Energy

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Across
  1. 4. guitar
  2. 6. lighting
  3. 8. ligthbulb
  4. 9. turning a doorknob
  5. 10. Food
Down
  1. 1. a ball on top of a hill
  2. 2. stove
  3. 3. sun
  4. 5. energy held in the nucleus of an atom
  5. 7. a ball rolling down a hill