Heat and Energy

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