On a breadboard, the positive side is all connected, so are the negative sides. In the middle, the holes on the number side are all connected. But, the thing in the middle is called the ravine and energy can’t pass through the ravine. We also added wires and lightbulbs to it. The battery’s two sides were on opposite sides. One was on the negative one and one was on the positive one. The lightbulb stretched across the ravine so that the power could pass from one side to another.

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