Switch - A device for closing or opening a circuit, Lamp holder - A device in a circuit for holding a lamp in place, Cell - Something that pushes electricity around a circuit, Insulator - cannot conduct electricity, Wire - A component where electricity in the circuit, Brighter - What happen if i increase the number of battery to the bulb?, Dimmer - What happen if i decrease number of battery to the bulb, Conductor - Can conduct electricity,

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