Across
- 5. external part of a plant cell
- 6. gives the plant its green colour
- 10. the process of changing state from gas to liquid
- 12. a temperature where solids turn into liquids
- 14. their particles can slide on one another
- 15. the name of solid water
- 16. the gas produced when boiling water
- 17. it helps the plant cells to store liquids
- 18. fundamental units of the nervous system
Down
- 1. a temperature where liquids freeze
- 2. a temperature where liquids start turning into gases
- 3. can be found on the sun's surface
- 4. you use it to measure the temperature
- 7. controls what goes in and out of the cell
- 8. their particles are strongly held together
- 9. external threads on some cells that keep away bacteria
- 11. their particles have almost no bonds to hold them together
- 13. the brain of the cell