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    University of Washington
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    In this activity about olfaction (7th activity on the page), learners use natural ingredients to concoct their own perfume. This resource contains three different perfume recipes and a link to...

    $1 - $5 per group Ages 8 - 18 4 to 24 hours
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    PBS
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    In this math lesson, learners use the setting of a flower-making fundraiser to explore a variety of patterns. Learners examine the patterns in a flower design made of triangles surrounding a square...

    $1 - $5 per group Ages 6 - 11 1 to 2 hours
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    Mount Holyoke College
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    In this activity with several mini experiments, learners explore the chemistry that helps scientists learn about the environment and how they can help save it. Learners will determine if pollutants...

    $1 - $5 per group Ages 8 - 14 4 to 24 hours