Across
- 1. _ is a form of energy
- 3. there are _ stages in a cockroach's lifecycle
- 6. _ is the process when water -> ice
- 9. _ is the process when water droplets -> water vapour
- 10. _ expand the least when heated
- 11. _ expand the most when heated
- 13. a seed needs water, oxygen and _ to germinate
- 16. metals are good _ of heat
- 18. _ is the process when water vapour -> water droplets
- 19. plastic is a heat _
Down
- 2. _ of an object is a measurement of its degree of hotness.
- 4. matter _ when cooled
- 5. we measure temperature using a digital _.
- 7. matter _ when heated
- 8. _ is the amount of matter in an object
- 12. light travels in _ lines
- 14. _ is the amount of space occupied by an object
- 15. _ is our primary source of energy
- 17. heat flows from a _ region to a colder region