light

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Across
  1. 1. is a colored material that is used to change the color of other substance
  2. 5. light is light generated by using phosphors to convert ultraviolet radiation to visible light
  3. 7. materials only absorb and reflect light; no light passes through them
  4. 8. of refraction is a property of a material that indicates how much the speed of light in the material is reduced compared to the speed of light in a vacuum
  5. 9. materials light but also scatter it
  6. 10. light is generated by heating a piece of metal until it grows
Down
  1. 2. materials transmit light without scattering it, so you can see objects clearly through them
  2. 3. light can have more than one wavelight, can travel in more than one direction, and does not travel in a constant direction
  3. 4. is an image of a distant object produced by the refraction of light through the air layers of different densities.
  4. 6. light is light of only one wavelength that travels in one direction with a constant distance