| A | B |
| wind instruments | saxophone, clarinet |
| length of sound wave | from center of one compression to the center of the next |
| solid | sound travels fastest through this state of matter |
| slinky | example of a compression wave |
| sound | made when matter moves |
| vibration | moving back and forth quickly |
| wind instruments make sound | air inside them vibrates |
| catches the sound waves | outer ear |
| middle ear | tiny bones (hammer, anvil, stirrup) are found here |
| eardrum | sound waves hit this and make the tiny bones vibrate |
| inner ear | liquid moves tiny hairs; hairs are attached to nerves then to brain |
| softer sound | hitting a drum lightly |
| louder sound | blowing hard into a whistle |
| higher pitch | object vibrates more quickly |
| lower pitch | object vibrates more slowly |
| air molecules are farther apart | sound waves travel slower through air |
| particles in solids are closer together | hear sound fastest through solids |