| A | B |
| temperature | the measure of how hot or cold something is |
| thermal energy | a form of energy that moves between objects because of differences in temperature |
| heat | the movement of thermal energy |
| conduction | the movement of thermal energy (heat) between objects touching each other (cooking food in a pan) |
| conductor | an object that heat moves through easily (metals like iron & aluminum) |
| insulator | an object that doesn't conduct heat (wood, cloth, plastic) |
| reflection | the bouncing of light off an object |
| refraction | the bending of light as it moves from one material to another |
| shadow | a dark area that forms when an object blocks the path of light |
| absorbed | something taken in by an object |
| opaque | objects that DON'T let light pass through them |
| transparent | objects that let most light pass through them (windows) |
| translucent | objects that let some light pass through them (frosted glass/some bulbs) |
| vibrations | back and forth movements. when air vibrates, your hear sound. |
| loudness | the measure of how much energy sound has (volume) |
| pitch | how high or low sound is (high/flute, low/tuba) |
| sound moves farther and faster | through liquids and solids |
| prism | bends/refracts light into different colors |
| rainbow | water droplets act like tiny prisms in the air to separate the colors in the water |