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The Food Chain

It seems that you like this template, the food chain presentation, free google slides theme, powerpoint template, and canva presentation template.

What is the exact meaning of “food chain”? What are its links, and what happens if one of those links disappears? This presentation with ready content answers all these questions in your biology class and gives examples as well. Of course it’s also visually appealing, illustrating forest environments and different animals. Oh, and did we mention it’s also available in different languages? All the more reason to pick the one you need and download it today for Google Slides or PowerPoint!

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Lesson 3 - Food Chain and Food Webs

Producer, Consumer, Primary, Secondary, Tertiary

• Re-cap questions based on previous lessons.
• Discuss what food chains are - introduce key terms for each level of the food chain.
• Explain what happens to energy as it passes down food chains
• Introduce that organisms eat more than one thing - lead into food webs. Handout
• Discuss how populations changes occur when food chains within food webs become unbalanced - relate to Lesson 2 predator -prey relationships.
• Learning check questions
• True or False? - If predator population increases, prey population will also increase.
• Name two things that can cause variation.
• Describe the main differences between the vertebrate groups amphibians and reptiles.

If you have finished, explain why you chose either True or False for Q1

• True or False? - If predator population increases, prey population will also increase - FALSE! The prey population will decrease. Why is this?
• Name two things that can cause variation - Habitat and Diet.
• Describe the main differences between the vertebrate groups amphibians and reptiles - Amphibians = Smooth moist skin, live in water and on land, breed in water. Reptiles = Dry scaly skin, live on land

Describe the stages in a food chain

Explain what happens to energy as it passes through a food chain

Describe how food chains can be put into a food web

Explain what can happen to populations in a food web when the conditions change�

What do you know?

Tell your neighbour what a food chain is and what it shows.

Think about:

What type of organisms are found in a food chain?

How many organisms are involved in a food chain?

Food Chains

Show the feeding relationships between organisms, as well as the flow of energy and matter through a food chain.

Tertiary Consumer

Secondary Consumer

Primary Consumer

Usually a plant. Food chains always start with these

Usually a Herbivore

Usually a carnivore

Is this familiar from Geography?

• Describe what a food chain is
• Draw the food chain below
• Label which organisms are producer, primary consumer, secondary consumer and tertiary consumer.
• Describe what their roles are within the food chain.

Oak Tree Caterpillar Sparrow Sparrow Hawk

Describe what a food chain is - Food chains show the feeding relationships between different organisms as well as the flow of energy through a food chain.

Describe what their roles are within the food chain - Producers start the food chain and are organisms that are able to make their own food (usually plants). Primary consumers which are usually herbivores eat the Producers. Secondary consumers which are carnivores eat the Primary Consumers. Finally Secondary consumers are eaten by T ertiary consumers, which are also carnivores and normally the top predator within the food chain.

Producer Primary Consumer Secondary Consumer Tertiary Consumer

What happens to the energy in a food chain?

Producers gain energy from the sun and consumers gain energy from eating either the producers or other consumers.

However some energy is lost along the food chain...

What do you think?

Draw a mind map in your books of all the ways energy is lost along a food chain…

Think about: How much energy would the sparrow hawk receive?

Each producer is eaten by more than one organism.

Each consumer can eat a variety of other organisms and also be eaten by a variety of different organisms.

Therefore, multiple food chains can be represented in a food web.

Food webs are a network of interconnecting food chains. It shows the energy flow through part of an ecosystem .

Small changes in food webs can have a huge impact on all of the other organisms.

Using the marine food web in your handout:

• Write down each food chain you can see - how many are there in total?
• Identify which organisms would be affected if the sardines were removed from the food web.
• Explain how this might affect the population of Dolphins and Plankton.

Extension - Describe what would happen to the different populations of organisms within the food web if the fisherman was added.

• Write down each food chain you can see - how many are there in total? - 8
• Identify which organisms would be affected if the sardines were removed from the food web - Squid, Cod, Sea Bird and Dolphin.
• Explain how this might affect the population of Dolphins and Plankton - If sardines were removed, both the S quid and Cod populations will decrease, which will cause the Dolphin population to decrease as there is less food for them to eat and thrive. Removing sardines will also increase the plankton population as there are less sardines to eat them so more are able to survive and reproduce.

Micro-Algae

Learning Check:

• Describe and explain what happens to energy as it passes through a food chain.
• Describe the difference between food chains and food webs.
• Why is important to look at population changes in food webs and not just food chains?

Challenge - Scotland have introduced many new species, including beavers, back into the wild. How might introducing beavers to Scotland benefit food web populations?

• Describe and explain what happens to energy as it passes through a food chain - At each stage of a food chain, energy is lost through processes such as heat loss, movement, or matter (waste), so there is less energy at the end of the food chain than there was at the beginning.
• Describe the difference between food chains and food webs - Food chains shows the feeding relationships between specific organisms and the flow of energy within a single chain, while f ood webs shows the relationships between interconnecting food chains as well as the flow of energy through an ecosystem.
• Why is important to look at population changes in food webs and not just food chains? - Food webs show the feeding relationships between different food chains in an ecosystem that often interconnect. Therefore if the population of organisms in one stage of a food chain is affected, this could affect the populations of other organisms in multiple other food chains.

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Food Chains, Food Webs, and Ecological Pyramids

Published by Lisa Giorgi Modified over 5 years ago

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Presentation on theme: "Food Chains, Food Webs, and Ecological Pyramids"— Presentation transcript:

Ecosystem Structure.

Flow of Energy Through Ecosystems B-3.6. Energy Through Ecosystems  The flow of energy through ecosystems can be described and illustrated in food chains,

Warm-Up: Wednesday: November 6 th When you enter the classroom, pick up a new warm-up sheet from the front chair and a lap top from the cart and login.

An energy pyramid shows the distribution of energy among trophic levels.

MRS. SANDY GÓMEZ Energy Flow in Ecosystems. Are the feeding relationships between organisms. A Food Chain is:  transfer of food energy from its source.

2.1 Energy Flow in Ecosystems Biomass is the total mass of all living things in a given area. (measured in g/m 2 or kg/m 2) Organisms interact with the.

2.1 Energy Flow in Ecosystems

13.6 Pyramid Models Pyramids model the distribution of energy and matter in an ecosystem. 1 st Trophic Level 2 nd Trophic Level 3 rd Trophic Level 4 th.

Food Chains, Webs & Pyramids! 1) The Passage of Energy The Sun The source of energy for all life on the planet Producers (Autotroph) Use the sun’s energy.

13.6 Pyramid Models KEY CONCEPT Pyramids model the distribution of energy and matter in an ecosystem.

Part 2: Energy Flow and Nutrient cycles Support life in Ecosystem

Ecosystem Components Producers – Basis of an ecosystem’s energy – Autotrophs: perform photosynthesis to make sugars – Chemotrophs: Bacteria which use.

Food Chains, Food Webs, and Ecological Pyramids. A food chain is the simplest path that energy takes through an ecosystem. Energy enters from the sun.

AIM: How does energy flow through an ecosystem? DN: What is a niche? Can two organisms occupy the same exact niche? Explain.

1 Energy Flow Through an Ecosystem Food Chains, Food Webs, Energy Pyramids.

1. Please place guided reading in the basket. 2

A food chain links species by their feeding relationships.

KEY CONCEPT Pyramids model the distribution of energy and matter in an ecosystem.

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Food Chains – Teaching Presentation

Updated:  08 Jul 2022

Learn about the flow of energy in a food chain with this 12-slide teaching presentation.

Editable:  Google Slides

Pages:  1 Page

• Curriculum Curriculum:  TEKS

Grades:  3 - 4

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Science 3.9(B)

Identify and describe the flow of energy in a food chain and predict how changes in a food chain affect the ecosystem such as removal of frogs from a pond or bees from a field; and

Science 4.9(A)

Investigate that most producers need sunlight, water, and carbon dioxide to make their own food, while consumers are dependent on other organisms for food; and

What Is a Food Chain?

A food chain shows how energy and nutrients move through an ecosystem. For example, the Sun gives energy to plants, which are then eaten by animals, such as herbivores. The energy continues to move when carnivores eat the herbivores. This is how energy is transferred between different organisms.

With this teaching presentation, students will learn what a food chain is, the organisms that make up a food chain (producers and consumers), and have a chance to test their knowledge of these concepts.

Through this activity, students will identify and describe the flow of energy in a food chain.

Tips for Differentiation + Scaffolding 

A team of dedicated, experienced educators created this resource to support your science lessons. 

In addition to whole-class lessons, use this food chain teaching presentation to enhance learning through guided science groups or remote learning assignments. 

If you have a mixture of above and below-level learners, check out these suggestions for keeping students on track with the concepts: 

🆘 Support Struggling Students

Support students who need help understanding the concepts by providing further questioning to help students understand why certain organisms are in a specific place in a food chain. 

➕ Challenge Fast Finishers

For students who need a bit of a challenge, encourage them to draw their own food chain on a piece of paper. Students can show how energy is transferred by drawing at least 4 organisms in their food chain.

Plan lessons for all ability levels with our 10 Best Scaffolding Strategies! 

Easily Prepare This Resource for Your Students

Use the Download button to access the editable Google Slides version of this resource.

This resource was created by Melissa McLaren, a teacher in Massachusetts and Teach Starter Collaborator. 

Don’t stop there! We’ve got more activities and resources that cut down on lesson planning time:  

[resource:4823125]   [resource:4822892]   [resource:3640650]

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Food Chains

Free presentations in powerpoint format.

Food Chains Always Start with a Plant (several)

What Is a Food Chains or Food Webs?

Habitat and Food Chains

Food Webs: Who Eats Who?

Plant and Animal in Habitats

The Energy Pyramid

The Food Chain

Aquatic Conservation

Food Webs of the Estuary

Food Webs: Maximizing Efficiency

Food Chains and Webs

What Animals Eat

See Also: Ecology , Habitats

Food Chain GAMES for Kids

Flash Presentations Food Chains

For Teachers

Lots of Lessons – Food Chain

Free Video Clips/Mini Movies for Kids

Free Online Science Games for Kids

Free Clipart

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Food Chains LKS2 PPT

Subject: Primary science

Age range: 7-11

Resource type: Lesson (complete)

Last updated

2 September 2024

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An in-depth PPT describing food chains for LKS2. Includes differentiated worksheets.

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A Food Chain

Mar 12, 2019

60 likes | 184 Views

A Food Chain. By: ML, ZZ, CP, RM , AB. sun. plants. rabbit. owl. coyote.

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Presentation Transcript

A Food Chain By: ML, ZZ, CP, RM, AB

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