Science Circuit Challenge

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I noticed in this experiment that the current stayed the same across the whole circuit. However the voltages were different. The voltage on light bulb 2 was larger since it was closer to the battery while light bulb 1 was smaller and farther away. When I added up the voltages on the light bulbs we had the amount the battery had which made sense to me. The farther you get away from the energy the lower voltage it has .