Crossword

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Across
  1. 4. Carries electric signal to brain
  2. 7. lets most light through
  3. 9. bounce off
  4. 10. not letting light through
  5. 11. adds detail to image
  6. 13. Controls the amount of light
Down
  1. 1. A lime absorbs all the colors except ______
  2. 2. The clear outside where the light first enters
  3. 3. Takes in the light
  4. 5. Turns light into electric signals
  5. 6. All the colors reflected
  6. 8. go through
  7. 11. All the colors absorbed
  8. 12. Focuses light and flattens and bends to help us see distances