| A | B |
|---|
| Vary | means change |
| Sound | something you hear. Produced by vibrations. |
| Silence | absence of all sound |
| Pitch | how high or low a sound is |
| volume | how loud or soft a sound is |
| Timbre | the quality of the sound |
| Vibrate | to move rapidly back and forth |
| Waves | the way sound travels |
| Sound energy | sound waves are vibrations that carry this through matter. |
| Sound source | Sounds move outward from this in all directions |
| How can sound waves travel? | through solids, liquid and gas. |
| Traveling sound waves from fastest to slowest | 1. Solids, 2. Liquid, 3. Air / Gas |
