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Learners place water and part of an antacid tablet in a film canister. The reaction creates a gas reaction that launches the film canister like a rocket.

1 cent - $1 per student Ages 6 - 18 Under 5 minutes
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Learners use a candle to investigate the products of combustion. When a glass rod is held over a lit candle, the candle flame deposits carbon on the rod.

1 cent - $1 per group Ages 11 - adult 5 to 10 minutes