Producers, consumers, and decomposers worksheet - Free Printable

Let's solve this Grade 3 Science Worksheet on Producers, Consumers, and Decomposers step by step.

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🔍 Key Definitions (from the worksheet):

- Producer: Makes its own energy from sunlight, air, and soil (e.g., plants).
- Consumer: Cannot make its own energy; must eat other living things.
- Decomposer: Breaks down and eats dead plants and animals.

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Now let’s go through each item:

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1. Grass
🌱 Grass is a plant that uses sunlight to make its own food via photosynthesis.
✔ Producer

2. Elephant
🐘 Elephants eat grass and plants. They cannot make their own food.
✔ Consumer

3. Bacteria
🔬 Some bacteria are decomposers (they break down dead matter), especially in soil. While some bacteria can be producers or consumers, in this context, many bacteria act as decomposers.
✔ Decomposer

4. Tiger
🐅 Tigers hunt and eat animals like deer. They do not make their own food.
✔ Consumer

5. Acacia tree
🌳 Trees use sunlight to make their own food through photosynthesis.
✔ Producer

6. Earthworm
🐷 Earthworms eat decaying plant material and help break it down in the soil.
✔ Decomposer

7. Mushroom
🍄 Mushrooms are fungi. They absorb nutrients from dead organic matter and break it down.
✔ Decomposer

8. Blackberry plant
🫐 This is a plant that makes its own food using sunlight.
✔ Producer

9. Grizzly bear
🐻 Bears eat both plants and animals (omnivores). But since they don’t make their own food, they must consume others.
✔ Consumer

10. Rattlesnake
🐍 Snakes eat small animals like mice and birds. They cannot make their own food.
✔ Consumer

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✔ Final Answers:

1. grass – producer
2. elephant – consumer
3. bacteria – decomposer
4. tiger – consumer
5. acacia tree – producer
6. earthworm – decomposer
7. mushroom – decomposer
8. blackberry plant – producer
9. grizzly bear – consumer
10. rattlesnake – consumer

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🎯 Summary:

- Producers: Grass, Acacia tree, Blackberry plant
- Consumers: Elephant, Tiger, Grizzly bear, Rattlesnake
- Decomposers: Bacteria, Earthworm, Mushroom

This helps students understand how energy flows in ecosystems! 🌿🐍🍄