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    Integrated Teaching and Learning Program, College of Engineering, University of Colorado at Boulder
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    In this design-based lesson, learners study flood dynamics as they modify a riverbed with blockages or levees to simulate real-world scenarios. Learners will learn about floodplains, consider...

    Over $20 per group Ages 11 - 14 1 to 2 hours
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    American Museum of Natural History
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    Learners observe two model atmospheres -- one with normal atmospheric composition and another with an elevated concentration of carbon dioxide. These two model atmospheres are exposed to light...

    $5 - $10 per group Ages 14 - 18 45 to 60 minutes
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    University of Illinois Urbana-Champaign
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    In this activity, learners use three types of cheesy snacks--cheese balls, cheese puffs, and Cheetos--to learn about polymers. This activity introduces learners to basic concepts and vocabulary of...

    $5 - $10 per group Ages 14 - adult 30 to 45 minutes
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    Twin Cities Public Television
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    This is an activity (located on page 3 of the PDF) about the use of reduction agents to decontaminate ground water. Learners will conduct a reduction-oxidation (redox) reaction in which vitamin C...

    $10 - $20 per group Ages 8 - 14 2 to 4 hours
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    NASA
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    In this activity, learners work in NASA teams to build balloon-powered rockets using identical parts and compete to launch the greatest number of paper clips to "space" (the ceiling). The...

    $10 - $20 per group Ages 8 - 14 1 to 2 hours
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    NASA
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    In this activity, learners discover how geologists use stratigraphy, the study of layered rock, to understand the sequence of geological events. Learners use baking soda, vinegar, and different...

    $10 - $20 per group Ages 8 - 18 1 to 2 hours
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    Twin Cities Public Television
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    In this quick activity (page 1 of the PDF), learners will test how many pennies a flat paper index card bridging the gap between two stacks of books is able to support. Then, learners alter the...

    1 cent - $1 per group Ages 8 - 14 10 to 30 minutes
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    NASA
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    In this small-group activity, learners assume the roles of pilots, air traffic controllers, and NASA scientists to solve five Air Traffic Control (ATC) problems. Learners examine different distance...

    $5 - $10 per group Ages 8 - 18 1 to 7 days
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    Integrated Teaching and Learning Program, College of Engineering, University of Colorado at Boulder
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    Learners make a skydiver and parachute contraption and launch it. They see that the drag created by air resistance slows the descent of skydivers as they travel back to Earth. This activity can be...

    1 cent - $1 per group Ages 11 - 18 30 to 45 minutes
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    NASA
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    In this activity, learners evaluate the potential performance of air rockets placed inside a wind tunnel. Learners measure the rocket's resistance to the flow of air in the tunnel and use the...

    Over $20 per group Ages 8 - 18 45 to 60 minutes

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