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    Community Science Workshop Network
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    In this activity, learners experiment with hydrogen peroxide, vinegar, yeast, and baking soda to produce hot and cold reactions. Use this activity to demonstrate exothermic and endothermic...

    $5 - $10 per student Ages 8 - 18 10 to 30 minutes
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    4-H
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    In this activity, learners create a colorful foam fountain by adding yeast to a chemical reaction. This activity introduces chemical reactions to young learners and teaches the concept of catalysts...

    $5 - $10 per group Ages 4 - 11 10 to 30 minutes