Across
- 4. The bending of a wave when it enters a medium
- 6. The combination of two waves to form a resultant wave of greater or lower altitude
- 7. A wave with a specific pattern that carries information
- 10. Matter that allows no light to pass through
- 11. The region where light is obstructed or blocked
Down
- 1. A change in direction of a wave of a surface or object
- 2. Matter that allows some light to pass through
- 3. The science of light properties and behavior
- 5. Matter that allows all light to pass through
- 8. A unique 3 signal combination of dots and dashes codes for each letter of the alphabet
- 9. The bending of a wave when it passes through a slit or around an edge