Across
- 3. a traveling disturbance that moves through space and matter
- 5. light can travel through
- 7. light can't travel through
- 8. light bouncing off a surface
- 9. existing in nature
- 11. the form of energy that allows us to see things
Down
- 1. white light traveling through a prism
- 2. light changing speed and direction
- 4. only some light can travel through
- 6. not curved
- 10. man-made, not natural