Across
- 4. Allows no light to pass through
- 7. Cut glass that breaks white light into the light spectrum
- 10. It travels in a straight line
- 12. When light can't pass through an object it creates this
- 13. Light or sound going into a surface
- 14. Allows some light to pass through but with disturbance
- 15. Travels faster in warmer temperatures than it does in cold
- 17. The number of times an object vibrates per second
- 19. Sound travels around 5000 m/s through this
- 21. the bending of light.
- 22. made up of all the colors of the rainbow
- 23. Sound must have this to travel through
Down
- 1. there is no sound here
- 2. Causes all sound
- 3. reflects all colors
- 5. How high or low a sound is.
- 6. Allows almost all light to go through
- 8. Loud or soft
- 9. Sound travels around 350 m/s in this
- 11. Sound travels around 1500 m/s in this
- 16. absorbs all colors
- 18. the bouncing of light from a surface
- 20. A reflected sound wave.