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    The Science House
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    In this chemistry activity, learners use common chemicals to produce carbon dioxide and observe its properties. This resource includes brief questions for learners to answer after the experiment....

    $1 - $5 per group Ages 11 - 18 5 to 10 minutes
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    The Science House
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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. Four learners will act out...

    $1 - $5 per group Ages 11 - 18 5 to 10 minutes
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    The Science House
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    In this chemistry activity, learners use spaghetti to explore density and chemical reactions. Learners will discover how a solution of baking soda and vinegar can make spaghetti float and even ...

    $1 - $5 per group Ages 6 - 18 5 to 10 minutes
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    Mount Holyoke College
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    This activity teaches combustion as the interaction of a fuel source and oxygen. A burning candle is observed, then extinguished—first by a glass cup placed over it to cut off the oxygen supply,...

    $1 - $5 per student Ages 4 - 8 5 to 10 minutes
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    The Exploratorium
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    Ocean acidification is a problem that humans will have to deal with as we release more and more carbon dioxide into the atmosphere. This activity demonstrates how water can become acidic with the...

    $1 - $5 per student Ages 8 - 18 5 to 10 minutes