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The Challenge: Recharge a Battery

If we want to maintain the flow of electrons we would need some sort of electrical pump. This is essentially what a battery does. It 'pulls' electrons from one end of a wire and pushes them to the other end. The energy to drive this flow is provided by chemical reactions within the battery.



Electrons flowing through the filament of the bulb cause it to become warm and emit light.

Electron flow from battery to a light bulb