Light and Matter

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Across
  1. 4. a material that reflects all light
  2. 5. the area where light enters the eye
  3. 8. go through
  4. 10. see through
  5. 14. the type of variable that is changed by the scientist
  6. 15. a smaller representation of something
  7. 17. the transparent covering of the eye
  8. 18. bounce off
  9. 19. an event that happens naturally but is difficult to understand
Down
  1. 1. when light changes direction
  2. 2. the type of variable that is measured (for data)
  3. 3. the part of the eye that turns light into an electrical signal
  4. 6. this causes light to focus to a point on the retina
  5. 7. NOT see through
  6. 9. a set of parts that work together
  7. 11. light travels in _____ lines
  8. 12. this takes electrical signals from the retina to the brain
  9. 13. a material that transmits almost all light that shines on it
  10. 14. the color part of the eye that can open or shut to let certain amounts of light into the eye
  11. 15. a very thin layer of aluminum or metal added into a clear piece of glass/plastic
  12. 16. the name of the goofy man in the video with the detectives