Grade 4 · Science

Grade 4 Science — Ecosystems questions and answers

Food chains in North America. Written in American English for students, parents, and teachers in the United States.

Full Science quiz All Grade 4 subjects

Practice quiz

Question and answer list

Open a card to see the answer. These are original practice items for US elementary students — not a state test copy.

1. A food chain starts with a

Answer: producer (plant)

2. A consumer

Answer: eats other living things

3. A decomposer

Answer: breaks down dead material

4. In a prairie food chain, grass is a

Answer: producer

5. If plants disappear, many animals

Answer: lose food

6. An ecosystem includes

Answer: living and nonliving parts

7. A Yellowstone wolf is a

Answer: predator

8. Humans can protect ecosystems by

Answer: not littering and saving habitats

Pick the next article in this topic — that is how a magazine issue is meant to be used.

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