Across
- 2. high density area
- 4. the direction from one crest of the wave to the next crest
- 6. wave that moves matter perpendicular to the directions of the wave
- 8. low density area
- 9. can be a solid, liquid, or gas
Down
- 1. displace matter in the same direct that the wave is traveling
- 3. high points of a wave
- 4. we see light waves, hear sound waves, use microwaves,and maybe energy
- 5. low point of a wave
- 7. the direction from the rest point to the crest, or from the rest position to the trough