| A | B |
|---|
| energy of motion | energy that moving objects have |
| electric charges | tiny bits of electricity in all matter |
| electric current | the movement of electric charges from one place to another |
| circuit | the path along which electric current moves |
| magnetism | the force around a magnet |
| electromagnet | a wire coil that becomes a magnet when electric current moves through it |
| source | a place from which something comes |
| conductor | a material that easily carries heat |
| insulator | a material through which energy cannot easily flow |
| thermostat | a tool that controls the temperature in a home or building |
| reflect | to turn back |
| visible spectrum | the band of colors formed when a wave of white light is bent |
| prism | a clear piece of glass or plastic that is shaped like a triangle and cn be used for separating white light |
| lens | a piece of glass or other clear material that bends light waves that pass through it |
| pupil | the opening in the center of the eye that lets in light |
| iris | the colored part of the eye |
| image | a copy or likeness |
