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    U.S. Department of Energy's Office of Energy Efficiency and Renewable Energy
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    In this activity, learners design, build and test wind turbines. Learners go through the design process and use the scientific method to test important blade variables. Learners then use this data...

    Over $20 per group Ages 8 - 18 2 to 4 hours
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    Twin Cities Public Television
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    In this activity, learners identify different plastics in a mystery bag. Learners discover that plastics are classified #1 through #7. Learners then categorize plastics based on characteristics...

    $1 - $5 per group Ages 8 - 14 45 to 60 minutes
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    Museum of Science Boston
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    Using a vertical wind tube and using simple materials, individuals and groups attempt to design a "satellite" that floats for at least 5 seconds. There are many variables the learners can...

    $1 - $5 per student Ages 4 - adult 30 to 45 minutes
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    Lawrence Hall of Science
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    Scientists use enormous wind tunnels to test the design of planes, helicopters, even the Space Shuttle. In this simulation activity, learners create a miniature wind tunnel test by blowing air with...

    $5 - $10 per group Ages 6 - 14 10 to 30 minutes
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    The Exploratorium
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    Wheels aren't the only things that can "roll" objects that are placed on top of it. Make non-intuitive shapes from cutouts and a compass to demonstrate this.

    1 cent - $1 per student Ages 6 - 18 5 to 10 minutes
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    Children's Museum of Indianapolis
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    In this activity, learners explore the history of making objects from glass and artistry of Dale Chihuly. Learners visit an online "hot shop" to discover how glass is transformed into...

    $10 - $20 per group Ages 8 - 11 1 to 2 hours
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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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    Museum of Science Boston
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    Design a vessel that tests the limits of wind power given a set of off the shelf and recycled materials. Great with groups or individuals, but make sure you have a "body of water" to test...

    1 cent - $1 per student Ages 6 - adult 30 to 45 minutes
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    New York Hall of Science
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    What's a more compelling problem to solve than being stranded on a deserted island? Would you be like the doctor from Gilligan's Island and design your way out of your situation or would...

    1 cent - $1 per student Ages 6 - adult 30 to 45 minutes
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    Science Museum of Minnesota
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    In this activity, learners construct drawing machines using a cup, some markers, and a cricket to control the movement. A programmed LEGO RCX or Cricket is required for this high-tech version. See...

    $1 - $5 per student Ages 8 - 14 45 to 60 minutes

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The Nature of Technology Subject