Waves: Light and Sound

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Across
  1. 2. the height of a wave
  2. 9. a wave that can travel through a vacuum
  3. 12. a molecule made of carbon and two oxygen
  4. 13. the pigment in skin that helps absorb UV light for protection
  5. 15. high-energy light from the sun that can cause skin cancer
  6. 17. the lowest point of a wave
  7. 20. a doctor who specializes in vision
  8. 22. when a wave bends as it moves between mediums
  9. 23. the number of waves in a certain amount of time
  10. 24. the specific gas layer in the atmosphere that blocks most UV rays
Down
  1. 1. the molecule in our cells that can be damaged
  2. 3. signals sent as discrete pulses that are reliable
  3. 4. signals sent as continuous, varying waves
  4. 5. the layer of gases surrounding Earth
  5. 6. a doctor who specializes in hearing and sound
  6. 7. a pattern of motion that transfers energy
  7. 8. when a wave passes through a material
  8. 10. the material through which a sound wave travels
  9. 11. the distance from one crest to the next
  10. 14. anything that has mass and takes up space
  11. 16. a wave that requires a medium to travel
  12. 18. when a wave bounces off a surface
  13. 19. the highest point of a wave
  14. 21. when a material takes in energy