Thermal Physics Crossword

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Across
  1. 2. How hot or cold something is.
  2. 4. How much mass is inside a volume.
  3. 5. When something gets bigger because it is heated.
  4. 10. Heat transfer through a material by touching.
  5. 11. When a solid changes directly into gas.
  6. 12. Random movement of small particles in a liquid or gas. (8,6)
  7. 13. Energy that moves from a hot object to a cold object.
  8. 16. A state where particles move freely.
  9. 17. A temperature scale starting at absolute zero. (6,5)
  10. 19. When liquid changes to gas at the surface.
  11. 20. A material that allows heat to move easily.
  12. 22. A state where particles move around each other.
  13. 24. Heat energy inside an object. (7,6)
  14. 25. Heat transfer by moving liquids or gases.
  15. 26. A material that stops heat moving easily.
Down
  1. 1. The energy needed to change the state of 1 kg of a substance. (8,5,4)
  2. 3. When gas changes into liquid.
  3. 6. The energy needed to heat 1 kg of a substance by 1°C. (8,4,8)
  4. 7. When liquid quickly changes to gas everywhere in the liquid.
  5. 8. When solid changes into liquid.
  6. 9. The temperature where a liquid becomes a gas. (7,5)
  7. 11. A state where particles stay in fixed positions.
  8. 14. Heat transfer by waves, without touching.
  9. 15. The temperature where a solid becomes a liquid. (7,5)
  10. 18. The coldest possible temperature. (8,4)
  11. 21. When liquid changes into solid.
  12. 23. A space with no particles inside.