Across
- 1. sound waves are always ____
- 3. areas where the particles are further apart
- 6. in the___ the wave gets amplified
- 8. areas where the particles are close together
- 9. what is the distance from compression to compression called
Down
- 2. when sounds travels, a ____ moves through the air molecules, causing them to vibrate
- 4. The part of the brain that processes the electrical impulses as sounds
- 5. the cochlea sends electrical ____ to the brain
- 7. air molecules collide with the ear drum and cause it to ____ at the same frequency