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Learners observe an electrochemical cell constructed from a small jar containing zinc and copper strips immersed in separate solutions. The strips are connected to a motor that turns a small fan. Learners observe that chemical reactions can produce electricity. This is a one-cell battery, so only creates a small amount of power. Batteries are usually collections of many cells to produce greater amounts of power. This is written as a display, but can easily be adapted for learners to build their own electrochemical reactions.
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