Across
- 2. how often a wave occurs
- 4. material through which waves can travel.
- 5. the bottom of the wave
- 8. the place on a wave that is pushed together.
- 9. how tall the wave is
- 10. wave waves that require a medium to travel.
Down
- 1. waves can travel through matter or empty space where matter is not present.
- 3. the top of the wave
- 6. the place on a wave that is moving apart.
- 7. spectrum all of the frequencies or wavelengths of electromagnetic radiation.