Across
- 5. To change the direction of light.
- 7. material that lets some colors through and blocks others.
- 8. A clear triangular object that bends and spreads light into colors.
Down
- 1. When light separates into different colors.
- 2. A substance that light can pass through (like air or water).
- 3. A clear, solid, plastic object that is usually square or rectangular in shape.
- 4. To let light pass through.
- 6. To take in or soak up light.