| A | B |
|---|
| energy | what makes matter move or change |
| heat | a kind of energy that can change matter's state |
| fuel | something that gives off heat when it burns |
| light | a kind of energy that lets us see |
| reflect | to bounce off an object |
| refraction | when light bends as it passes through something |
| sound | a kind of energy that you hear |
| vibrate | to move back and forth |
| pitch | how high or low a sound is |
