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    American Chemical Society
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    In this activity on page 2 of the PDF, learners conduct chemical tests on certain powders used in cooking. After completing the tests, learners try to figure out the identity of a mystery powder....

    $10 - $20 per student Ages 8 - 14 45 to 60 minutes
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    WGBH
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    In this hands-on activity, learners determine the types of chemical reactions achieved when combining different household products. Learners explore the reactions using the steps of the scientific...

    $5 - $10 per group Ages 6 - 11 45 to 60 minutes
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    Oregon Museum of Science and Industry
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    Learners use a commercially available toy to experiment with density. They fill a chamber in the toy submarine with baking powder and release it into a tank of water. The material making up the...

    $1 - $5 per group Ages 4 - 14 5 to 10 minutes
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    Oregon Museum of Science and Industry
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    This activity uses turmeric, a common spice in curry, as an indicator for acidity and basicity. Turmeric is yellow in acid and neutral substances, but turns bright red with bases. Learners can use...

    $1 - $5 per student Ages 11 - 14 10 to 30 minutes