Science one-word quiz

Write a one-word answer for each question.

1. The largest organ of the human body

2. The planet closest to the Sun

3. Frozen water is called

4. Splitting of white light into seven colours is called

5. The bending of light as it passes from one medium to another

6. The positively charged particles in the nucleus of an atom

7. The instrument used to measure atmospheric pressure

8. Water changing into vapour is called

9. Animals without a backbone are called

10. The SI unit of electric current

11. The smallest unit of life

12. Animals that eat only other animals are called

13. The lightest gas

14. The process by which a seed starts to grow into a plant

15. The transfer of pollen from anther to stigma

16. Animals that eat only plants are called

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

18. Energy possessed by a moving body

19. The rate of change of velocity

20. Animals that eat both plants and animals are called

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