Light

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Across
  1. 5. person can see distant objects clearly.
  2. 9. material that transmits most of the light that strikes it.
  3. 10. curved piece of glass that refracts light.
  4. 11. person can see close objects clearly.
  5. 13. enlarges images of tiny objects.
  6. 16. material that scatters light.
  7. 17. mirror surface that curves out.
  8. 18. layer of cells that lines the inside of the eyeball.
  9. 19. enlarges images of distant objects.
  10. 20. image of a distant object caused by refraction of light
  11. 21. parallel rays of light hitting a smooth surface.
Down
  1. 1. thinner in the center than at the edges.
  2. 2. where light enters inside the eye.
  3. 3. two colors combine in equal amounts to create a new color.
  4. 4. imaginary line dividing mirrors.
  5. 6. mirror surface that curves inward.
  6. 7. material that reflects or absorbs light.
  7. 8. ring of muscle that changes the size of the pupil.
  8. 12. thicker in the center than at the edges.
  9. 14. colors that combine to make any other color.
  10. 15. image that forms where light seems to come from.
  11. 17. records an image of an object.