| A | B |
|---|
| vibration | a back and forth movement |
| pitch | describes how high or low a sound is |
| compression wave | wave that has spaces where particles are squeezed together and spaces where particles are spread apart |
| matter | anything that takes up space and has mass |
| particles | a tiny piece of anything |
| mass | amount of matter |
| observation | using your sense to find out information |
| high pitch | made by fast vibrations |
| low pitch | made by slow vibrations |
| loudness | depends on the strength of the vibrations |
