Science one-word quiz

Write a one-word answer for each question.

1. The process by which green plants make their food

2. The largest planet in the solar system

3. The part of a plant that absorbs water from the soil

4. The green pigment in leaves

5. The largest organ of the human body

6. Water changing into vapour is called

7. The planet we live on

8. The hard natural substance that is the hardest known

9. The natural satellite of the Earth

10. The organ we use for hearing

11. The organ we use for seeing

12. The force that pulls objects towards the Earth

13. Animals that eat both plants and animals are called

14. The instrument used to see very tiny things

15. The star at the centre of our solar system

16. The planet known as the Red Planet

17. Animals that eat only other animals are called

18. The planet closest to the Sun

19. Water vapour changing back into liquid water

20. The layer of air around the Earth

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