What are Ecosystems | Science for Kids

What is an ecosystem?

• A single living organism

• A community of living and non-living things that interact

• A science experiment

• A type of animal

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Which of the following is NOT a type of ecosystem?

• City

• Forest

• Grasslands

• Ocean

What does a food chain show?

• How animals fight for food

• How energy is passed from one living thing to another

• How plants grow

• The life cycle of a caterpillar

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Why are ecosystems important?

• They provide habitats for animals and plants

• They are not important

• They make the Earth spin

• They are only important for humans

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What is the largest ecosystem on Earth?

• The Amazon rainforest

• The Sahara desert

• The Marine ecosystem

• The Arctic ecosystem

What is the smallest ecosystem on Earth?

• A city park

• A backyard garden

• A small pond

• A micro ecosystem

What would happen if a keystone species disappeared from its ecosystem?

• The ecosystem would not change

• The ecosystem would improve

• New animals would quickly take its place

• The entire ecosystem would be impacted

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What is an estuary?

• A dry desert

• An ecosystem where fresh water and salt water meet

• A type of mountain

• A large forest

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How do decomposers contribute to an ecosystem?

• By preying on smaller animals

• By producing oxygen through photosynthesis

• By breaking down dead material and recycling nutrients

• By providing food for primary consumers

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What role do producers play in an ecosystem?

• They consume other organisms for energy

• They decompose dead organisms

• They convert sunlight into chemical energy through photosynthesis

• They regulate the climate

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