| A | B |
|---|
| transparent | lets all light through |
| translucent | lets some light through |
| opaque | lets not light through and creates a shadow |
| contract | get smaller |
| expand | get bigger |
| volume | how loud or soft a sound is |
| pitch | how high or low a sound is |
| vibration | quick back and forth needed to create sound |
| insulator | material that heat cannot travel through easily |
| conductor | material that heat can travel throug easily |
| heat | energy used to make matter warmer |
| temperature | how hot or cold something is |
| degree | unit of measure for temperature |
| reflect | when light bounces off of an object |
| refract | when light bends as it passes from air to water |
| prism | a thick piece of glass that refracts light |
