the eye

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