the eye

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Across
  1. 4. light light produced by nature
  2. 6. spectrum Roy g biv seprated colors of white light
  3. 8. bro
  4. 9. light bends as it passes through matter
  5. 10. matter through which all light passes (clearly
  6. 11. lens with thick middle and thin edges
Down
  1. 1. matter which allows some light to pass (blurry)
  2. 2. matter through which light cannot pass
  3. 3. light made and controlled by man
  4. 5. light bounces off matter in reverse
  5. 7. lens with a thin middle and thick edges