School

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Across
  1. 2. No light can go through
  2. 3. nerve It carry's the signal to the brain
  3. 5. What helps you see far
  4. 6. Something that repeats
  5. 9. Go through
Down
  1. 1. You can see through
  2. 4. controls the light entry
  3. 6. Take in light
  4. 7. Bounce off
  5. 8. Turns light into a electrical signal