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In this activity about combustion and energy, learners observe a burning candle in a sealed jar and the burning of white sugar.

$1 - $5 per group Ages 8 - 14 45 to 60 minutes
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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.

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