Cooper Williams

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Across
  1. 2. absorb
  2. 3. move back and forth
  3. 9. all light is made of
  4. 11. all forms of waves
  5. 14. distance between crest and resting position
  6. 15. require a medium to travel through
Down
  1. 1. distance between waves
  2. 4. only humans can see
  3. 5. does not require a medium
  4. 6. number of waves
  5. 7. top of wave
  6. 8. bottom of wave
  7. 10. bounce off
  8. 12. wave transfer energy through matter
  9. 13. change direction