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    WGBH
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    In this simple and fun activity, learners discover the relationship between vibration and sound by making a squeaky toy instrument out of simple household materials. Participants explore how...

    1 cent - $1 per student Ages 6 - 11 10 to 30 minutes
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    Computer Science Unplugged
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    In this outdoor activity, learners use pegs (like tent pegs) and string or elastic to simulate drill sites and roads in Northern Canada. Learners are challenged with figuring out how to connect the...

    $5 - $10 per group Ages 11 - 18 30 to 45 minutes
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    Computer Science Unplugged
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    This activity lets learners participate in the process of reconstructing a phylogenetic tree and introduces them to several core bioinformatics concepts, particularly in relation to evolution....

    1 cent - $1 per group Ages 8 - 18 30 to 45 minutes
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    National Park Service
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    In this online interactive, learners first explore the great American inventors and their inventions as well as the role of the National Park Service. Then, learners investigate how Edison's...

    free Ages 4 - 14 5 to 10 minutes