5: Dress Up

Completely optional of course! Incorporate Halloween-themed props, decorations, or costumes to make the experiments even more festive and engaging.

More Fun Halloween Activities

Make sure to check out our list of easy Halloween art projects and crafts , as well as Halloween LEGO Challenges and Halloween STEM activities . Of course, all things pumpkin science is perfect for Halloween.

Printable Halloween STEM Activities Pack

150+ Pages of Halloween-Themed Materials !

This Halloween project pack is suitable for home, school, and group use for kids in grades Kindergarten through elementary but is scaleable for many ages and abilities.

What’s Included:

• 25+ Halloween theme science and STEM activities with printable sheets, instructions, and useful information all using easy-to-source materials perfect for limited-time needs. Includes a Halloween engineering pack with fun, problem-based challenges for kids to solve!
• The skeleton activity pack includes building a skeleton challenge and a coding challenge! Try a skeleton bones bridge-building STEM challenge!
• Halloween theme brick printable activities for hands-on learning with math that is perfect for early finishers or home fun and reinforces basic math concepts.
• Bonus fun pack includes games and activities to round out your Halloween theme activities such as I Spy, bingo, matching, Would You Rather cards, scavenger hunt, word search, A-Z Halloween hunt, and a coloring page.
• Halloween STEAM Pack includes artist-inspired projects by Warhol, Lichtenstein, and more!

• Pingback: Creepy Frozen Brain Halloween Science Activity for Kids
• Pingback: Halloween Slime Recipes and Ideas For Kids To Make {Videos Too!}
• Pingback: Halloween Science Roundup - Stephenie Peterson - Author

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57+ Halloween Science Experiments | The Ultimate List

By: Author Charlene

Posted on Last updated: October 4, 2023

If you enjoy combining Halloween and homeschooling (or in your traditional school classroom), you have got to take a look at this ultimate list of Halloween science experiments !

At our house, Halloween is more than just fun costumes and lots and lots of candy. Halloween also means messy Halloween science experiments. Science experiments are fun and engaging for kids (and adults!) of all ages.

And throwing a little mess into the mix makes the homeschooling through the Halloween season all that more exciting.

I talked to experts all over the internet so I could put together a master list of Halloween themed science experiments for your enjoyment.

Use this list as a one-stop guide for all your Halloween activity needs.

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Or read more about the other  STEM Made Easy Digital Subscription here.  Each month includes 5 STEM project guides along with step-by-step instructions, worksheets, and extra learning resources to make STEM fun and engaging for kids ages 3-19.

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Why Include Halloween Science Experiments In Your Lesson Plans?

Halloween is a fun and exciting time for students of all ages. It’s a time when students can dress up in costumes, play games, and eat candy. But Halloween can also be a great time to learn about science.

There are many Halloween science experiments that can help students learn about the world around them. For example, you can use candy corn to teach students about the different colors of light. Learn about eruptions, try a dry ice experiment, or make tea bag ghosts. Or experiment with various spooky oobleck or playdough recipes.

You can also use pumpkins to teach students about the process of decomposition. And there are many other fun and easy experiments that you can use to teach your students about science.

Incorporating Halloween science experiments into lesson plans can create a vibrant and engaging learning environment that melds festivity with education.

• Stimulate Curiosity: Halloween-themed science activities can pique students’ curiosity by blending the familiar and festive elements of the holiday with scientific principles. Themed experiments can invite questions and encourage students to explore and seek answers, driving self-motivated learning.
• Engage Students: The playful and mysterious nature of Halloween can make science experiments more engaging and memorable. Students are likely to be more attentive and participative when the learning material is intertwined with elements of fun and surprise, which Halloween naturally provides.
• Encourage Creativity: Halloween experiments often allow for creative adaptations as students work to find solutions.
• Incorporate Cross-Curricular Learning: The best Halloween science experiments are ones that can be integrated with other subjects, such as math for measurements, language arts for documenting experiments, and art for creating visuals, providing a holistic learning experience.

So don’t forget to include some Halloween science experiments in your lesson plans this year. Your students will love them!

If you’re looking for food-specific experiments, check out this list of edible Halloween science experiments . Or keep reading to find the entire collection!

Benefits Of Halloween Science Activities And Experiments

Halloween is the perfect time to get your kids interested in science! There are so many fun and easy science activities and experiments that you can do with items you already have around the house.

Plus, these activities are a great way to get your kids excited about learning. Here are just a few of the benefits of doing Halloween science activities with your kids:

• They’re a great way to teach important scientific concepts.
• They’re a lot of fun for both kids and adults!
• They help kids to develop critical thinking and problem solving skills.
• They’re a great opportunity to bond with your kids and spend quality time together.
• They reinforce learning through hands-on activities.
• They are memorable and create positive learning experiences that last a lifetime.

So, what are you waiting for? Get started on some spooky Halloween science activities today! Your kids will love them, and you’ll be teaching them important skills that they’ll use for the rest of their lives.

Remember to grab and download these free scientific method worksheets ! They go great with any science experiment or STEM project.

57+ Halloween Science Experiments and Activities

Bring out the learning with these fun and educational Halloween science activities and experiments! There's something for all ages in this list.

Pumpkin Investigation Science Activity for Kids

Did you know there is a ton to be learned just from a simple pumpkin? Using this guide (and the free printable) you and your kids can observe and investigate pumpkin seeds, lines, weight, height, and more! It's fun and simple for all ages. Observation is a key facet of science, and this activity is all about that.

When you're done observing your pumpkins, move onto other harvest time produce such as apples, squash, and corn! The possibilities are endless!

Spooky Soda Bottle Rockets

What’s more fun at Halloween than explosions and projectiles? Why not make a soda bottle rocket this Halloween as part of your STEM fun?

Our family made a soda bottle rocket that is able to shoot an empty soda bottle more than 75 feet into the air – again and again and again! It was such a fun way to enjoy STEM education in our homeschool.

Learn how to  make your own soda bottle rocket . This activity is fun for all ages but is geared towards older kids and teens (or younger kids with adult assistance). Or for a more young-child-friendly idea, enjoy a  simple diet soda geyser .

To up the spooky factor, just decorate your flying rocket like a bat or a witch before blast off!

This experiment demonstrates principles of physical science and provides insight into gas pressure, nucleation, and the rapid release of carbon dioxide when Mentos candies disrupt the carbonated liquid's physical properties, creating an explosive, observable reaction that can be measured and analyzed.

Halloween Rock Candy Science Experiment

This activity is not Halloween-specific but it’s still a fun way to bring some science into your Halloween festivities – especially if you throw in a little Halloween-themed coloring or flavors. Orange and black would make some cool-looking candy crystals!

Rock candy is a scientific activity that takes only an hour or two to put together but then keeps kids engaged and learning for more than a week thereafter. Because of the time this activity takes to grow, make sure you start this project well in advance of the day you want to eat.

The rock candy experiment illustrates the scientific principle of crystallization, providing a tangible way to observe how molecules form ordered, solid structures, and also demonstrates the concept of supersaturation in solutions, where more solute (sugar) is dissolved in a solvent (water) than it would normally be able to retain at room temperature, leading to crystal growth as the solution cools and the solute precipitates out.

Are you hosting or attending a Halloween party this year? Consider having your kids make and bring some rock candy to share! Learn how to enjoy your own  rock candy experiment .

Halloween STEM Paper Circuits

My friend Karyn over at teachbesideme.com has some super fun STEM projects with a Halloween theme – including these Halloween circuits.

Glow In The Dark Slime

What says Halloween better than oopey, goopey, Glow In The Dark Slime?

Seriously. This stuff is GROSS! (The good kind of gross, of course!)

Nadia from Fun With Mama has some instructions for a great Monster Slime recipe.

In the daylight, this Halloween slime is a nice green color. Fun and pleasant. But bring it into a dark room and it starts to GLOW. It’s very cool. And the longer this stuff is exposed to sunlight,  the   brighter it glows !

The trick to making Glow In The Dark Slime is one secret ingredient – glow in the dark powder (Who knew they powdered that stuff?) But if you want to skip the ‘glowing’ part, feel free to leave the glowing ingredient out.

Get the instructions for this fun   Glow In The Dark Slime  here

Alternatively, if you aren’t dead-set on glow in the dark slime and just want to explore a bunch of different slime recipes, read this post on using  slime as a science fair project .

Creating glow-in-the-dark slime offers a delightful and tactile way to explore the science of luminescence and non-Newtonian fluids with our students. This engaging experiment allows us to spark discussions about how certain chemicals absorb and re-emit light, and why the slime behaves as both a solid and a liquid, providing a fun, hands-on approach to understanding these fascinating scientific phenomena together!

Exploding Peep Geysers

Have you ever put marshmallows in the microwave? Microwaved marshmallows are a fascinating (and super fun!) concept and this science experiment takes that messy adventure and adds a little bit of education.

This experiment is similar to the exploding Ivory soap experiment that we've included in our latest STEM Made Simple book . Now go make your own Halloween geyser using ghosty marshmallow peeps!

Oozing Pumpkins Experiment

For a lot of kids, making homemade volcanoes is a beloved memory. But have you ever made an oozing pumpkin? As far as my kids are concerned, anything to do with slime or mess is a win in their book.

Kimberly of TeamCartwright.com has some detailed instructions on her site, along with some great scientific observations for a complete educational activity. These are very similar to the soda geysers mentioned above, but with a fun Halloween twist.

There are even scientific diagrams and multiple options for recipes, depending on what you are looking for.  (I especially love that she explains the science behind it all)  It’s quite detailed!

Thanks to all the different options and observations,  this activity is great for kids of all ages!

Bubbling Pumpkin Experiment

Instead of experimenting with the explosive properties of baking soda and vinegar, let's have some fun with soap and bubbles! Find out how with this bubbling pumpkin experiment.

Witch’s Potion

Similar to the Oozing Pumpkin experiment, this witch’s brew is just as slimy and just as fun. Instead of watching your goop explode up and out of your pumpkin, you get to mix potion ingredients into your very own cauldron, just like a real, creepy witch.

At the end of the experiment, dive into sensory play with the slimy goop you just created. It’s like Halloween slime only better!

Cindy from Living For The Sunshine makes this activity seem effortless with her detailed instructions and suggested accompanying activities. She gears her experiments towards preschoolers but even my upper elementary aged kids love this.

Melted Crayon Pumpkin STEAM Activity

Have you ever experimented with melted crayons? This project doubles as both a STEAM activity and a fun art project. Plus, it's a great way to use up some of those old, broken crayons!

Melting crayons offers an exploration into the world of physical changes, allowing us to observe and discuss the concepts of melting points, heat transfer, and the transition of materials from a solid to a liquid state. It’s a colorful and creative way for us to visually understand and appreciate the effects of heat on different substances, while also exploring the artistic potential of science together!

Pumpkin Guts Slime

If nasty, goopy pumpkin guts don't gross you out, you'll probably get a kick out of this pumpkin guts slime activity. Make your own slime using the insides of your pumpkins and jack-o-lanterns! Fun, child-safe, and quite memorable.

Grow a Halloween Monster Science Experiment

The Joys of Boys has a great Halloween science experiment – Grow A Monster!

This experiment takes the chemical reaction of vinegar and baking soda and uses the gases created to blow up a monster balloon. This is a super fun DIY STEAM activity that kids can do all by themselves!

Mad Scientist Lab

During my search for experts to contribute to this roundup, I ran into Marie.

Marie from Fun With Mama has a GREAT Halloween-themed science experiment on her blog –  A Mad Scientist Lab!  (She’s got a bunch of other Halloween activities on her blog too, but for now, we’ll focus on the Mad Scientist Lab.)

Similar to the oozing pumpkin experiment listed above, this Mad Scientist Love is a super fun way to dig into some chemicals and make some fizzing, erupting explosions.

I love how these beakers give this activity a nice finished touch.

This is one of those fun Halloween science experiments that gives kids some lasting Halloween memories.

As a kid, I am certain I would have loved doing this.  And I was never into science experiments as a kid .

My own kids will probably do this experiment at least a half a dozen times before October is over.

Painting Pumpkins with Paintballs

While this activity is specifically geared towards our youngest kiddos, there is plenty of room for discussion. Learn bout gravity, absorption, hydrophilic materials, and more! Plus, your kids will be able to end the project with a beautiful artistic creation.

Shaving Cream Rain Experiment

We are a big fan of hands-on experiments at my house. And  I’ve been itching to try this shaving cream rain experiment for a while now.

Doesn’t this look so fun?

It almost looks good enough to eat! (don’t!)

Although on that note – I wonder how this would work with whipped cream instead of shaving cream?  Looks like we’ve got another fun Halloween science experiment on our hands…

This experiment shows kids an up-close-and-personal version of a rain cloud (and the associate rainstorm.) Even older kids can have fun making their own storm-in-a-jar.

Emily writes these instructions in the summertime – but with some orange coloring, you can easily make this a Halloween-themed activity. (It rains on Halloween, right?)

Mad Scientist Punch

If you ask me, my favorite science experiments are the ones that are edible .

What can I say? I just LOVE FOOD!

This mad scientist punch is a fun Halloween-themed science experiment that you get to eat (drink) after. I call that a win!

When you combine ginger ale with sherbet, you create a fizzing chemical reaction. This chemical reaction looks like a mad scientist explosion. It’s a lot of fun!

Invisible Ink Letters

Now Ashley doesn’t talk about this STEM activity from a Halloween perspective, but  it would not be hard to tie this into some Halloween festivities.

Just imagine you are receiving a letter from a ghost? Or you’re writing a letter to a ghost? Or maybe you’re drawing a secret map that leads to a buried Halloween treasure!

Older kiddos could write their secret letters in a different language (or secret code)  thus making the message even more secret.

Or make a secret invitation to a Halloween party.

The possibilities are endless!

My kids are always engaging in some type of imaginative play.  And these invisible ink letters play into that perfectly.  It’s so fun to see a secret message appear like magic!

And Ashley goes into detail about the science behind this STEM activity (oxidation) so even though it’s fun,  it’s completely educational!

Glowing  Halloween Jack O Lantern Jars

These creepy glowing Halloween lanterns make such a fun and decorative Halloween activity.

These are made by taking a glow stick, cutting it open, and dumping the contents into a glass jar.

Due to the nature of this activity, kids should definitely be supervised by adults.

Levitating Pumpkin Experiment

Have you ever seen a floating pumpkin? In this experiment, your kids will be able to make their pumpkins levitate, or float! This is a fascinating project that will leave all your kids saying, "Wow!".

Building Structures with Candy Pumpkins

You're probably familiar with the concept of toothpick bridges. In fact, we did a toothpick bridges STEM challenge here . Add a Halloween twist to an otherwise year-round activity by using Halloween-themed candy pieces instead! Build bridges or simple structures and shapes, depending on your child's age. It's a great way to teach engineering concepts!

Fizzy Bat Experiment

This fizzing bats activity from Monique at livinglifeandlearning.com is another child-friendly favorite.

The concept is simple. You make bats using a combination of baking soda, coloring, and cookie cutters. Get your hands messy while making your bats. When you’re done playing with step one and are ready to move into step two, get out your vinegar and dump it on your bats. Watch them fizz and bubble and enjoy the giggles of young children!

Fall Borax Crystal Science Project

Making borax crystals is a very popular experiment for elementary ages. This simple experiment can get even more exciting when you manipulate the shape and the color of your crystals.

Making borax crystals with our students gives us a window into the world of crystallography, allowing us to explore and discuss the fascinating process of how crystals form through the slow cooling of a supersaturated solution, and how molecules arrange themselves to create the sparkling structures we see.

Why not try a fall-themed crystal shape that's perfect for the season?

Make a Fall Salt Painting

Salt painting is another fun yet simple activity for younger kids. In this project, your kids will make their own fall or Halloween-themed shapes and then paint them using glue, salt, and paint. Lots of fun and perfect for this time of year.

Does a Pumpkin Float?

Have you ever wondered if a pumpkin floats? At first glance, pumpkins are BIG and HEAVY! Of course they don’t float! But upon further investigation, you might discover your first impulse answer was wrong.

Explore this Halloween science experiment with your kiddos and let them find out for themselves if pumpkins will sink or float – and then discuss why.

Ticia from  adventuresinmommydom.org  has a great walk-through of this simple Halloween experiment, complete with instructions for turning this into an even more detailed adventure.

Glow in the Dark Eggs

Have you ever seen an egg glow in the dark? This experiment creates eggs that spookily glow and give off the perfect Halloween aura. Learn what happens when you combine calcium carbonate (the shell) with vinegar. This is a fun and simple activity your kids will talk about for many years to come.

Quickly Growing Pumpkin Science Experiment

Here is another version of the baking soda and vinegar balloons experiment. This one uses balloons that are decorated to look like Jack-O-Lanterns or pumpkins. Fun, quick, and easy!

Dry Ice Root Beer Science Experiment

For some reason, homemade root beer is traditionally associated with Halloween. This year as you're making your seasonal treat, include some educational aspects regarding the dry ice.

Dry ice is a fascinating material and there is so much to be learned when (safely) observing this object,

Easy Marshmallow Eyeballs as a Fun STEM Activity

Vikki from A Plus Teaching Resources is at it again with this great Halloween STEM activity – Marshmallow Eyeballs.

There is so much science involved in cooking and baking. (and a whole lot of art too!) I know when I’m working in the kitchen, my food turns out a whole lot better if I apply my science knowledge to my cooking, instead of just blindly following a recipe.

I want my kids to grow up learning that same crucial kitchen tip.

So we spend a lot of our STEAM time in the kitchen.

These easy Halloween-Themed Marshmallow Eyeballs are the perfect kitchen activity for kids. I mean, how gross are these?  The ideal Halloween treat!  And a step up from the traditional candy corn Halloween candy.

Halloween Rock Painting Using Physics

This painted rocks project is such a fun Halloween activity with a twist of STEAM! These rocks are not painted with a normal paintbrush dipped in paint. Nope!

These rocks are painted using PHYSICS!

How cool is this?

This does take the purchase of a special art spinning machine.

Halloween Science: Static Electricity Ghosts

We've done this experiment using plastic dragons in the past but you can certainly enjoy a Halloween twist by making plastic ghosts! This experiment is a good way to learn about static electricity and it only requires a couple of materials.

Pumpkin School: Math and Science Activities for Autumn

Charlotte Mason homeschoolers  will love this next one. Cindy from ourjourneywestward.com has an entire article devoted solely to living math and science using pumpkins. Did you know there is a lot to be learned and explored with one simple pumpkin?

Cindy walks you and your kids through exactly how to turn your pumpkin into an in-depth educational adventure. Find the circumference and the diameter of your pumpkin. Count the vertical lines on your pumpkin and then calculate different things such as percentages and fractions. Measure the volume of your pumpkin using water displacement or  enjoy pumpkin races !

Details surrounding all these experiments and more can be found at  ourjourneywestward.com

Does Halloween Candy Sink or Float?

You've floated pumpkins, but have you ever floated Halloween candy?

This experiment is super simple and if you go Trick or Treating, you'll be using items you already have on hand - Halloween candy!

Conduct an experiment with your kids. Make a hypothesis as to which candies will sink and which will float. Then perform your experiment and record your results!

Dissolving Halloween Candy Science Experiments

You might know what Halloween candies sink or float, but do you know which candies dissolve? Experiment with even more states of matter with this simple science activity.

What Happens to a Rotting Pumpkin?

Have you ever asked yourself what happens to a rotting pumpkin> Over at kitactivitiesblog.com, they're performing an experiment to determine just that!

This is the perfect experiment for anybody who carves Jack-O-Lanterns before Halloween but then doesn't know what to do with them afterwards.

Flying Ghost Experiment

This project definitely requires some adult supervision since it uses fire. Star by decorating some green tea bags to look like ghosts. Then light them on fire and see how long it takes them to float!

When you're done, you and your kids will have plenty of opportunities for discussion.

Halloween Pumpkin Science Using Skittles

This is a super simple yet super fun science experiment that even the youngest of learners can enjoy. All you need is skittles, water, and a plate.

Have your kids make a pumpkin out of skittles. Then add a little bit of water and wait for the colors to bleed. Fun and easy!

Erupting Halloween Pumpkin Volcano

Yet another exploding pumpkin experiment. This project never gets old!

Exploding Jack-o-Lantern

Have you seen my exploding sidewalk chalk science experiment ? This exploding Jack-O-Lantern activity takes the same concepts and adds a Halloweeny theme. Perfect for kids of all ages!

Edible Halloween Sensory Bin For Kids

If your little ones benefit from sensory bins, they will love this Halloween-themed one from theinspirationedit.com. This activity is fun and safe for preschoolers, kindergarteners, and kiddos with special needs. Plus, it's just plain fun!

Gummy Bear Osmosis Science Experiment

Study osmosis with this fun gummy bear osmosis science experiment! This activity is perfect for those gummy bears that are leftover from Trick or Treating. Learn what happens to gummy bears when they're soaked in various solutions. Then apply this lesson to other aspects of life.

Frankenworms

If your kids like playing with their food, they are going to love this Frankenworms science experiment. Perfect for Halloween, this STEM activity involves ooey gooey gummy worms. Watch how your worms react to different elements!

Floating Ghost Magnetism STEM Activity!

This science experiment is so simple it's almost like magic! Using magnets, your kiddos will get to make their little ghosts float. Explore magnetic fields and learn why some magnets attract and other magnets repel.

This science activity is complex enough to replace an entire day's (or week's) worth of science lessons, or simple enough to enjoy after school or on the weekend. And it is fun for all ages (including adult!)

Melting Pumpkins

This STEAM activity also doubles as a sensory activity. Let your kids build their very own pumpkins out of everyday household materials. When you're done getting messy, make the mess even bigger and watch your pumpkins melt! This activity is incredibly engaging and perfect for kids.

Tensile Strength Experiment: Find the Strongest Spider Web!

Do you know how to make a spider web? With this activity, you'll get to learn how!

Using physics, kids will get to build their very own spider webs out of yarn, uncooked spaghetti, and store-bought spider web decorations.

They will have to determine which material makes the best/strongest web and then answer the question as to why. It's a ton of fun and highly educational!

Candy Corn Catapults!

These candy corn catapults are the perfect example of a Halloween science experiment. Apply various aspects of STEM and build a catapult (using everyday household materials). then see how far you can launch your candy corn pieces.

Whether you enjoy eating candy corn or not, you will certainly enjoy watching them fly across the room!

Halloween Lava Lamp

Have you ever made a lava lamp? I haven't but according to this post, it's surprisingly easy! Make your very own Halloween lava lamp today!

The Possessed Bone

One of the best things about STEAM is a lot of the experiments work almost like magic! Yes, it's science, but it's still incredibly cool. Combine the forces of science and magic and make your very own possessed bones!

EASY Static Electricity Ghost Experiment

Here is another example of the floating ghosts experiment. Using static electricity, you can make your homemade ghosts float!

Halloween Balloon Races

Turn science into a friendly competition with Halloween balloon races.

Pumpkin Life Cycle STEM Activity

During the spring, we talk about the life cycle of butterflies and other bugs, but what about in the fall? What life cycle do we have to think about then?

Why, pumpkins of course!

Kallysclarroomonline.com takes an in-depth look at the life cycle of a pumpkin and how your kids can learn about pumpkins, produce, and life itself during the Halloween and harvest seasons.

Blood Cell Model Science Activity

This activity is a little bit creepy but a lot of fun. Your kids will get to make a goopey, slimy, blood cell model. And this scientific activity doubles as a sensory activity for younger or special needs kiddos too.

You'll need a few specialty ingredients but you'll find all the details over at adabofgluewildo.com. This activity is appropriate for grades PreK-12, depending on how deeply you dive into the science.

Halloween Marshmallow Science Experiment

What happens when you put a marshmallow in the microwave? The answer might surprise you. Experiment with marshmallows in this Halloween science experiment.

Ghost Rockets

Using old film canisters (or other small plastic containers) and Alka Seltzer tablets, your kids can make their very own ghost rockets!

These rockets may be small but that doesn't mean they're any less fun. Do you know how high your ghosts will fly? Perform the experiment to find out!

Edible Rock Cycle for Kids

Use your leftover Halloween candy to enjoy this edible rock cycle experiment. Teach kids all about rocks and their life cycles (sedimentary, metamorphic, igneous, etc), all with simple pieces of candy. It's fun and educational too! (Not to mention delicious.)

Fizzing Ghosts

Here is another science experiment that doubles as a sensory activity. Have some fun with moon dough and then when you're done, watch your homemade ghosts fizz away!

Track Your Halloween Loot 

Turn your Trick or Treating adventures into a full-in science lesson by charting and graphing your Halloween goodies! Have your kids sort, count, track, and compare everything they got on Halloween. This is a fun and simple way to enjoy some Halloween science without making a mess or excluding older or younger siblings!

DIY Halloween Monster Slime

Learn about non-Newtonian fluids with this DIY Halloween monster slime recipe. You could even save the slime for another day and play with it again and again!

More Halloween Science Activities

Still need more ideas beyond the favorite Halloween science experiments shared above? Here are some more Halloween science activities your kids might love.

• Magic Faces on Bananas – Your kids can draw funny Jack-O-Lantern faces on a banana peel and then watch it magically appear! This is a simple and fun activity that even the youngest of kids can do on their own.
• Sliced Pumpkin Science Experiment – This science experiment does not involve chemicals for a chemical reaction. Instead, this experiment involves the scientific method and physics.

• Find the Speed of Light with Peeps – Watch this video to see how your family can learn about the speed of light with these simple, marshmallowy treats!

• Pumpkin Elephant Toothpaste – This Halloween, add some seasonal fun to your elephant toothpaste by making the insides of a pumpkin your experiment’s vehicle.

More Educational Halloween Activities

Science shouldn’t take over the entire Halloween season! Here are some educational, fun Halloween activities that your kids will enjoy.

Halloween Word Search

• Halloween Word Search – I’ve got a free Halloween activity packet here that includes a free Halloween word search.
• Halloween Mad Libs – This free printable Halloween fill in the blank activity is reminiscent of the popular Mad Libs activities.
• Halloween Coding Activity – Here is a free Halloween scratch activity where kids can code their own candy collector.
• Number Recognition Games – Vikki from A Plus Teaching Resources has got such a great variety of free math games for little kids – complete with the Halloween theme.
• Halloween Color by Number – Marie from Fun With Mama has some of the cutest Halloween-themed color by number pages I’ve seen.
• Halloween Suncatchers – These cute Halloween suncatchers are geared mostly for the youngest of homeschoolers.
• Halloween Memory Game – This game promotes brain development and critical thinking.

See something you’d like to try? Or something you have tried in the past?

I’d LOVE to hear about your activities!

Comment below and tell me all about your Halloween fun!

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Halloween Chemistry Experiments

Get your homeschoolers excited about science this Halloween! These Halloween chemistry experiments are the perfect way for kids to explore scientific concepts in a unique and interactive environment.

More fun and entertaining Halloween ideas right this way! Check out my list of other fun Halloween activities for kids .

From spooky bubbling wizard brew to blasting ghosts, these experiments will have your children captivated with all things Halloween-themed.

With easy-to-follow step-by-step instructions and simple supplies needed, this list of experiments will guide you through each step of creating enjoyable, creepy, and knowledge-loaded chemistry reactions!

This post may contain affiliate links meaning I get commissions for purchases made through links in this post. Read my disclosure policy here.

See a list of my favorite Amazon Deals for your home and homeschool.

More Halloween Activities

Looking for more Halloween activities to add to your list of fun? How about combining the spookiness of Halloween with some educational and engaging chemistry experiments for kids? Here are a few ideas to get you started:

Jack-O-Lantern Sensory Bin : Dive into a world of tactile exploration with our Jack-O-Lantern Sensory Bin! Filled spooky spiders and mini pumpkins, this interactive activity will captivate little imaginations. Let your child’s senses come alive as they scoop, pour, and create their own Halloween magic.

Halloween Math Worksheets : Make math monstrously fun with our collection of Halloween Math Worksheets! From counting candy to solving spooky equations, these worksheets are designed to engage young learners while reinforcing essential math skills. Watch their confidence grow as they tackle Halloween-themed challenges in a playful and educational way.

Halloween Word Search Printable : Get ready to unleash your inner word detective with our Halloween Word Search Printable! Packed with spine-tingling words like “ghost,” “vampire,” and “pumpkin,” this puzzle is perfect for keeping kids entertained during the Halloween season. Sharpen your focus, grab a pen, and embark on a thrilling word hunt that will leave you spellbound.

These Halloween ideas will add a ton of fun to your homeschool.

Recommended Halloween Books for Kids

Not only do these Halloween books add a festive touch to your homeschool lessons for Halloween, but they also provide a wealth of knowledge and entertainment for your kids.

Recommended Halloween Activity Kits

Halloween, the spookiest and one of the most fun holidays of the year, is just around the corner! And there are plenty of fun activities that kids can take part in including these recommended Halloween activities for Kids.

Are you looking for a creative and entertaining way to celebrate Halloween with your kids? Why not try adding some science into the mix with these Halloween chemistry experiments? Not only are they festive, but also packed with educational values - perfect for your kids' science lessons.

Bubbling Pumpkin Experiment

This fun and bubbly science experiment will introduce your young scientist to basic chemical reactions in a bit spooky way!

Fizzy Pumpkin Science Experiment

Pumpkins are a favorite during Halloween! Why not make them fizzle and sizzle in this fun chemistry experiment for kids?

Spooky Dry Erase Floating Ink Experiment

What's more spooky than seeing ghosts floating around this Halloween? Find out how you can make kids create their own floating ghosts in water using dry-erase ink!

Tea Bag Ghost Experiment

Amaze your little science lovers with a flying cute little ghost in this fun science experiment involving tea bags!

Simple and Creative Bubbling Halloween Lava Lamp

If your kids are curious about how lava lamps work, this Halloween-themed lava lamp DIY experiment is surely going to satisfy your young learners' minds!

Magic Halloween Potions Science Activity for Kids

Play pretend witch with your child this Halloween and create Halloween potions in different colors!

Ghost Rockets

Your homeschool kids will surely have a blast with this blasting ghost experiment!

Melting Pumpkins Science Experiment

If your kids are fascinated with chemistry and pumpkins, this pumpkin experiment is not your usual pumpkin carving!

Dancing Frankenworms

What's more creepy than worms crawling from the underground this Halloween! Make them dance in this fun Frankenworms experiment for kids.

Halloween Pumpkin Volcano Science Project

Find out how you can turn a Halloween pumpkin into a lava-spilling volcano in this exciting chemistry experiment for kids.

Halloween Chemistry Experiment and Wizard's Brew for Kids

Turn the wizard's brew into an opportunity of learning and fun in this amazing Halloween-themed chemistry activity for your young science lovers at home.

Exploding Jack-o-Lantern Pumpkin Science Experiment

Make Jack-o-Lanterns explode while teaching your kids about the wonders of chemistry in this fun Halloween experiment involving simple supplies that won't break the bank!

Monster Eyes Halloween Science

Create a monster eye using naked eggs! What do we mean with naked eggs? Find out in this fun Halloween experiment for kids!

Spooky Halloween Balloon Science

Find out what kind of materials are needed to make a simple chemical reaction that makes this Jack-o-lantern balloon blow up in this fun chemistry experiment for kids.

Did you find a fun Halloween experiment to do with your kids? You can’t go wrong with any of these and they’re perfect for the month of October.

Fun Jack-O-Lantern Sensory Bin

Halloween STEM Activities

Amazing Halloween Science Activities

Halloween Number Worksheets on 3 Boys and a Dog

Halloween Color By Number Printable on Homeschool Preschool

Halloween Scavenger Hunt on Life with Darcy and Brian

I share educational printables and activities to help homeschoolers make learning science fun and engaging!

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Top Halloween Chemistry Projects

Spooky Halloween Chemistry

• Projects & Experiments
• Chemical Laws
• Periodic Table
• Scientific Method
• Biochemistry
• Physical Chemistry
• Medical Chemistry
• Chemistry In Everyday Life
• Famous Chemists
• Activities for Kids
• Abbreviations & Acronyms
• Weather & Climate
• Ph.D., Biomedical Sciences, University of Tennessee at Knoxville
• B.A., Physics and Mathematics, Hastings College

A little chemistry can add a lot of ghastly, ghostly effect to your Halloween celebration. Here's a look at some of the top Halloween projects you can do that apply your command of chemistry. The best part? You don't even need to be a chemist. These Halloween projects involve everyday chemistry that anyone can do!

Glow in the Dark Pumpkin

You don't need a knife or a candle to create this eerie jack-o-lantern face. It's surprisingly quick and easy to make a phosphorescent pumpkin for Halloween .

Make Fake Blood

I think we can all agree it's best to use fake blood for your Halloween celebration. Of course, you can buy fake blood, but if you make your own you can control the exact color and consistency (plus it's simply fun to make fake blood ).

• Realistic Fake Blood
• Edible Fake Blood Recipes
• Blue or Green Fake Blood
• Glow in the Dark Blood

Dry Ice Fog

There are a few different ways to create creepy Halloween fog. Dry ice fog is nice because it's non-toxic, doesn't have a weird chemical smell (like smoke machine juice), and billows out tons of fog that naturally sinks to the floor.

Glowing Hand of Doom Punch

If floating a candy eyeball in a punchbowl is a little too tame for you, try making Glowing Hand of Doom punch. This punch is fizzy, glows, and produces fog. What more could you ask for? It even tastes good!

Green Fire Jack-o-Lantern

Putting a tealight in a jack-o-lantern produces a nice, cheery glow. If you really want to scare away the evil spirits, don't you think a burst of green fire would work better? I thought so, too.

Turn Water into Blood

... and then back into water. This is a classic color-change chemistry demonstration that you can use as a holiday pH indicator demonstration or as a really cool effect at a Halloween party... or both.

Make Ectoplasm

Ectoplasm is that goo left behind when ghosts interact with the realm of the living. This stuff is relatively non-sticky, so feel free to decorate yourself with it, your home... you get the idea.

Homemade Face Paint

You can avoid potential toxins and allergens by preparing your own Halloween face paint. This face paint recipe produces a creamy white face paint, which you can use as it is or color to suit your needs.

Dry Ice Crystal Ball

A real crystal ball is pretty cool, but I would argue this dry ice crystal ball is even cooler because (a) it's literally icy cold and (b) it contains swirling whorls of fog, which you just don't see in a real crystal ball unless maybe you're psychic. You could make the effect even more spectacular by placing a small LED light into the container.

Dry Ice Ghastly Jack-o-Lantern

If you stuff your jack-o-lantern with smoldering leaves, I am sure it will produce a lot of attractive smoke. However, it will smell like fire and I think most people will assume you are using a defective candle rather than trying to achieve a spooky effect. On the other hand, filling your pumpkin with dry ice fog will be eerie and spooky.

Smoke Bomb Jack-o-Lantern

Fake flesh and organs.

Chocolate-flavored fake organs, anyone? You can adjust the color and consistency of the edible fake flesh and organs to make shiny fresh-looking organs or dark crusty-looking fresh. This is any extremely easy way to make fake body parts.

• Flesh and Organs
• Edible Blood and Guts

Science Halloween Costumes

If you're going to do chemistry projects for Halloween, maybe you should look like a chemist while doing them... or a mad scientist or evil genius:

• Scientist Halloween Costume
• Mad Scientist Costume

Foam at the Mouth

Perhaps your Halloween costume involves foaming at the mouth rather than blood. If so, here's a quick and non-toxic way to create that rabid look. Mix baking soda and vinegar and add a colorful candy to create foam. You'll look rabid in no time!

Flaming or Glowing Drinks

Halloween is the perfect occasion for flaming or glowing party drinks! Drinks you set on fire will contain alcohol, since that's the fuel for the flame. You can go either way with glowing drinks , making them for kids or for adult celebrations.

Glowing Gelatin

Are you looking for an easy-to-make spooky treat for Halloween? How about glowing gelatin? You can make any flavor of Jell-O glow in the dark or you can add the glow effect to unflavored gelatin for decorations. The gelatin is safe to eat -- it just looks creepy. Step By Step Glowing Jell-O Instructions

Crystal Skull

Grow a crystal skull to use as a spooky Halloween decoration or simply to give your home a Goth or Indiana Jones flair.

Make a Flamethrower Jack o' Lantern

Why use a wussy tea light to illuminate your Halloween jack o' lantern when you can apply a bit of chemistry to make a flamethrower jack o' lantern? Although this pumpkin looks intimidating, it's actually a lot safer than you'd think. 

Dancing Ghost Science Trick

Make a paper ghost dance around in the air, as if by magic. Of course, it's really a matter of science. Electrons are the magicians in this simple trick.

• Color Change Chemistry Experiments
• Cool Halloween Jack o Lanterns
• Halloween Chemistry Demonstrations
• Halloween Reaction or Old Nassau Reaction
• How to Preserve a Halloween Jack-o'-Lantern
• Chemistry Science Fair Project Ideas
• Where to Buy Sodium Hydroxide
• Science Fair Project Help
• How to Grow Aragonite Crystals
• Science Fair Experiment Ideas: Food and Cooking Chemistry
• Spooky Halloween Jack-o-Lantern
• Science Projects for Every Subject
• Valentine's Day Chemistry
• Plant and Soil Chemistry Science Projects
• Holiday Chemistry Projects
• How to Select a Science Fair Project Topic

Top 30 Halloween Science Experiments: Spooky Experiments

Welcome to our spooky laboratory of Halloween delights! We are thrilled to present an enchanting compilation of the top 30 Halloween experiments specially curated for students and teachers.

Halloween offers an opportunity to dive into mysterious reactions, uncanny creations, and spine-chilling observations. These hands-on experiments are suitable for all age groups.

Whether you’re a daring teacher searching for captivating activities or a curious student craving a thrilling learning experience, we are here to make your Halloween unforgettable.

Get ready to explore the dark corners of science and unravel the mysteries that lie within this bewitching season.

1. Ghost Rockets

This thrilling activity combines the mystery of ghosts with the excitement of launching rockets. By using a few simple materials, students can create their own “ghost rockets” that soar through the air with an eerie charm.

Learn more: Ghost Rockets

2. Magnetic Flying Ghosts

Get ready to be mesmerized by these magical Magnetic Flying Ghosts this Halloween! This captivating science experiment combines the allure of ghosts with the wonders of magnetism.

Learn more: Magnetic Flying Ghosts

3. Ghost in a Bottle

As the chemicals react, carbon dioxide gas is released, causing the balloon to expand. This experiment not only intrigues and mesmerizes but also teaches important concepts like chemical reactions and gas formation.

Learn more: Ghost in a Bottle

4. Leakproof “Brain in a Bag” Surgery Experiment

This captivating activity allows students to step into the shoes of a surgeon as they perform a simulated brain surgery. By using a specially designed bag filled with liquid and a model brain, students can practice their surgical skills without the mess.

Learn more: Steamsational

5. Frankenstein’s Hand

It’s a spine-chilling opportunity for students to learn the wonders of science while embracing the Halloween spirit.

Learn more: Frankenstein’s Hand

6. Ghosts Craft

Get ready to get crafty and summon the Halloween spirit with a ghost-themed craft project! This delightful activity allows students to create their own spooky and adorable ghosts using simple materials.

Learn more: Ghost Craft

7. Creepy Density

Explore the spine-chilling world of creepy density with this intriguing science experiment! By using a few simple materials like water, oil, and various objects, students can investigate how different substances have different densities.

Learn more: Creepy Density

8. Ghosts Mud

As they knead and mold the mud, it takes on a ghostly appearance, resembling ethereal apparitions emerging.

Learn more: Ghost Mud

9. Pumpkin Decomposition

This experiment not only teaches important concepts like decomposition and nutrient cycling but also fosters an understanding and appreciation for the natural world.

Learn more: Pumpkin Decomposition

10. Flying Tea Bag Ghosts

Students can transform ordinary tea bags into soaring apparitions by carefully cutting and decorating them to resemble ghostly figures.

Learn more: Flying Tea Bag Ghosts

11. Witches Brew

Get ready to brew up some magic with the mysterious Witches Brew! This enchanting activity allows students to create their own concoction using a combination of ingredients to simulate a bewitching potion.

Learn more: Witches Brew

12. Make Spooky Noises

Using simple objects found around the house, students can produce eerie and haunting sounds that are perfect for Halloween.

Learn more: Make Spooky Noises

13. Jumping Ghosts

This captivating activity combines the spooky allure of ghosts with the mysterious power of static electricity. Students can create their own ghostly figures using lightweight materials like tissue paper or fabric.

Learn more: Jumping Ghost

14. DIY Glow-in-the-Dark Window Gel Clings

This illuminating craft allows students to create their own spooky and mesmerizing window decorations using glow-in-the-dark gel clings.

Learn more: Science Kiddo

15. Articulated Hand Model

Learn about the intricacies of anatomy with the fascinating Articulated Hand Model! This engaging activity allows students to create a realistic hand model that mimics the movements of a human hand.

Learn more: DIY Articulated Hand Model

16. Create Wizard’s Brew or Witch’s Potion

This enchanting activity allows students to create their own mystical potions using a combination of ingredients and imagination.

Learn more: Create Wizard’s Brew or Witch’s Potion

17. Halloween Hand Melt

This experiment not only captivates and intrigues but also teaches important concepts like solubility and the effects of temperature. It’s a hauntingly exciting way for students to explore the wonders of science while embracing the spirit of Halloween.

Learn more: Halloween Hand Melt

18. Exploding Peep Geysers

As the heat builds up inside the marshmallows, they rapidly expand and release a geyser-like eruption of sugary foam.

Learn more: Exploding Peep Geysers

19. Frankenstein’s Phlegm

This slimy and gooey activity combines the creepy essence of Frankenstein with a revolting concoction.

Learn more: Frankenstein’s Phlegm

20. Pumpkin Slime

This sensory experience not only sparks creativity and imagination but also promotes fine motor skills and tactile exploration. It’s a delightfully messy way for students to embrace the Halloween spirit and engage in hands-on science.

Learn more: Pumpkin Slime

21. Spiders with Light-Up Eyes

Don’t miss out on the chance to bring your Spiders with Light-Up Eyes to life and add a spooky glow to your Halloween decorations!

Learn more: Spiders with Light-Up Eyes

22. Halloween Robots

Students can design and build their Halloween-themed robots using materials like cardboard, motors, sensors, and craft supplies.

Learn more: Halloween Robots

23. Glowing Crystal

Prepare to witness the enchanting beauty of a Glowing Crystal this Halloween! This mesmerizing activity combines the captivating allure of crystals with a touch of luminescence.

Learn more: Glowing Crystal

24. Pumpkin Power Project

This project not only sparks curiosity and creativity but also introduces basic concepts of circuits and electrical energy.

Learn more: Science Buddies

25. Jello Worms for Halloween

It’s a wiggly opportunity for students to embrace the Halloween spirit and delight with these deliciously creepy Jello Worms.

Learn more: Jello Worms for Halloween

26. Halloween Catapult

Get ready for a thrilling Halloween activity that combines engineering and excitement: the Halloween Catapult! Students can design and build their own catapult using materials like popsicle sticks, rubber bands, and a spoon.

Learn more: Halloween Catapult

27. Fizzing Eyeballs

This experiment not only engages and fascinates but also teaches important concepts of acid-base reactions and effervescence. It’s a spine-chilling opportunity for students to embrace the Halloween spirit and explore the wonders of science.

Learn more: Fizzing Eyeballs

28. Foaming Bubbly Witches Brew: A Sensory Play

Students can create their own cauldron-like container using a large bowl or bucket, filling it with water and adding non-toxic food coloring to create a bewitching potion.

Learn more: Foaming Bubbly Witches Brew

29. Spinning Spider

Get ready for an arachnid adventure that combines the creepy allure of spiders with the fascinating magnet science: Spinning Spiders! Students can create their spinning spider using materials like a small cardboard cutout of a spider, a magnet, and a string.

Learn more: Spinning Spider

30. Halloween Magic Milk

Get ready for a spellbinding Halloween experiment: Halloween Magic Milk! This captivating activity combines the eerie ambiance of Halloween with a touch of scientific magic.

Learn more: Halloween Magic Milk

Similar Posts:

• Top 100 Fine Motor Skills Activities for Toddlers and Preschoolers
• 68 Best Chemistry Experiments: Learn About Chemical Reactions
• Top 58 Creative Art Activities for Kids and Preschoolers

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31 Days of Halloween STEM Activities and Projects

Halloween STEM Activities to celebrate a 31 day countdown. Includes Halloween Science, Technology, Engineering and Math, plus FREE printables, Halloween Art and Halloween Sensory activities! Updated with even more exciting Halloween Activities for kids!

Halloween is the perfect time for some fun and engaging STEM activities . There are just so many activities that capture a child’s interest and imagination during this season, and so many of them are perfect for our young scientists! We love Halloween around here and to celebrate I’m planning 31 days of Halloween STEM Activities countdown to Halloween. Whether you are at home or celebrating in the classroom, we have activities for all ages. Join us on our month long Halloween STEM adventure!

Fun Halloween STEM Activities for Kids

What you will discover in this article!

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This project started almost 10 years ago. My kids LOVE Halloween and they wanted to try a new Halloween activity every day for the month of October. Kind of like a Halloween advent calendar. I loved the idea and over the years this list has grown as we added new fun Halloween activities every year! We now have over 31 science, technology, engineering, arts and math activities that are going to make the countdown to Halloween amazing for your children! We have activity ideas for preschool, elementary, middle school, high school and even adults will get in on the spooky fun.

Enjoy these spectacularly spooky Halloween STEM Projects!

Halloween Science Experiments

So many amazing Halloween science projects! Halloween and crazy science are a perfect fit for lots of fun and learning.

Flying Ghosts Tea Bag Experiment

This is a fun WOW worthy experiment that will excite your little scientists. Especially once their ghosts take flight! Take a moment and explore the thrilling science of Flying Tea Bag Ghosts !

Magnetic Flying Ghosts

This is another fun flying ghosts experiment that uses the power of magnetism and a little engineering, to make ghosts fly like magic! This is a fun twist on our Wingardium Leviosa experiment for Halloween.

Spooky Spider Magnetic Science

This project is an amazing STEM project for Halloween! It involves some engineering, math and geometry, and it is powered by the thrilling science of magnets! With this Spooky Spider Magnet Science Project kids will build a special spider web with a spider that dances, jigs and wiggles its way around the web. So cool!

Halloween Skittles Experiment

Got lots of candy, no problem! Put it to great use with this Skittles Experiment. Make spooky designs, then watch the fascinating science unfold in this Halloween Skittles Experiment .

Halloween Balloon Races

This physics challenge is a spooky fun blast! So simple to set up, kids explore Newton’s Laws of Motion as they have fun racing their Balloon creations. A fantastic project to do in the classroom, homeschool or at a Halloween Party. Check out Halloween Balloon Races .

Halloween Marshmallow Science

This quick and fun science experiment let’s kids also explore their artistic side before learning about the expanding energy of heat! From toddlers to teens, this Halloween Marshmallow Science is so much fun!

Gummy Mummies

Kids love this combination of Lego, History and Science! And who doesn’t enjoy mummies at Halloween? Check out Gummy Mummies Science Experiment .

Glow in the Dark Science

Halloween is the perfect time to add some glow to your science experiments and projects! Here we’ve gathered up our favourite Glow in the Dark activities , and included the science behind the glow for your lessons and learning.

Halloween Magic Milk

Inspired by a much beloved science experiment, magic milk, we set out to mix our own Halloween colours by applying the colour wheel, then explored the magical science of Magic Milk with a Halloween twist .

Grow Scented Halloween Crystals

Grow Your Own Scented Halloween Crystals . These decorations are extremely durable and fun to make. Exactly what we need to decorate for the big day.

Halloween Chemistry Experiments

Halloween moon dough – fizzing ghosts.

We LOVE moon dough! It is such an incredible sensory experience and so much fun to play with. In this spooky activity we bring in some chemistry to create a really cool fizzing ghost science experiment for Halloween . I mean really, how cute is this science???

Halloween Balloon Experiment

This is a fun activity that involves a surprise! Kids can make balloons, ghosts, or anything they can imagine. Then set off the chemical reaction to reveal their spooky designs. This Halloween Balloon Chemistry Experiment is so much fun!

Monster Eyes – A Halloween Egg in Vinegar Experiment

Have you ever made a rubber egg? This classic chemistry project is so fun, especially with our Halloween twist where we turned them into squishy, bouncy, rubbery Monster Eyeballs !

Puking Pumpkins – Volcano Pumpkin Science Experiment

This chemistry experiment is always a HUGE hit with the kids. Carve your pumpkin then use a little chemistry to turn it into an erupting volcano pumpkin. As my son proudly declared: It’s a puking pumpkin !

Make A Glow In The Dark Lava Lamp

These are so much fun, my kids love it every time we do this activity. Glow in the Dark Lava Lamps are the perfect way to take the traditional lava lamp science experiment and give it a Halloween twist.

Spooky Glow-in-the-Dark Milk Plastic

Make plastic figures at home with a spooky theme that actually glow in the dark! Making plastic from milk (casein) is a fantastic chemistry experiment for kids. With this twist creating Glow in the Dark Plastic Halloween Trinkets , kids will have a blast with their science lessons.

Halloween Bath Bombs

These bath bombs are the ultimate blend of chemistry, math and art! Make sure you get all your ingredient ratios perfect, so you can set off be best fizzy reaction. We have lots of cool Halloween inspired bath bomb recipes including Monster Eyes, Glow in the Dark, Pumpkins, and more spookily perfect ideas. Pick the perfect Halloween Bath Bomb Project for your kids.

Halloween Engineering Projects

Candy catapult.

This Halloween STEM activity is an absolute BLAST! Engineer your own catapult then launch candies into pumpkins and cauldrons. Kids will learn engineering, physics and math, all while having fun! Makes a great party game or classroom project. Candy Catapult is a great Halloween game. For a different challenge, check out this pumpkin catapult made out of Lego by our friends!

Candy Engineering and Math Challenge

This Candy Construction STEM project is tasty fun! Learn math, physics and engineering skills, while also building critical thinking, problem solving and fine motor skills. All in one tasty, fun activity that has kids trying to hit the target with candy.

Build a Skeleton Hand

In this Biology STEM Activity we are building a model of the hand that is very Skeleton like! Kids can make theirs out of black construction paper and use white or glow in the dark markers/paint to decorate their spooky, moving hands. Building Skeleton Hands is a fantastic STEM challenge for Halloween.

Frankenstein Candy Dispenser DIY

Learn about simple machines and build a fun Frankenstein candy dispenser. This spooky and simple Halloween STEM project, is perfect for the classroom or after school STEM program. All you need is a few cups, craft sticks, cardboard and candy! Perfect for a little classroom trick or treating session STEM style! Learn how to build your own Frankenstein Candy Dispenser .

Build a Haunted House Challenge

This is a great quick challenge with the kids that uses recycled materials and creativity for spectacularly spooky results! Build a Haunted House STEM Project with your kids.

Halloween Coding and Circuit Projects

Halloween mummy circuit craft.

We took a simple Halloween Craft and powered it up with a simple circuit project that will thrill and excite your students! Check out this Halloween Mummy Circuit Craft for your Halloween STEM project plans.

Halloween Bat STEM Craft

A fun bat twist on our Mummy Circuit craft is this Halloween Bat Toilet Roll Craft with glowing red eyes. This simple circuit project is fun and spooky. Perfect for Halloween!

Build a Fruit Battery out of Pumpkins!

Learn about battery cells, currents, voltage and more as you build a battery out of pumpkins and squash. Do it right and you can light an LED! Build a Pumpkin Battery this Halloween and wow your students!

Halloween Coding Activity

Kids love this screen free printable coding activity for Halloween. A fantastic way to introduce students to sequencing, while applying their critical thinking, problem solving and attention to detail skills. Free printable included for STEAM Powered Family mailing list members. This Halloween Coding Activity is perfect for the classroom or homeschool.

Glow Salt Circuits

Perfect for STEMists from elementary to high school, these salt circuits are so easy to make but have big wow factor when you turn off the lights! Glow Salt Circuits are a must do with your students this Halloween.

Build a Witch or Wizard Circuit Wand

Planning on heading out as a witch or wizard this year? Make your very own Circuit Wand that lights up at your command! (Or by closing the circuit)

Wizards Coding Printable

Screen Free Wizards Coding Challenge- a fun, educational, free and spooktacular coding Halloween. Try your hand at some fun screen free coding challenges with this Magical Wizards Coding Fun Pack .

Pumpkin Squishy Circuits

This is a tried and true project that is so much fun! The play dough does dry out though, so don’t make the play dough for the Pumpkin squishy circuits too far in advance of your lessons.

Candy and Edible Halloween Science

Halloween and candy go together perfectly, so why not use some of that candy to teach a little Halloween Science?

Halloween Candy Bomblicious Recipe

These sweet treats are the perfect recipe for Halloween to make with the kids. The best part is smashing them open to find the surprises inside. A great project for a Halloween party! DIY Halloween Candy Bombs .

Candy Science

Dive in deep with a unit study into the science of candy making. Kids love Candy Science because success in this lab is sweet!

Glow in the Dark Jello Recipe

Explore polymers and eat them too with this glow in the dark jello activity. Perfect for a Halloween party!

Layered Lollipops

A beautiful layered density experiment with candy that smells and looks amazing! If you have lots of lollipops or hard candies hanging around this Halloween, this is a great way to use them to explore scientific principles.

Halloween Slime and Oobleck

Glow in the dark oobleck.

Slime and oobleck are perfect for Halloween and I have lots of it planned over our 31 days. To kick things off we are going to play with some glow in the dark oobleck that glows with or without black light!

Halloween Oobleck Spider Search Game

Take your oobleck to a whole different level with this variation that makes a fantastic Halloween party game. Halloween Oobleck with Spiders .

Glow in the Dark Slime

We LOVED making this slime and it turned out perfect! Excellent for a Halloween party and the paint creates the fluffiest texture in the Glow in the Dark Slime .

Halloween Math Activities

Halloween math logic puzzles.

Introduce your students to a fun Sudoku style challenge with these Halloween themed Math Puzzles . A fun Halloween Math learning activity.

Halloween STEAM and Art Projects

Halloween thaumatropes.

Thaumatropes are a traditional optical illusion toy. With this project we are creating Halloween themed Thaumatropes to trick the eye, which is always a treat! Printable available.

Halloween Agamograph STEAM Project

This optical illusion project is a fantastic classroom STEAM project for October. The results look incredible displayed around the classroom and school and will demonstrate optical illusions and perspective to all students. This Halloween Agamograph is a fantastic Halloween Art conversation piece!

Halloween Art and Math Challenge

Combine a little art with lot of math as you complete these Halloween Line Art projects . We’ve also included some bonus writing prompt crafts making this the perfect project for a classroom.

3D Halloween Art Project

Explore depth and perspective as we move from 2 dimensions to 3 dimensions with the spooky 3D art project for Halloween .

Halloween Pomander Project

In this heritage activity, kids create the most amazing smelling, and adorable pomanders . It builds fine motor skills, promotes creativity and is an incredible sensory experience (you NEED to smell these!!!). Make them with oranges or mini pumpkins for Halloween.

Halloween Pumpkin Melted Crayon Art

This beautiful, no carve, pumpkin decorating project is a wonderful and colourful way to decorate your Halloween pumpkins this year. Melted crayon art is all the rage with kids, they love the colourful results that are so simple to create. Definitely add Melted Crayon Art Pumpkins to your Halloween plans this year!

Halloween Spinning Pop Up Card

In this STEM project, kids use our free printable templates to create a Halloween card that pops up and spins. They get to pick from two different spinning designs. These Halloween STEM Cards are brilliant for Halloween party invitations.

Halloween Printables

Spooky ha lloween tetris printable.

Spooky Tetris is a fun printable version of the game that has been shown to have significant cognitive benefits and may even help with healing from trauma. Check out this fun printable version for your kids.

Join the STEAM Powered Family and get a FREE Halloween themed Maze and Word Search. Designed with a little extra challenge for your older kids.

Don’t miss out on our Bats and Cats Activity Pack!

Grab the Printable Pack Inspired by This Popular Resource in our Shop

Includes a calendar with 31 Days of Halloween Activities, task cards, challenges, games and more.

5 Days of Smart STEM Ideas for Kids

Get started in STEM with easy, engaging activities.

25 Spooky Science Activities for Halloween

This is a SCARY BIG post today!!  You’ll get 25+ Spooky Science Activities for Halloween like candy experiments, slimy brains, and witch’s brews perfect for the kids. This list of Halloween science experiments is perfect for school, homeschool, spooky Halloween parties, and more!

First up is my master list of Spooky Science Activities.  Basically, it’s The Babe’s and my bucket list of science-y stuff to do between now and October 31.  I’ll probably add a few to our annual Halloween bash for the kids, too.  Nothing like some creepy mad scientist experiments or ghostly rockets to keep the fun going!

Body Part Science Activities

I thought I’d start with some of the spookiest of the science activities.  Slice and dice, fizzle and freeze…  Have fun with body part spooky science!

• Learn about the brain and have some spooky fun with   5 Messy Ways to Play Brain Surgeon  from Left Brain Craft Brain.
• Build an  Articulated Hand  with this surprising tutorial from De Tout et De Rien.
• Make some googly   Halloween Fizzing Eyeballs from Little Bins for Little Hands.
• Making these is just as fun as melting these  Halloween Hands from Happy Hooligans.
• Explore anatomy with   Felt Body Parts from Fun at Home with Kids.  This would make a great Halloween costume!

Spooky Science Candy Activities

Need a way to get rid of some of those pumpkins full of trick-or-treat candy?  Turn them into spooky science experiments!

• Explore Skittles, Snickers, and more with Halloween Candy Science Experiments from Left Brain Craft Brain.
• Find out how to float the M’s off of M&M’s with  Candy Experiments from Mamas Like Me.
• Create some colorful  Candy Potions  with this activity from Housing a Forest.
• Separate your candy colors with  Candy Chromatography from Kids Activities Blog.
• Hypothesize and test those fun-size candy bars with a   Candy Bar Science Experiment from Reading Confetti.
• Explore science concepts with a   Skittles Density Rainbow from Gift of Curiosity.

Mad Scientist Activities

It’s good to be a crazy scientist when you are a kid (or even a kid at heart).  Here are some fun ways to do it.

• Conduct a crawly   Creepy Density Experiment from Science Sparks.
• Play dress-up and do some science with the   Mad Scientist Lab from Fireflies and Mudpies.
• Explore the properties of   Vampire Blood   with   Inspiration Laboratories.
• Make some creepy   Glowing Mad Science Jars from Growing a Jeweled Rose.  This one has a great trick for making Glow Water!
• Play in a messy sensory bin and learn   What is Blood Made of ?  with I Can Teach My Child.

Pumpkin Science Activities

Pumpkins, pumpkins everywhere!!  Explore spooky science with Halloween’s favorite fruit!  Did you know that a pumpkin is a fruit, not a vegetable? 

• Make some Fizzing Pumpkin Treasure Rocks for a fun activity that is perfect for Halloween parties and after school.
• Build some Jack-o’-lantern Halloween Slime with this recipe from Left Brain Craft Brain.
• Create some   Pumpkin Optical Illusions   with these cards from KC Edventures.
• Study the life cycle of a pumpkin and conduct Pumpkin Seed Science Experiments   with these ideas from Apples and ABC’s
• Play with some Bubbling Pumpkins:   We filled The Babe’s Trick or Treat bucket with baking soda and watched the pumpkin bubble over when we added vinegar.  Color the vinegar (we chose black) for extra spooky bubbles.
• Play with some extra messy, super seedy   Pumpkin Oobleck from Sun Hats and Wellie Boots and learn all about non-Newtonian fluids.
• Watch that jack-o’-lantern rot with Pumpkin Decomposition Science from Gift of Curiosity.

Ghostly Science and Witches Brews

This Halloween you might have some little ghosts and witches running around your house.  Give them some scary ways to explore spooky science!

• Launch some  Flying Ghost Rockets from Growing a Jeweled Rose.
• Do some fun play in the bathroom sink with Messy Science Witch’s Brew from The Golden Gleam.
• Stir up some  Witch’s Brew Color Mixing Experiment from The Outlaw Mom.
• Explore the power of gasses with  Self-inflating Ghosts from Mama Smiles.
• Blow some spooky  Boo Bubbles from Steve Spangler Science.

A few more fun spooky science ideas!

Make everyday fun with 31 Days of Halloween STEAM Challenges! To get a set of these free printable activity prompts, simply fill out the form below.

FREE! PRINTABLE HALLOWEEN STEAM CHALLENGE CARDS

Have fun with Halloween Engineering Projects Too!

Even More! Halloween STEAM Fun for Kids

Looking for some more STEAM inspiration that you can use right now? Instant gratification style? Check out STEAM Explorers!! The coolest creative experience for kids is here! It's a digital book of the month club filled with tons of fun stuff for the kids to do and learn. All engineer, teacher, and mom-approved. And most definitely KID APPROVED!⁣

What’s included?⁣

• A monthly digital magazine with cool themes that are fun to read
• Hands-on, exciting projects the kids will love.⁣
• Science, tech, engineering, art, and math learning YOU’LL love.⁣
• Delicious recipes the kids can make.⁣
• Fun printables and games⁣

Get ready to have fun with hands-on STEAM this Halloween! Join us this October as we investigate bats, brains, spiders, candy, and pumpkins through hands-on STEAM!The kids will love building a spider bot, getting grossed out by delicious spider egg cookies, and learning about the brain with hands-on play.

We’ve split the issue into four weekly themes:

• WEEK 1: SENSATIONAL SPIDERS
• WEEK 2: PUMPKIN PROJECTS
• WEEK 3: SPOOKY STEAM
• WEEK 4: TRICK OR TREAT

15 thoughts on “25 Spooky Science Activities for Halloween”

Very cool round-up. Great variety!

Thanks! It was fun to pull together.

holy WOW !!! talk about some scary spooky crazy crafty fun idea :) love it, OMG can’t wait to try a few of these with the little ones, thanks for sharing @tisonlyme143

So glad you love it! Have fun with the spookiness!

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Great ideas.

Thanks Lee!

Thanks Colleen!

Your creativeness will turn little children into little doctors and scientists..what a set of creations..kudos to you

Ronald, your comment has made my day! This is why I write Left Brain Craft Brain…

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10 of the best Witches’ potions

October 4, 2023 By Emma Vanstone 1 Comment

Halloween is just around the corner, so there’s no better time to make some spooky witches’ potions . Potions are a much loved activity at any time of year in our house, but especially so at Halloween! Take a look through this collection of fizzing potions, slimy potions, colour-changing potions and even dry ice potions and let us know if you try any.

Teaching with Potions

Potion making is a great activity just for fun, but it can also include lots of learning opportunities.

• Weigh and measure out ingredients.
• Learn about density and how liquids of different densities can be stacked in a column.
• Use a measuring jug to measure specific amounts of liquids.
• Learn about simple chemical reactions with baking soda and vinegar .

The BEST Witches Potions

Fizzy witch laboratory.

Fizzy potions are easy to make with baking soda and vinegar and look very impressive. I set up a fizzy witches lab for my daughter, and she loved it.

I used test tubes instead of larger containers as it meant she could experiment easily with different colours and allowed her to make lots of eruptions with only a small amount of baking soda and vinegar.

What you need to make fizzy potions

Baking Soda ( Bicarbonate of Soda )

Food colouring

Test tubes or other container

How to make a fizzy witch potions

Place a teaspoon of baking soda, a little water and a few drops of food colouring into each test tube.

Use the pipette to add vinegar to each tube. The mixture should fizz up out of the test tube.

TOP TIP – to make an extra foamy potion, add a little dish soap ( washing up liquid ) before adding the vinegar.

Experiment with different amounts of baking soda, washing-up liquid and vinegar to find the perfect fizz!

Spider Slime

This stretchy slime has a great texture and is very easy to make. It can be squished, stretched and poured and feels deliciously gloopy and slimy!

What you need:

How to make spider slime

Soak the chia seeds in water for a few hours.

When the chia seeds look thick and slimy, add a dollop of PVA glue and enough cornflour to make the mixture thick and gloopy. For a drier slime, add more cornflour.

If you’re worried about children trying to eat the slime, you can miss out on the PVA glue. It just won’t stretch as well.

Magic Colour Changing Potions

Colour changing potions using red cabbage indicator are a great first introduction to acids and alkalis. Children can experiment to find out how many different colours they can make!

To make the red cabbage indicator, you just boil red cabbage in water for about 5 minutes. The red cabbage water is the indicator. It changes colour depending on whether an acid or alkali is added.

I used vinegar, lemon juice and baking soda to create the colours below.

Edible Magic Potion

I really love the look of this steamy potion over on Fun Crafts Kids. Remember to check out the safety warnings first.

Goblin Snot Juice

We shared some easy potion ideas with Day Out With The Kids a while ago. Including creepy Goblin Snot Juice and colour-changing bat brot!

This potion is green water with a layer of oil on the top. If the container is shaken, the mixture separates out into oil and water again!

Witchy Density Jar

This witchy density jar is made in a similar way. Just pour coloured water into a jar with a layer of oil on the top, then try to find different creepy objects to float on the layers.

We found a bouncy ball eyeball floated on the top, and a coin sank to the bottom.

More Potion Ideas for Kids

Print my FREE fizzy potion recipe and create your own potion with the blank recipe page.

More potion ideas for Halloween

The Imagination Tree has a beautiful Fairy Potion that you could turn into a Halloween potion.

We love the look of this polyjuice potion from This Grandma is Fun, too.

If you’re looking for an easy Halloween costume idea , Red Ted Art is full of inspiration!

More Halloween Science Ideas

Try our Halloween party science ideas , including fake blood, pumpkin lava lamps and spider decorations.

My new book Gross Science , is jam packed full of gruesome, sticky and slimy science experiments for kids! Make jelly scabs, chocolate poo, slimy slugs, a blood model and lots more experiments sure to creep out your friends and family!

I’ve also got an exciting collection of Halloween STEM Challenges you might like. Including spider drawing robots, blowing up pumpkin balloons and more!

Last Updated on October 13, 2023 by Emma Vanstone

Safety Notice

Science Sparks ( Wild Sparks Enterprises Ltd ) are not liable for the actions of activity of any person who uses the information in this resource or in any of the suggested further resources. Science Sparks assume no liability with regard to injuries or damage to property that may occur as a result of using the information and carrying out the practical activities contained in this resource or in any of the suggested further resources.

These activities are designed to be carried out by children working with a parent, guardian or other appropriate adult. The adult involved is fully responsible for ensuring that the activities are carried out safely.

Reader Interactions

June 19, 2019 at 11:09 pm

These are going to be a great display for the next Halloween celebrations. Great experiments with some easy to find materials. Thank you Emma!

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