energy

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Across
  1. 3. push pull
  2. 5. dark area
  3. 6. curved piece
  4. 7. straight line
  5. 9. motion
  6. 11. bend
  7. 14. produces electrons
Down
  1. 1. pull towards each other
  2. 2. causes vibrations
  3. 4. flow
  4. 8. bounce
  5. 10. rub against
  6. 12. complete path
  7. 13. rainbow