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