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Learners place their hands on different metals and use an ammeter to monitor the flow of electricity from one metal to another.

Learners observe working lava lamps to understand how they work (included in PDF link).

Learners observe two joined glass tubes containing a conductive salt solution. Electrodes are passing an electric current through the water.

Learners build a simple one-cell battery and use an ammeter to measure the flow of current.

Using electrolysis, learners produce hydrogen gas and oxygen gas from water molecules in a solution.