Across
- 3. any matter that waves travel through
- 4. waves that move parallel (back and forth)
- 9. waves that move perpendicular (up/down)
- 10. waves that can travel through a vacuum
Down
- 1. waves that must travel through a medium
- 2. the height of a wave
- 5. the number of waves that pass a certain point
- 6. carries energy
- 7. the distance between the crests of two waves
- 8. the peak (or top) of a wave
- 9. the lowest point of a wave