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    Worcester Polytechnic Institute
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    Learners work in pairs to create three simple types of bridges, a beam bridge, an arch bridge, and a suspension bridge. They will observe how the bridges work under load and discover why engineers...

    $1 - $5 per group Ages 11 - 14 1 to 2 hours
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    Mount Holyoke College
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    In this chemistry investigation, learners combine common cooking substances (flour, baking powder, sugar, salt, pepper, oil, water, food coloring) to explore mixtures. Both homogeneous (whole thing...

    $10 - $20 per student Ages 4 - 8 10 to 30 minutes
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    WGBH
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    In this activity, learners design, build and test a model suspension bridge for sturdiness and strength. Participants explore how parts of the bridge, such as the deck, hangers, cables, towers and...

    $1 - $5 per group Ages 6 - 11 30 to 45 minutes
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    American Chemical Society
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    In this activity on page 9 of the PDF, learners make their own paint using chalk as a pigment and glue and water as binders. This activity introduces learners to special mixtures called suspensions...

    $1 - $5 per student Ages 6 - 11 10 to 30 minutes
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    4-H
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    In this activity, learners explore the engineering design process and the basic mechanics behind building bridges as they build one themselves using gumdrops and toothpicks. After building their...

    $5 - $10 per student Ages 8 - adult 30 to 45 minutes