Eyes and Light

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Across
  1. 3. What something does (8 letters)
  2. 5. The back of the eye that senses light and sends messages to the brain (6 letters)
  3. 6. What comes from the Sun and lamps and makes it possible to see (5 letters)
  4. 8. Organ that receives messages from the retina (5 letters)
  5. 9. To take something apart to study it (7 letters)
  6. 13. The clear layer in front of the eye (6 letters)
Down
  1. 1. The dark opening in the center of the eye (5 letters)
  2. 2. A pretend version used when the real thing is too big or complex (5 letters)
  3. 4. The ability to see (6 letters)
  4. 7. The colored part of the eye shaped like a donut (4 letters)
  5. 10. The specific form and shape of something (9 letters)
  6. 11. A test used to discover new information (10 letters)
  7. 12. Changes the direction of light as it passes through (4 letters)