Circuit, The path along which electricity travels., Components, The different parts of the circuit. E.g. battery, bulb, wire., Switch, Allows the flow of electricity to be turned on and off., Insulator, Prevents electricity from flowing., Conductor, Allows electricity to flow., Circuit diagram, Symbols are used for components instead of pictures., Complete circuit, Electricity can only travel if there are no gaps in the circuit and there is power., Current, A flow of electricity., cell, A device, such as a battery, that is capable of changing some form of energy into electricity

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