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A circle or loop along which electric charges can flow.

Closed Circuit

A circuit that allows electricity to flow. A closed loop.

Electric Current

A flow of electric charges.

Opened Circuit

A circuit that does not allow electricity to flow. It is a broken loop!


A place to get something. An electric current source can be a battery or a wall outlet.


A very thin wire that glows and gives off light when an electric current flows through a light bulb.


This object is an example of a source of an electric current. (We connected it to the light bulb using one or two wires.)


An electric current travels through this object. (It connects the battery to the bulb.)

Light Bulb

This object receives an electric current and lights up.

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