Light crossword puzzle

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Across
  1. 4. the action where one thing absorbs
  2. 5. the section of white light into colors
  3. 7. something that bounces back without absorbing
  4. 9. represents the quantum of light
  5. 10. you can see it
Down
  1. 1. not able to be seen through
  2. 2. the natural thing that simulates light and makes it visible
  3. 3. a completely see through surface
  4. 6. to make a ray of light change direction
  5. 8. allowing light; not detailed shapes to pass through