Intake and Output in Living Things
Explore how living organisms take in what they need and put out what they don't, with a focus on plants and animals.
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Intake and Output in Living Things
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Read each question carefully and answer to the best of your ability. This worksheet will help you understand how living things take in what they need and get rid of what they don't.
1. What do plants take in from the air to make their food?
Oxygen
Carbon dioxide
Nitrogen
Hydrogen
2. What do animals take in to get energy?
Sunlight
Water
Food
Soil
1. Plants use their to take in water and nutrients from the soil.
2. When animals breathe out, they release into the air.
3. The process by which plants make their own food is called .
1. All living things need to take in food and water to survive.
True
False
2. Plants release carbon dioxide as an output.
True
False
1. Describe one way plants take in what they need.
2. Describe one way animals get rid of what they don't need.
Look at the diagram of the food chain below. Then answer the question.

3. In this food chain, what does the rabbit take in, and what does it give out?