energy

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Across
  1. 3. anything stretched has this energy
  2. 7. the measure of how heat is a thing
  3. 8. the change of types of energy
  4. 9. type of energy in food
  5. 10. unit of force
  6. 11. a black solid non-renewable fossil fuel
  7. 12. another word for heat
Down
  1. 1. a substance or material which allows energy to go through
  2. 2. a material that does not easily transmit energy
  3. 4. energy for movement
  4. 5. the quality of being efficient
  5. 6. something you can hear
  6. 13. ability to do work