Circuit - a complete circle of joined up wires and components, Series - two or more bulbs one after the other in a circuit, parallel - two or more bulbs on different branches of a circuit, electrons - tiny particles which carry energy around a circuit, Current - the flow of electrons around a circuit, voltage - the energy used by a bulb, resistance - something which slows down the current, ammeter - a device which measures the current, cell - a component which gives energy to electrons, amps - the unit that current is measured in.,

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