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Learners set up three different bowls, each with a different mass of oatmeal. Learners monitor the temperature of the oatmeal and find that larger masses take longer to cool.

$1 - $5 per student Ages 8 - 18 10 to 30 minutes
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Learners attach an egg to a rubber-band bungee cord and drop the egg.

1 cent - $1 per student Ages 8 - 18 30 to 45 minutes
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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 place cut flowers in colored water and observe how the flowers change. The flowers absorb the water through the stem and leaves.

$1 - $5 per student Ages 8 - 18 1 to 7 days