Heat Transfer

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Across
  1. 4. the thick layer inside Earth where rock moves slowly in currents
  2. 9. the transfer of energy by electromagnetic waves through space
  3. 10. the transfer of heat by direct contact between solids
  4. 11. a small piece of matter that forms solids, liquids, and gases
  5. 12. energy from the Sun that travels to Earth
  6. 13. the ability to do work or cause change
  7. 15. heat energy carried by invisible waves felt as warmth
  8. 16. the warming of Earth's ground and water by sunlight
  9. 19. the movement of heat energy from a warmer area to a cooler area
  10. 20. the measure of how fast the particles in a substance are moving
Down
  1. 1. a city area that stays hotter than nearby countryside
  2. 2. the transfer of heat through fluids like liquids and gases
  3. 3. large sections of Earth's crust that move slowly over time
  4. 5. waves that carry energy through space or materials
  5. 6. a circular movement where warm fluid rises and cool fluid sinks
  6. 7. the Sun's energy used to power weather, plants, and technology
  7. 8. the amount of mass packed into a certain volume
  8. 14. streams of moving seawater that transport heat across the planet
  9. 17. the layers of gases surrounding Earth
  10. 18. the total energy of moving particles in an object