Across
- 1. ray
- 3. mechanical
- 6. how often
- 8. how long
- 9. the bottom of wave
- 12. Bends light
- 13. blurry window
- 15. height of the wave
- 18. wavelength
- 19. Heats food
- 24. Reflects not clear light
Down
- 2. energy without a medium
- 4. the vibration
- 5. Visible light
- 7. colors
- 10. 3D separates light
- 11. energy
- 14. Music waves
- 16. time it takes
- 17. Perpendicular waves
- 20. energy with a medium
- 21. short wavelength
- 22. Reflects light
- 23. top point
- 24. Let light in