Optics

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Across
  1. 2. This helps focus light into the retina
  2. 4. This helps us see the world
  3. 5. This happens when you see yourself in a mirror
  4. 7. This is the whole in the iris
  5. 10. The example of this light source is a Fire Fly
  6. 14. All things are able to pass through
  7. 18. This is responsible for controlling the pupil
  8. 19. What rhymes with light?
  9. 20. This carries nerve signals to the brain
Down
  1. 1. When light is everywhere
  2. 3. This line is drawn from the point of incidence
  3. 6. Some things are able to pass through
  4. 8. The short form for the colours in a Rainbow
  5. 9. The example of this light source is a light bulb
  6. 11. You cannot see though at all
  7. 12. If the object is not being reflected or transmitted what is happening?
  8. 13. When light bends this is formed
  9. 15. The area where the image is produced and converted into nerve signal
  10. 16. This causes something to pass on from one thing to the next
  11. 17. What rhymes with sight?