Brandon.Rhen-energy puzzle

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Across
  1. 3. headphones (music)
  2. 4. rubbing hands
  3. 5. rubber band
  4. 10. physical energy in motion
  5. 11. panel
  6. 14. pushing desk
  7. 15. once its gone it gone
  8. 17. earth warming
Down
  1. 1. sunlight
  2. 2. stored energy
  3. 6. bond of atoms
  4. 7. falling rocks
  5. 8. charging phone
  6. 9. oil natural gas
  7. 12. energy in motion
  8. 13. can be used again
  9. 16. power plant