Across
- 2. What is the taking in of light or sound?
- 4. What can sound travel through?
- 6. What is the number of vibrations a wave has in a given time?
- 7. What is the bouncing back of waves off a surface?
- 9. What is the distance that any point on the wave is moved from its resting place?
- 11. What can light travel through?
- 13. What word can describe what substance will not allow light to pass through it?
- 14. Sound uses what kind of mechanical energy?
Down
- 1. Sound travels 340 meters per second depending on _________ and air temperature.
- 3. What word describe what cannot be clearly seen when light is scattered?
- 5. What kind of energy is light?
- 8. What word can describe what light can travel through without being scattered?
- 10. Light travels 300 million _________ per hour?
- 12. What is the bending of light?