Across
- 2. when light changes direction by passing through a transparent material with a different density
- 3. kind of light which includes all the colors of the rainbow
- 5. length of a wave from one crest to another
- 6. made when light is blocked
- 7. a special light with only one pure color or wavelength
Down
- 1. also called electromagnetic radiation
- 2. when light change path with a mirror
- 4. device use to show the different colors of a light