Waves and optics

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Across
  1. 2. The height of a wave
  2. 4. Light waves moving in one direction
  3. 5. A clear object that bends light
  4. 7. When light bounces off something
  5. 9. When a wave spreads out after passing through a small gap
  6. 11. When two waves meet and mix together
  7. 13. When light bends when it goes from one thing to another
  8. 15. How fast a wave goes
Down
  1. 1. A wave that Moves up and down at a right angle to its direction
  2. 3. The length from one wave crest to the next
  3. 6. What a wave travels through
  4. 8. A wave that Moves back and forth
  5. 10. All the colors of light
  6. 12. A smooth surface that reflects light
  7. 14. How many waves pass a spot in one second