Unit 1 Light

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Across
  1. 3. A thick layer of smooth metal such as silver is added to the back of glass
  2. 5. No light can transmit through it. All light reflects off the object.
  3. 7. when light passes through an object
  4. 8. A lining at the back of the eye that changes the light input into electrical signals.
  5. 9. A mirror where you can see through it on one side and a reflection on the other side
  6. 10. The light that enters your eyes (what a person sees)
  7. 11. The path the electrical signal takes from the retina to the brain
Down
  1. 1. An object which some light can pass through. Semi-Transparent
  2. 2. Objects that can transmit most of the light that shines on an object
  3. 4. A scientific measure of light for a given area.
  4. 6. the direction light travels
  5. 8. When light passes through the surface of different transparent materials.
  6. 12. when light bounces off an object