Light

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Across
  1. 4. When light bounces off of an object.
  2. 5. The bending of light waves around opaque obstacles.
  3. 7. The scientific term for how long a light wave is.
Down
  1. 1. Colors based on temperature.
  2. 2. Colors of light humans can't see.
  3. 3. Light bending or passing through a different medium.
  4. 6. How we measure light's colors.