Heat

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Across
  1. 2. substances that conduct thermal energy well
  2. 7. no particles to move in a ________
  3. 10. one of the greenhouse gases
  4. 11. most of these are good conductors
  5. 13. ________energy is the total kinetic energy of a substance
  6. 14. transfer of thermal energy by direct contact
  7. 16. waves that can travel through outer space
  8. 18. energy transferred between objects
  9. 19. transfer of energy through electromagnetic waves
Down
  1. 1. the absence of heat
  2. 3. when a fluide circulates due to density differences it makes a convection_______
  3. 4. another name for heat waves
  4. 5. measures the average kinetic energy of the particles in a substance
  5. 6. the atmosphere acts like windows in a _______
  6. 8. when water is heated it becomes less ______
  7. 9. used to measure temperature
  8. 12. unit used to express thermal energy
  9. 15. tranfer of thermal energy through fluids
  10. 17. substances that don't conduct thermal energy well