Transfer of energy by heating

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Across
  1. 2. Unit we measure energy with (5)
  2. 3. Metals are these - they allow heat transfer (9)
  3. 8. Energy stored in a battery, food or fuel (8)
  4. 10. Heat transfer that does not need particles (9)
  5. 12. Metals do this when they are cooled (8)
  6. 13. What carries energy through a charger cable? (11)
  7. 16. 1000 Joules (4,5)
  8. 17. Waste energy from a kettle (5)
  9. 18. an animal that uses IR to hunt its prey (5)
  10. 19. The rate at which energy is transferred (5)
Down
  1. 1. Energy transfer process where objects are touching (10)
  2. 4. IR radiation? (5,3)
  3. 5. How energy is stored in a hot object (7)
  4. 6. How is energy stored in a rubber band or spring (7)
  5. 7. Energy stored in height (13)
  6. 8. Energy transfer that happens in liquids and gases (10)
  7. 9. Waste energy from a smartphone (4)
  8. 11. The process of how energy is transferred from a thermal store (7)
  9. 14. Metals do this when heated (6)
  10. 15. A material that prevents transfer of heat (9)