Across
- 4. separates colours or dyes
- 6. lights up when electricity flows through it
- 7. when energy makes something move
- 9. measured in newtons
- 13. the milky way is a...
- 15. the rate of electron flow
- 18. the middle of an atom
- 19. where a sperm enters an egg
- 20. means can be bent into shapes
Down
- 1. allows us to see cells
- 2. type of cell that has a vacuole
- 3. means something can dissolve
- 5. biggest planet in our solar system
- 8. the force that we push down with
- 10. what we measure resistance in
- 11. the smallest unit of life
- 12. has the chemical symbol O
- 14. where two surfaces touch each other
- 16. contracts to help us move
- 17. measured in joules