witches brew chemistry experiment

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Bubbling Witches Brew Science Experiment

Bubbling Witches Brew Halloween Science Experiment

Witches brew science expeiment - supplies:.

• ½ cup white vinegar for each colour
• ¼ to 1 cup baking soda
• Food colouring, in various colours
• 1 small container (a mini witches cauldron works perfectly)

Witches Brew Science Experiment - Instructions:

Step 1: colour your vinegar..

STEP 2: Add our magical bewitched ingredient ;)

STEP 3: Create brewing eruption!

STEP 4: Make it last longer!

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Witches Brew Halloween Science Experiment + Worksheets

Kids will have FUN with this EASY science experiment as they make witches brews, LEARN chemical reactions, and EXPLORE colors. Learn how to make extra…

Kids will have FUN with this EASY science experiment as they make witches brews, LEARN chemical reactions, and EXPLORE colors.

Learn how to make extra bubbly witches brews with our special ingredient, have fun color-mixing, and experimenting with acids and bases with this fun Halloween project.

Thank you for visiting. This post may contain affiliate links to recommended products at no extra cost to you. Read our Disclosures and Terms of Use . Don't miss out again, become a  Reader here <--it's FREE. 

The baking soda and vinegar reaction is one of the best at-home science experiments that simply requires two basic items from the kitchen, mixing them together, and watching your kids be amazed at the results!

All of my kids LOVE this activity starting with my oldest child (Little Tiger, age 10) to my middle child (Little Dragon, age 8) to my youngest child (Little Puppy, age 3). We have done it for years now and it never gets old, I think it must be considered a Halloween tradition in our house now.

You can do this science experiment on it’s own, or INCREASE LEARNING with our EASY to use: WITCHES BREW HALLOWEEN SCIENCE PACK .

Each Science Pack is created to:

• Make doing the activity EASY for you!
• Enhance LEARNING for your kids!
• Be ready to PRINT , PREP , and Do !
• PRINTABLE ADD-ONS
• VIDEO EXAMPLE (When available)

Witches Brew Recipe Cards

Witches Brew Lab Worksheets

Don’t see the box?  CLICK HERE   to be directed to the download.

Witches Brew Halloween Science Experiment

If you like our Witches Brew Halloween Experiment I would love for you to PIN IT! It helps you save it for later and others discover it too, which lets us bring you more AWESOME CONTENT like this .

• White Vinegar
• Baking Soda
• Liquid Food Coloring
• Mini Cauldron (s) or Small Bowl(s)
• Glitter and/or Mini Halloween Toys
• Dish Soap for extra bubbles

Directions:

You can watch our short tutorial video or read the directions below.

Have children select which color spell they want to make. Spell Recipe Cards are included in the Printable Science Kit.

Have the children put a spoonful of Baking Soda in the cauldron.

Have children put Food Coloring into the cauldron.

Optional: Have children add 2-3 drops of Dish Soap.

Optional: Have children add glitter or small Halloween toys in the cauldron.

If the spell does not “bubble” up, add more vinegar, and/or stir the ingredients together.

MORE TO ENJOY:

The Best Kids Ideas for Halloween

Halloween Quesadillas

5 Little Pumpkins Craft

Witches Brew Science Experiment

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Explore chemical reactions in this fun Witches Brew Science Experiment! Kids will have a blast creating their own potions while learning how to compare and contrast the reactions of different materials.

This witches brew science experiment can easily be a fun stand alone sensory activity that can very easily be adapted into a science experiment.

Every time we pull out one of our fizzy sensory science activities all my kids, ages 2 to 11, jump in to play!

Witches Brew Sensory Science Experiment

Supplies Needed to Make a Witches Brew:

We use affiliate links on site to help you easily find the items we recommend.

• Baking Soda
• Citric Acid (find it here )
• Food Dye (or a washable liquid watercolor )
• Plastic Cauldrons (we used these )

To turn this witches brew sensory activity into a science experiment you will also need:

• White Vinegar

These two items are completely optional. Feel free to skip them if you just want to create potions!

Witches Brew Science Activity Directions:

To make this witches brew you don’t really need to do much. Simply set out the items on a tray or other surface that can get messy and let kids explore!

It’s really that simple!!

One of the great things about using this witches brew as just a sensory activity is that it uses citric acid.

In the past we have done quite a bit of fizzy sensory bins using vinegar…and well vinegar has a very harsh smell. For kids that struggle with scents, a vinegar sensory bin won’t be the most fun.

Citric acid though is scentless. It’s the perfect alternative to still do those fizzy activities with sensory sensitive kids.

To turn this sensory activity into a science experiment you will have to provide kids something to test. When we did this activity we tested four different variables to see which potion would fizz up the most.

1. Baking Soda + Citric Acid + Water

2. Baking Soda + Vinegar + Water

3. Baking Soda + Citric Acid + Water with Dish Soap

4. Baking Soda + Vinegar + Water with Dish Soap

You could even take it a step further and test ratios of each to see if there is a magical ratio to the perfect potion!

If you give this a whirl with your kids share your results with us on social by using that hashtag #parentingchaos 🙂

And if you aren’t getting ready to experiment with this witches brew right this second, then pin this post so you can easily find it later!

How To Make Witches And Wizards Brew- Halloween Science Experiment For Kids

Happy October 1st! All month long we are celebrating Halloween by conducting spooky science experiments, building creepy crafts, and more!

For today’s science experiment to kick off the month of October, we did a simple Witches/Wizards Brew. We normally talk about the reaction of baking soda and vinegar which creates carbon dioxide when combined, but today I decided to go a bit deeper and talk about color!

How Do We See Color?

We used several colors that exploded in the cauldrons when the chemical reaction occurred, and so my question to my boys were, “How do we see color?”

Here’s my simple explanation to them: When light hits an object, two things happen-1) the object absorbs some of the light and 2) the object reflects the rest of it.  The reflected light goes to our eyes where the cone photoreceptors are, and this allows us to see the color of the object.

This of course prompted more questions such as “how do people who are blind see?”, “How do we see at night?”, “what about people who are colorblind?” So many great questions from this simple witches/wizards brew science experiment!

When you do this experiment with your kids, comment below with their questions! I would love to read what comes to their mind about how we see color.

Now on to our witches and wizards brew experiment…

• Baking Soda
• Food Coloring
• Measuring Spoons
• Measuring Cups

1- Put each cauldron side by side in a tray.

2- Add about 1 heaping tablespoon of baking soda to each cauldron.

3- Add in a few drops of food coloring on to the baking soda.

4- Add about 1/4 cup of vinegar into each of the cauldrons and watch the “potion brew and overflow!”

*Watch our video below to see how we did this experiment and also watch for what my kids call “an EPIC” version of this baking soda and vinegar experiment!

Wizards and Witches Brew Video

EPIC Pumpkin Eruption

Forgetful Momma

Secular Homeschooling

Wizard’s Brew Fun is Brewing

I’m sure we all have pretended to make witches or wizard’s brew as a child. Mix up a bubbly brew in a potions lab fit for any little wizard or witch with an awesome Halloween chemistry experiment and science activity. I’m always looking for fun things to do with my kids . This is fun to watch no matter how old you are.

Wizard’s Brew

*This post may contain affiliate links. You can learn more about them in my disclosure policy.*

The weather has been perfect here for this. We can get outside and make a mess! And this outside makes clean-up easy as we can just hose everything down. When we did the baking soda bubble s on the kitchen floor, I had a gritty mess to clean. Oops!

This would make a fun Halloween theme science experiment . Use some spooky, Halloween colors for your food color. Orange. Black. Dark green. Red (blood).

How to Make Different Colors for Halloween:

Orange: red and yellow. Black: 1 part blue, 2.5 parts green, 3 parts red Dark Green: Lots of blue, little yellow

What You Need:

• baking soda
• glitter (optional)

How to make a Wizard’s Brew:

You’re going to start with your jar (or in our case an old glass candle jar) half-filled with vinegar, with a few drops of color added to it. Squeeze in some dish soap, give it a stir.

Now add a heaping spoonful of baking soda. I put our baking soda into a silicone bowl, mainly just to get it outside without losing it all on the walkout, but it also made it easy to dump into the jar .

The dish soap makes it bubble rather than the quick fizz. A nice volcano eruption. It is not a quick erupt and done but lasts for a few minutes.

Now, anything mess-related would not be complete without my children playing in the mess. They’re  washable. Let them have fun. This has dish soap in it, meaning your children aren’t going to be stained whatever color you use.

This is fun. Go have fun with your kids.

What Is the Science Behind It?

The reaction between the hydrogen peroxide and the yeast is called an exothermic reaction. You will feel the warmth on the outside of the container because energy is being released.

The yeast helped to remove the oxygen from the hydrogen peroxide creating tons of tiny bubbles that made all that cool foam. The foam is just the oxygen, water, and dish soap that you added. If you pay close attention, the reaction continues for quite a while and looks quite different depending on the size of the container you use!

Experiment with different sizes of flasks for your wizard’s brew!

Wizard's Brew Science Experiment

A fun, messy activity for kids. This is fun during the Halloween season.

Instructions

• You're going to start with your jar (or in our case an old glass candle jar) half filled with vinegar, with a few drops of color added to it. 
• Squeeze in some dish soap, give it a stir.
• Now add a heaping spoonful of baking soda. I put our baking soda into a silicone bowl, mainly just to get it outside without losing it all on the walk out, but it also made it easy to dumping into the jar.
• Watch the magic. The dish soap makes it bubble rather than the quick fizz. A nice volcano eruption.

I’m already planning on trying this again. I have some small little jars we’ll be using, the more bubbles and wizards brew the better. Plus more colors, and if I can hold off until I get to the store, glitter.

This could be a great addition to a witch’s Halloween custom/set-up .

Recommended Products for Wizard’s Brew

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Spooky Witch’s brew science experiment {Halloween activity for kids}

There’s something special about Halloween season. Kids will love this spooky witches brew Halloween activity. They won’t even realize they’re doing a science experiment at the same time.

Use this fun and easy activity as a STEM project for classroom or at home learning. Have it as an activity at a party. Or just use it for an afternoon of witch themed fun with your kids!

This post contains affiliate links. If you make a purchase after clicking one of my links I may earn a commission at no additional cost to you.

This bubbling cauldron is a perfect STEM activity for Halloween. Kids can experiment using different combinations of ingredients and different amounts to see what results they get.

This activity can get quite messy. You’ll want to put a baking pan underneath and/or do it outside, on a tile floor, or in the bathtub. Basically, somewhere you can easily wash away the mess when your kids are all done creating!

Witch potion making supplies

• 1/2 cup white vinegar (for each color)
• 1/4 to 1 cup baking soda
• Various colors of food coloring
• Witches cauldrons

Make sure you have extra supplies on hand. My daughter had a blast doing this project and wanted to do it again and again! We went through 2 bottles of vinegar before I finally called it a day.

How to make your bubbling witch’s cauldron

1 – Mix vinegar and food coloring in small cups (separate cup for each color)

2 – Pour baking soda into the cauldrons (or whatever container you want to use for the explosion/reaction). Start with about a teaspoon.

3 – Pour one color of vinegar over the baking soda and watch your witch potion brew!

4 – Stirring it a bit will create a bigger eruption.

You MUST mix these in an open container. If you mix them in a container with a lid they could explode the container.

Learning Opportunities

This activity is a great introduction to basic science. They can try lots of different things and see which works the best and creates the best witch potion.

Try different amounts of baking soda

How do you make a bigger eruption? Does more baking soda make a difference? Does how fast you poor in the vinegar make a difference? How about stirring?

Try other items

Let them try different substances to see if they’ll create a reaction. What happens if you replace baking soda with salt, sugar, coffee, etc.

Do not mix your vinegar with bleach or hydrogen peroxide (not that I think you’re likely to let your kids experiment with those.)

To be safe do a quick Google search for the items you want to mix with vinegar to ensure they won’t cause any safety issues.

You can also do the reverse and try pouring other liquids over the baking soda to see if they react. As before, make sure your combinations aren’t going to cause any issues.

Try making a rainbow

Try to make a rainbow potion. We achieved it a few times by dropping food coloring on the dry baking soda, 3-4 colors in different areas of the baking soda.

Then pour the vinegar over top and we actually saw the colors come out separately, it was cool to watch.

Have fun! We’d love to see your witch potions. Share a photo below or tag us on Instagram @totschoolresources

Check our Halloween page for more crafts & activities!

Halloween witches brew

Thanks for sharing!

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Double, double toil and trouble… it’s time to make a cauldron bubble! Explore chemistry with your little witch or wizard as you create your own spooky science experiment.

• Cauldron (or bowl)
• Baking Tray
• Baking Soda
• White Vinegar
• Food Coloring (of your choice)
• Glitter (optional)
• Plastic Eyeballs (or any other creepy “ingredients”)

Place your cauldron on your baking tray, making sure the tray has a little bit of a lip to catch any wayward witch’s brew. Fill your cauldron about a third of the way with your white vinegar. Add a few drops of your food coloring then mix in a healthy squirt of dish soap. Now, it’s time to get creative! Add glitter and other creepy “ingredients” to your brew to make it extra spooky. When you feel like it’s just the way you want it, pour in a heaping tablespoon of your baking soda and watch your cauldron bubble before your eyes!

The Science

This experiment explores two very important chemical reactions – an acid-base reaction and a decomposition reaction. The acid-base reaction happens when your white vinegar (acid) is combined with your baking soda (base). When baking soda (sodium bicarbonite) and the acetic acid in your vinegar are first combined, they create carbonic acid and sodium acetate. This is when the second reaction happens! The carbonic acid creates a decomposition reaction as it begins to break down into water and carbon dioxide gas – creating your boiling, bubbling brew! Learn more»

Further Exploration

• What happens when you use more vinegar? More baking soda? Which mixture works best and why do you think that is?
• Join us for more spooky science fun at our Family Fun Labs on Oct. 27! ????
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Students Become Wizards in this Potions Science Lab!

As an 8th grade science teacher, when Halloween time crept up in the Fall, I always wished that I had a fun, potions-themed, Halloween-esque science lab for my students. But with all the craziness of jumping into the school year, parent-teacher conferences, half-days, holidays, and general exhaustion, I could never seem to get one together. Finally, one summer I decided to pour my energy into creating my dream lab to have on hand!

This ‘Hocus Pocus’ lab’s theme is wizards and potions, and while it’s perfect near Halloween, use it any time of the year to inject some fun phenomena into your curriculum, to create a multidisciplinary fantasy unit with students’ Language Arts class, or to compliment a science unit on acids and bases or chemical reactions!

I set up this lab as stations to keep it as simple for me as possible. You can buy apothecary-looking bottles and jars at the dollar store. The necessary ‘chemicals’ are simple ingredients that you can purchase at the dollar store or grocery store. A lot of these ‘potions’ you would likely have in your science room anyway.

Don’t miss the FREE download of over 80 wizard name cards below!

Welcome Your Wizards

To get my wizards in the spirit, I welcome them into the mad laboratory with cards featuring their special wizard names and I invite them to take a potions booklet. To create the names, I used this Harry Potter Name Generator , but also check out the wizard names at this Fantasy Name Generator . For example, some of my students’ wizard alter-egos were: Norbert Kneen, Tamsin Purkiss, Chervil Drake, Sigrid Arbutus, and Marietta Switch! The clip art pictures on the cards group the wizards for the lab. The wizards will find all potion recipes in their potions booklet.

You can Make a Copy of my a Google Slides version of the students’ wizard name cards (this includes over 80 wizard names!) by CLICKING HERE!

I cut out the cards and hot glue them to small clothespins that my wizards clip onto their shirts.

And to set the mood, you can grab these battery-operated flameless wax candles on Amazon.

Bubbling Cauldrons

Probably my favorite of the stations are the bubbling cauldrons. In three different cauldrons, the wizards will pour dissolved eyeballs on top of colored witch tears. Then, they will drop in some ground up bone tablets and watch the bubbling magic! The ingredients? Vegetable oil, warm water, food coloring, and Alka-Seltzer tablets!

Tie-Dyed Brains

For this station, the wizards drop toad slime on top of liquified zombie brains. Then, they add drops of magic colored potions and tickle the surface with broomstick bristles to create gorgeous swirls resembling tie-dye! The ingredients? Dish soap, milk, food coloring!

Growing a Ghost

The wizards can grow a ghost using the simple ingredients of warm witch tears, invisibility serum, wart powder, and toad slime! The ingredients? Warm water, yeast, dish soap, and hydrogen peroxide!

Witch Blood

Beware the potent witches’ blood! You’ll brew this by boiling red cabbage the night before. Then, when the wizards add spoonfuls of special ingredients (giant’s sweat, dried spider legs, dragon’s drool, and troll ear wax) to their cauldrons of pure witch blood, they’ll get a wickedly pretty result! The ingredients? Red cabbage juice, ammonia, lemon juice, baking soda, and vinegar!

Frankenworms

Throw the possessed frankenworms into a vat of werewolf saliva and watch them dance the night away. The secret is that they’ve been soaked in a strong solution of snake venom! The ingredients? Gummy worms, baking soda, water, and vinegar!

If you’re interested in checking out the full resource, please click on the button below! The full resource includes detailed teacher notes for gathering and setting up the potions and arranging the stations, a supply list with quantities, and explanations of the science behind each phenomenon. It also includes the station signs, apothecary potion labels, and both an editable version of the potions booklet and an alternative full-page version of the student sheets.

This post contains Amazon affiliate links. If you purchase from Amazon after going through these links, I receive a small commission at no extra cost to you.

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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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10 quick and Easy science experiments for toddlers that are totally awesome {2 years old and Up}

It is science week here at Tot School, and to celebrate, we had a week full of daily science experiments for toddlers.

If you are looking for easy science experiments for toddlers to learn and enjoy, these are our top favorites so far!

All of these science experiments for toddlers are age-appropriate, fun, and have been tested and approved by my own toddler 2-year-old toddler as well as my sensory students.

The Best science experiments for toddlers

#1 volcanic eruptions.

Also called witches brew. This science experiment for toddlers come in as number 1 in our list because it is so easy to make, it is so much fun to do, and the kids can do it themselves.

To do this experiment, all you need is some baking soda and vinegar. The mixture between the two created a magic explosion that is safe for the little ones and a lot of fun.

Use food coloring to change the color of the bubbles. Add water to the vinegar to dilute and expand the use of it, the kids love to pour and see the bubbles repeatedly, so this will extend the activity for extra playtime.

Learn how to set up this witches brew experiment with step by step instructions

#2 fizzy cubes.

To make fizzy cubes freeze a mixture of baking soda and water. Activate with the vinegar the same way mentioned above.

To change the activity and work fine motor skills , this activity was set up using a dropper to suck the vinegar and squeeze it into the fizzy cube.

My toddler tried it a few times but wanted a faster way to dissolve the cubes. He enjoyed grabbing each of the fizzy cubes and dropping them into the vinegar cup.

Making Oobleck is one of my favorite activities, but it can get very messy! When you grab this substance, it is solid, but it melts and becomes liquid when you let go of the pressure.

To do this science experiment all you need is two parts cornstarch and 1 part water.

Watch our quick video or get the step by step instructions and learn how to make oobleck

View this post on Instagram Make the coolest science experiment for toddlers and am kids of all ages. All you need is water, cornstarch and food coloring. (Be careful as some food coloring can temporarily stain the hand) 1 cup of water to about 2 cups of corns starch A post shared by Alexa | Kid Activities (@kidactivitieswithalexa) on Jul 15, 2020 at 6:38pm PDT

#4 Sink or Float

Understanding weight is one of the first science experiments that you can do at home. All you need is a bowl of water and a few water-safe objects.

Start by identifying what happens when each objects touches the water. Repetition here is key!

Once tout toddler grasps the new vocabulary words and correctly identifies what is happening then try to ask before the item gets dropped to guess what he thinks is going to happen.

You can repeat this experiment during bath time, at the pool or anywhere you have access to water.

Have you played the sink or float game? Well, actually is a science experiment and one of our favorite activities. I usually let Manu set up the whole thing form the beginning. I give him a pitcher of water and an empty bowl for him to pour h the e water into. Then we walk around and find different things to test out. Will it float? Will it sink? I let him pick what he wants to throw (as long as it can get wet and has no batteries) and this freedom lets him explore and learn. Who knew a bowl of water could be so fun! #2yearoldactivities #toddleractivitiesathome Posted by Kid Activities with Alexa on Monday, September 28, 2020

Learn how to set up the sink of float experiment with step by step instructions

#5 hot and cold.

Learn about temperature using sensory bottles. We filled out one bottle of water with cold water and added a few ice cubes and filled out a second one using hot water. We dyed the cold water blue and the hot water yellow to help associate the concepts.

We also paired this opposite lesson with a YouTube video which we learned the lyrics and acted out the finger-play actions throughout the week.

#6 mixing Colors

Once a toddler is familiar with the colors, can identify and name them correctly it is time to add colors into science experiments. Working with primary colors we have started to create a few experiments to make new colors. This week was all about yellow and blue makes green. We did it with some water, food coloring and soap as well as with paint.

What Primary colors make new colors?

• Red and Yellow makes Orange
• Yellow and blue makes Green
• Blue and Red makes Purple/Voilet

Discovering air is one of the very first science concepts that can be taught, Do this experiment if your child knows how to blow out already. Add a squirt of dish soap into a bowl and some water. Provide a straw and show your toddler how to blow to create bubbles.

Look at the colors the bubbles reflect, can you hold it? does it pop? can you blow on them? what happens?

As a variation of this experiment, you can add watercolor paint to the solution and allow the colored bubbles to pop into a paper to create a work of art.

#8 DIY Lava Lamp

This experiment was one of Manu’s favorite. To create your own DIY lava lamp you will need vegetable oil, water, food coloring and effervescent tablets.

For our first try we filled out 1/2 of the glass cup with water and added food coloring (too much!) and the other half with vegetable oil. I crushed the effervescent tablet in many pieces as I knew my toddler would enjoy dropping them tablets into the glass.

Once the tablet hits the water, it starts to dissolve and create bubbles who travel upwards on the glass, passing through the oil and popping into the surface. Because the water doesn’t mix with the oil, you can visually see how these bubbles travel towards the surface and once they pop how the water travel back down.

For our second try, we did only 1/4 of water and used a lot less food coloring and added a lot more vegetable oil to the glass. The lava lamp looked a lot better as the colored water bubbles had more room to travel.

Cutting up the tablets in different pieces was a great ideas. Manu loved creating the bubbles and enjoyed repeating it over and over.

Slime is a great tool to work on fine motor skills, it is also a cool chemistry experiment. Similar to oobleck, slime changes is composition when played with. It is solid but stretches or breaks. For toddlers, of course, they won’t really understand the science concept behind it but they will enjoy playing with the material and making their own little experiments as they learn and understand how slime behaves. Is not like playdough, it is not like oobleck, it is its own unique material.

I like to use fluffy slime , like the rainbow slime or the white fluffy slime with toddlers. Fluffy slime is less stretchy that other types so it is easier to handle by toddlers.

Learn how to make rainbow slime

Learn how to make white fluffy slime.

#10 Exploring light

Learning about light and dark, shadows and reflections are all science activities you can start exploring early on.

Make shadows using cutout woods or use your hands and a flashlight, use the sun to explore the light and it’s reflection. We have done colored bottles to explore the colors reflect on the floor, made apple shaped suncatchers and made a glow in the dark sensory bottle.

Last Thoughts

Science can be a lot of fun and as you can see, you can start even when they are toddlers. Allowing your toddler time and exposure to different materials and experiments helps them understand the world they live in, gives them the confident to experiment and explore and gain a ton of new information when doing so. Don’t forget to always supervise any experiment or invitation to play.

Get tons of creative ideas to do with your toddler at home! Become a PLAY MEMBER by signing up for the newsletter.

Play members get seasonal activity ideas right in their inbox, a special invitation to our Mommy & Me Virtual Circle time, and access to our free library with educational printables and activities to develop your child through sensory play and reach their developmental milestones while getting a head start when entering Pre-K.

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20 Spooky Science Activities Kids Will Love!

These spooky science activities are so much fun… your kids will totally get a kick out of them!

This Halloween why not nurture your kid’s inner mad scientist by doing some fun and spooky science experiments! These 20 Halloween-themed science activities are all so cool and your kids will absolutely be wow’d. 

There are loads of ideas here that would be great to supplement homeschool or even if your kids go to school outside the home. You can do these activities one evening or on the weekend for some Halloween fun. These science experiments would even be super fun for a Halloween party!

Sunshine Whispers participates in the Amazon Associates and Amazon Influencer Programs. As an Amazon Associate we earn from qualifying purchases. We may earn money or products from the companies mentioned on this site and in this post.  

1.  Fizzing Eyeballs 

Eyeballs! Gross and cool at the same time (they aren’t real eyeballs).

2.  Vanishing Ghosts 

Use packing peanuts for this fun activity.

3.  Creepy Gelatin Heart Halloween Science 

Teach chemistry concepts with this gelatin experiment.

4.  Witches Brew Potions 

These oozing experiments are always a favorite for kids.

5.  Spooky Expanding Ghost 

Use a balloon to demonstrate the properties of gas.

6.  Pumpkin Volcano 

Exploding volcanoes. How can that be a bad thing? Super fun!

7.  Haunted Halloween Hand Melt 

This is a great salt and ice experiment your kids will absolutely love!

8. Ghost Bubbles 

Use dry ice to make these bubbles full of fog instead of air.

9.  Halloween Peeps Science Experiment 

Peeps are not just for Easter. This is a super sweet science experiment for Halloween.

10.  Flying Tea Bag Ghosts 

This is a fun and simple experiment to make your tea bags fly. 

11.  Skeleton Bones Activity

Teach your kids about human anatomy with this science-y activity.

12.  Flying Bat Straw Rockets 

Attach an eye dropper to this cute printable to make your bats fly!

13.  Creepy Density Activity 

A great experiment with density. You get to make a density tower.

14.  Witch’s Brew STEM Challenge 

Baking soda and vinegar make the best witch’s brew.

15.  Candy Corn Volcano 

If you can make a pumpkin volcano, why not make a candy corn volcano?

16.  Monster Lab Science 

Do the mash… the monster mash… or just mix up some cool monster-themed science experiments.

17.  Halloween Science Brain Surgery 

This is a really cool experiment and biology lesson all in one!

18.  Halloween Popsicle Stick Catapult 

Halloween engineering projects are super fun too!

19.  Spider Web Science 

A great way to learn about spiders and their ecosystem.

20.  Ghost Eggs Experiment 

These eggs glow in the dark and as so spooky!

Check Out The Rest Of These Fun Halloween Ideas!

• Disney Princess Costume Ideas
• Super Spooky DIY Halloween Trick-or-Treat Buckets
• 20 Reasons to Skip Trick or Treating
• No Carve Pumpkin Ideas That are Really Cute!
• Book Character Costume Ideas
• Fun Halloween Traditions To Start With Your Family
• Fantastically Spooky Family Friendly Halloween Movies
• Disney Costumes That Aren’t Princesses

More Halloween Craft For Kids Ideas To Try!

• Dollar Store Pumpkin Craft
• Mickey and Minnie No Carve Pumpkin Idea!
• Dollar Store Googly Eye No Carve Pumpkin Craft for Kids
• No Sew Bat Craft for Kids
• No Sew Ghost Craft for Kids
• Pumpkins on a Fence
• Spooky Spider Paper Plate Craft
• Bat Crafts for Kids!

Hi! If you love to have fun with your kids and explore, create, travel, laugh, and love.. you have come to the right place! Follow along to get great tips for fun in Maryland, family travel destinations, and other family fun ideas!

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