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    American Chemical Society
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    In this activity, learners will develop a method to test five similar-looking powders (baking soda, baking powder, cream of tartar, detergent, and cornstarch) with four test liquids (water, vinegar...

    $1 - $5 per group Ages 6 - 14 45 to 60 minutes
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    WGBH
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    In this fascinating and fun experiment, learners use chemistry to identify a mystery powder and to solve a "crime," a process similar to that used by real forensic scientists. Learners...

    $5 - $10 per group Ages 6 - 11 45 to 60 minutes

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