Across
- 3. _______ moves along the direction of the wave
- 4. _______ is half the distance between trough and crest
- 6. _______ is one wave on top of another
- 7. _______ is the top of a wave
Down
- 1. What is moving air?
- 2. _______ moves in right angles to the direction of the wave
- 5. _______ is the bottom of a wave