Across
- 4. A straight line that waves travel in
- 6. To change the speed and direction of travel of a wave
- 7. Electromagnetic radiation that is reflected off surfaces and can be seen
- 8. Materials that are clear and let light through
- 10. How different wavelengths of light are perceived
Down
- 1. A transparent material that can absorb certain colors
- 2. Energy emitted as an electromagnetic wave
- 3. A packet of energy that makes up light
- 5. A triangle of glass that can separate light into its different wavelengths (colors)
- 9. To bounce back