Across
- 2. Energy that travels in waves and is visible to the human eye.
- 3. A repeating disturbance or vibration that transfers energy.
- 5. The material (solid, liquid, or gas) through which waves travel.
- 9. The bouncing back of light or sound waves when they hit a surface.
- 10. Energy that travels as a vibration through a medium like air or water.
Down
- 1. The back-and-forth motion that creates sound waves.
- 4. The bending of light as it passes through a material of different density.
- 6. How fast a wave travels through a medium.
- 7. A transparent object that separates light into its spectrum of colors.
- 8. The ability to do work or cause change; transferred through waves.