| A | B |
| volt | This is a unit used to measure the amount of pressure in an electric current. |
| battery | A device that stores electricity. |
| electric current | The flow of electrons. |
| electron | One of the three main parts of an atom. It has a negative charge. |
| fuse | An object that prevents too much current from flowing through a circuit. |
| proton | One of three main particles that make up an atom. It carries a positive charge. |
| conductor | A substance through which electricity can flow. |
| direct current | Current that flows only in one direction. |
| circuit | The path along which an electric current flows. |
| insulator | A substance that does not allow electrons to flow through it. |
| parallel circuit | An electrical circuit that has more than one conductor such as a light, connected one after another which enables the electricity to go through each one. |
| conduction | The movement of electricity through a substance. |
| electricity | A collection of electrons or the movement of electrons. |
| static electricity | Electricity produced by charged bodies; the electrons are not moving. |
| electroscope | A device used to measure or detect a static electric charge. |
| series circuit | A circuit in which the current is the same through each part. If the circuit is broken, such as a switch being opened, the current will be stopped. |
| parallel circuit | This circuit contains 2 or more separate parts of sections, if one branch is broken such as by a switch being opened, the current will still flow to the other parts. |
| current | The movement of a charge in a conductor. |