P1 Heat (Foundation)

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Across
  1. 4. Involves particles vibrating and knocking into each other
  2. 7. The name for heat radiation
  3. 9. The opposite of a good conductor
  4. 11. this colour is best at absorbing heat radiation
  5. 12. This colour reflects heat radiation
Down
  1. 1. A space with no air particles in it
  2. 2. The unit of heat and energy
  3. 3. time How long before the cost of insulation pays for itself
  4. 4. Cavity wall insulation prevents heat loss from this method
  5. 5. A photograph taken with a thermal imaging camera
  6. 6. These are broken when a solid melts into a liquid
  7. 8. the most commonly used insulator
  8. 10. A type of energy involved in a change of state