Educational worksheet on food chains for kids, illustrating the flow of energy in ecosystems with various animal and plant examples.

Let's solve this Food Chains worksheet step by step.

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🔍 Understanding the Concept:

A food chain shows how energy flows from one organism to another. Energy always starts with producers (like plants), which make their own food using sunlight. Then, consumers (animals) eat the producers or other animals.

The correct flow of energy is:
> Producer → Primary Consumer → Secondary Consumer

So, we need to check each food chain and see if the order makes sense — does the animal on the left get eaten by the one in the middle, and that one by the one on the right?

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✔ Let’s examine each option:

#### 1. Grass → Grasshopper → Frog
- Grass is a plant → producer ✔
- Grasshopper eats grass → primary consumer ✔
- Frog eats grasshoppers → secondary consumer ✔

✔ This is a correct food chain.

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#### 2. Fish → Seaweed → Shark
- Seaweed is a plant → producer ✔
- But here, fish → seaweed: fish don't typically eat seaweed as their main food source in most chains.
- Also, seaweed → shark: sharks don’t eat seaweed directly.
- The order is backwards! It should be seaweed → fish → shark, not fish → seaweed → shark.

✘ Incorrect – energy flow is wrong.

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#### 3. Bird → Mouse → Owl
- Bird → mouse: birds do not eat mice; actually, owls eat mice, but birds are usually predators, not prey for mice.
- Mice are small mammals that might eat seeds, not birds.
- So, bird → mouse is not logical — it's reversed.
- Correct would be: mouse → bird → owl or mouse → owl, but not bird → mouse.

✘ Incorrect – the flow is backwards.

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#### 4. Acorns → Squirrel → Eagle
- Acorns are nuts from trees → plant-based food → producer ✔
- Squirrel eats acorns → primary consumer ✔
- Eagle eats squirrels → secondary consumer ✔

✔ This is a correct food chain.

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✔ Final Answer:

Check the boxes for:
- Grass → Grasshopper → Frog ✔️
- Acorns → Squirrel → Eagle ✔️

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🟩 Correct Choices:

- ☐ [ ] Grass → Grasshopper → Frog → ✔️ Check this box
- ☐ [ ] Fish → Seaweed → Shark → ✘ Leave unchecked
- ☐ [ ] Bird → Mouse → Owl → ✘ Leave unchecked
- ☐ [ ] Acorns → Squirrel → Eagle → ✔️ Check this box

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💡 Summary:

Only two food chains show the correct flow of energy:
1. Grass → Grasshopper → Frog
2. Acorns → Squirrel → Eagle

These follow the natural order: Producer → Herbivore → Carnivore

✔ Answer: Check the first and last boxes.