| A | B |
|---|
| Conductor | Any material through which an electric current can easily flow. |
| Insulator | A material that does not easily allow the flow of an electric current. |
| Resistance | Anything that works against the free flow of electric current. |
| Circuit | The pathway taken by an electric current. |
| Electric current | A continuous flow of negative charges (electrons) creates this. |
| Static electricity | An electrical charge produced when rubbing causes an object to gain or lose electrons. |
| Lightning | A form of static electricity that occurs when electrical charges build up in clouds and on the ground, and are then released. |
| Chemical energy | Energy that is released by chemical reactions. |
| Mechanical energy | The energy that moves objects. |
| Battery | Produces electric current by changing chemical energy to electrical energy. |
| Magnet | A piece of metal that has an invisible magnetic field around it. |
| Series circuit | A circuit which connects several objects, one after the other, in a single path. |
| Parallel circuit | A circuit which connects several objects, but with many paths. |
| Switches | These control the flow of electricity through a circuit. |
| Iron, cobalt, and nickel | Metals that make good magnets |
| Electromagnets | Made by current flowing through wire which is coiled around a piece of iron. |
| A compass | A needle shaped magnet used for determining location or direction. |
| Volts and amps | Measurements of electricity |
| Closed circuits | Circuits that allow the movement of electrical energy. |
| Open circuits | These circuits do not allow the movement of electrical energy. |
| Electrical energy | Energy caused by the movement of electrons |
