Light Waves

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Across
  1. 6. To bounce light off a surface
  2. 8. How often a wave repeats
  3. 11. Allows most light to pass through
  4. 14. When light bounces off a surface
  5. 15. Earth’s main natural light source
  6. 18. A straight line showing the path of light
  7. 19. To take in light instead of reflecting it
  8. 21. To move back and forth
  9. 23. A form of energy that allows us to see
  10. 24. All the colors of visible light
Down
  1. 1. What we see when light is reflected from an object
  2. 2. How fast light travels
  3. 3. When light bends as it moves through different materials
  4. 4. The ability to do work or cause change
  5. 5. How strong or intense a light is
  6. 7. Allows some light to pass through, but scatters it
  7. 9. Something that gives off light
  8. 10. The distance between wave peaks
  9. 12. A tool that separates white light into colors
  10. 13. A curved piece of glass or plastic that bends light
  11. 15. A dark area made when light is blocked
  12. 16. A smooth surface that reflects light clearly
  13. 17. Does not allow light to pass through
  14. 20. A way energy travels through space
  15. 22. The direction at which light hits or leaves a surface