Light & Sight

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Across
  1. 5. a type of light which has wavelengths that are longer than those of light that can be seen
  2. 6. not bright or clear
  3. 8. the change in shape of the lens of the eye when it changes its focus to look at smth nearer or further
  4. 9. between dark blue and purple in colour
  5. 10. the coloured part of the eye which controls the amount of light that reaches the retina by changing its size
  6. 11. a line of lightor other form of energy
  7. 12. a line of light, heat or energy
Down
  1. 1. to become curved or folded and not straight
  2. 2. part of a camera which controls the amount of light allowed through lens to the film
  3. 3. a long tube with mirrors set at 45 degree angle at each end
  4. 4. smth which makes an image appear smaller
  5. 7. the transparent layer that covers the outside of the eye