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    The Exploratorium
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    In this activity, learners build a simple electrolysis device. Then learners use an indicating solution to visualize hydrogen and oxygen molecules in water.

    $5 - $10 per student Ages 11 - 18 45 to 60 minutes
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    The Exploratorium
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    In this activity, learners construct a simple electrolysis device. With this device, learners can decompose water into its elemental components: hydrogen and oxygen gas. Bubbles emanating from...

    $5 - $10 per student Ages 14 - 18 4 to 24 hours