energy crossword puzzle

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Across
  1. 3. the international system of units
  2. 5. using less energy to get the job done
  3. 8. how high something is
  4. 9. the power an atoms charged particles have to cause in an action
  5. 12. the amount of something
  6. 14. something that is waiting to be in motion
  7. 16. a kind of energy with the ability to make visible to humans
  8. 17. kinetic and potential are made from this energy
  9. 18. something that is in motion
Down
  1. 1. the energy stored in an object of its height above the earth
  2. 2. sustained fission to generate heat
  3. 4. the given speed in a certain direction
  4. 6. something that can't be broken and powers things
  5. 7. something that produces heat and cold from energy
  6. 10. the changing from one type of energy to another
  7. 11. energy stored in atoms or molecules
  8. 13. the result of when a force makes something vibrate
  9. 15. a form of potential energy from being stored in bonds between atoms