Circuit: The complete path that an electric current follows, including the energy source.
Conductor: A substance that transfers heat, electricity, or sound. Copper wire is a good conductor of electricity.
Current: The rate of flow for an electric charge. In other words, how much electricity is flowing. A strong current means that a lot of electricity is flowing.
Electricity: A form of energy caused by the flow of electrons that occurs naturally and can be transferred through conductive materials such as wires.
Load: An electrical component or portion of a circuit that consumes power. This could be a TV, oven, computer, or anything else powered by electricity.
Switch: A small device that starts or stops the flow of electricity when pressed or moved up or down.