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    In this activity, learners create their own experiment and test which of 4 mixtures of household chemicals turn pennies green over 5 days. This is a great introduction to basic chemical reactions,...

    $5 - $10 per group Ages 8 - 14 1 to 7 days
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    In this design challenge, learners design a storm drain cover that catches litter to protect waterways to learn about how local actions can have system-level effects. Learners will test their...

    $5 - $10 per student Ages 6 - 14 45 to 60 minutes
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    In this design challenge, learners will create wind-powered contraptions to transport a load, such as a cupcake or another small object, and test to see if they work. This activity is a great...

    $5 - $10 per student Ages 6 - adult 30 to 45 minutes
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    In this design challenge, learners will use microbes to design and grow a custom biomaterial at home and make something creative with it. This biomaterial is made by the millions of living yeast...

    $5 - $10 per student Ages 8 - adult 1 to 7 days
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    In this activity, learners build a simple solar oven out of household materials to melt chocolate and marshmallow between graham crackers--known as s'mores. This box and foil solar oven is a...

    $5 - $10 per group Ages 8 - 14 1 to 2 hours