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    WGBH
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    In this physics activity, challenge learners to make and race a balloon-powered car. Learners construct the body out of a paper cup, wheels out of wooden spools. and fuel tank out of a balloon....

    $1 - $5 per student Ages 6 - 11 5 to 10 minutes
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    Lunar and Planetary Institute
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    In this activity, teams of learners study magnetic fields at four separate stations: examining magnetic fields generated by everyday items, mapping out a magnetic field using a compass, creating...

    Over $20 per group Ages 8 - 14 45 to 60 minutes
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    Berkeley Natural History Museums
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    Learners measure irregularly shaped bones using a variety of measurement methods and tools. Then, they measure again using standard conventions and metric tape measures. Learners understand the...

    $5 - $10 per group Ages 11 - 18 45 to 60 minutes
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    Sciencenter
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    In this chemistry challenge, learners systematically investigate which combination of four solutions produces a deep red color. The four solutions are iron(III) chloride, ammonium thiocyanate,...

    $10 - $20 per group Ages 11 - 18 10 to 30 minutes
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    Oregon Museum of Science and Industry
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    In this activity, learners discover that atoms and ions of different metals will change places. Learners place drops of copper sulfate solution onto a steel nail, then observe as the solution loses...

    1 cent - $1 per group Ages 11 - adult Under 5 minutes
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    National Wildlife Federation
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    In this activity, learners explore the web of connections among living and non-living things. During this activity, learners have an opportunity to think about many different interactions within an...

    1 cent - $1 per group Ages 4 - 14 30 to 45 minutes
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    American Association for the Advancement of Science
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    Learners model the ocean currents that carry hot water from the tropics to northern latitudes. By placing small containers of hot and cold water inside a larger container of cold water, learners...

    $1 - $5 per group Ages 8 - 11 10 to 30 minutes
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    The Science House
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    In this chemistry demonstration, learners investigate the factors that increase the rate of dissolution for a solid. Learners will compare how crushing sugar cubes, stirring and water temperature...

    1 cent - $1 per group Ages 11 - 18 5 to 10 minutes
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    Computer Science Unplugged
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    This activity about cryptographic techniques illustrates a situation where information is shared, and yet none of it is revealed. A group of learners will calculate their average age without anyone...

    1 cent - $1 per group Ages 11 - adult 5 to 10 minutes
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    COSI
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    In this yummy activity about soil (page 9 of PDF), learners will create layers of soil using food. They will learn about the composition and role of each layer. Though this was created as a post...

    $1 - $5 per student Ages 8 - 11 30 to 45 minutes

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