Waves, Color, and Light

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Across
  1. 2. in a purple object, green light is ___________
  2. 6. light travels in a _______ line
  3. 9. primary pigment, mix of blue and green
  4. 10. height of a wave
  5. 11. variable that responds to change/is measured
  6. 13. an orange filter would allow this color of light to pass through
  7. 15. primary color of light
  8. 16. primary pigment, mix of red and green
  9. 21. unit of frequency
  10. 22. when materials reflect all light and transmit none
  11. 23. in a basketball, orange light is _________
  12. 24. the law of ________ states that angle in = angle out
  13. 27. part of the eye that detects light using special cells
  14. 28. a waves energy is directly related to its___
Down
  1. 1. type of cells located in the eye
  2. 3. when light bends as it changes speed passing through different materials
  3. 4. when materials allow almost all light to be transmitted
  4. 5. the spectrum we can see with just our eyes
  5. 7. variable that is changed in an experiment
  6. 8. objects appear this color when all light is absorbed
  7. 12. when materials allow some light to transmit and some to reflect
  8. 14. primary color of light
  9. 17. all colors of light together makes this color
  10. 18. primary pigment, mix of blue and red
  11. 19. a light ray has an angle of incidence of 10 degrees and an angle of reflection of _____
  12. 20. primary color of light
  13. 25. a transparent material that lets one or more colors pass through, but absorbs the rest
  14. 26. the "normal" condition that experiment results are compared to
  15. 27. types of cells located in the eye