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In this chemistry demonstration, learners observe a chemical reaction that produces a colorful effect.

$1 - $5 per group Ages 11 - 18 Under 5 minutes
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In this chemistry activity, learners perform three chemical reactions in a sealed zip-top bag. Learners will record their observations and classify the changes as chemical or physical.

$1 - $5 per student Ages 8 - 18 10 to 30 minutes
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In this chemistry demonstration, learners will discover that phenolphthalein is an acid/base indicator. One learner will read a poem about four witches making a potion.

$1 - $5 per group Ages 11 - 18 5 to 10 minutes