Science

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Across
  1. 1. a pretend version of something that scientists use when the real thing
  2. 4. what something does
  3. 6. the ability to see
  4. 11. the specific form and shape of something
  5. 12. and also stores memories
  6. 14. a test used to discover new information about a question
  7. 16. a clear object that changes the direction of light as it passes through
Down
  1. 2. energy that comes from sources like the Sun and lamps and makes it
  2. 3. to see things
  3. 5. the clear layer in front of the eye that acts as a lens
  4. 7. the colored part of the eye that is shaped like a donut
  5. 8. a part of the body that receives and responds to signals from the
  6. 9. the dark opening in the center of the eye
  7. 10. the back of the eye that senses light and sends messages to the brain
  8. 13. a part of the body that detects light and sends signals to the brain
  9. 15. too big, small, or complicated to work with