Heating and Cooling

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Across
  1. 2. a record of the image made by a thermal imaging camera
  2. 4. when a substance gets bigger
  3. 5. send out (heat, energy)
  4. 9. the sum of the energies of all the particles
  5. 10. energy passed along a solid as its particles heat and vibrate
  6. 13. a device that forms an image using infrared radiation
  7. 14. take in or soak up
  8. 15. mass/volume
  9. 16. throw back (heat, light) without absorbing it
Down
  1. 1. something that prevents heat moving from one place to another
  2. 3. a method of heat transfer in fluids
  3. 6. a measure of the heat energy in hot objects
  4. 7. the way that heat energy is transferred from a hotter place to a colder place
  5. 8. hot air rising
  6. 11. a constant forwards and backwards motion
  7. 12. a space completely free from everything