Grade 4 · Science

Grade 4 Science questions and answers

Plants, weather, matter, body systems, and space — in °F. Written in American English for students, parents, and teachers in the United States.

Full Science quiz All Grade 4 subjects

Topics

Energy

Heat, light, and motion.

 Ecosystems

Food chains in North America.

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. The Sun is Earth’s main source of

Answer: light and heat energy

2. A moving bike has

Answer: kinetic energy

3. Food gives people

Answer: chemical energy

4. A lamp turns electrical energy into

Answer: light (and some heat)

5. Sound is a form of

Answer: energy

6. Friction can

Answer: slow things and make heat

7. A stored stretched rubber band has

Answer: potential energy

8. Never look straight at the

Answer: Sun

9. A food chain starts with a

Answer: producer (plant)

10. A consumer

Answer: eats other living things

11. A decomposer

Answer: breaks down dead material

12. In a prairie food chain, grass is a

Answer: producer

13. If plants disappear, many animals

Answer: lose food

14. An ecosystem includes

Answer: living and nonliving parts

15. A Yellowstone wolf is a

Answer: predator

16. Humans can protect ecosystems by

Answer: not littering and saving habitats

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