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    NASA
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    In this activity, learners build water-propelled engines from soft drink cans. Water flowing out of holes in the can cause the can to rotate in the direction opposite to the stream, explained by...

    $1 - $5 per group Ages 4 - 14 30 to 45 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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    Community Science Workshop Network
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    In this activity, learners explore moving air and the physics of lift and drag by constructing homemade wind tunnels. Use this activity to illustrate Newton's Second Law of Motion (F=ma) and...

    $10 - $20 per group Ages 6 - 11 1 to 2 hours
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    NASA
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    In this activity, learners build a sled kite that models a type of airfoil called a parawing. Learners keep a journal on the behavior of the kite and test different variables (tail, tail length,...

    $1 - $5 per student Ages 6 - 11 1 to 2 hours
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    Lawrence Hall of Science
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    Learners discover that soap can be used to power a boat. Learners make a simple, flat boat model, put it in water, and then add a drop of detergent at the back of the boat. The soap changes the...

    $1 - $5 per student Ages 4 - 14 10 to 30 minutes
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    WGBH
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    In this dynamic activity, learners build a catapult that launches projectiles, such as marshmallows. Participants then design and build their own models using the steps of the design process to...

    1 cent - $1 per group Ages 6 - 11 30 to 45 minutes
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    Lawrence Hall of Science
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    Learners cut and fold a paper helicopter from the template in this PDF. They practice twirling the helicopter and observe what happens as they modify their tries. The modifications can include...

    1 cent - $1 per student Ages 4 - 14 10 to 30 minutes
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    Community Science Workshop Network
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    In this activity, learners build a hot air balloon using just a few sheets of tissue paper and a hair dryer. Use this activity to demonstrate how hot air rises due to density and how the volume of...

    $1 - $5 per student Ages 6 - 18 30 to 45 minutes
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    Community Science Workshop Network
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    In this activity, learners build helicopters and launchers using wooden dowels and scrap paper. Use this activity to explore rotational motion and kinetic and potential energy. Note: this activity...

    $5 - $10 per student Ages 6 - 14 45 to 60 minutes
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    Oregon Museum of Science and Industry
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    Learners design, build, and test models of "dragon boats" made from up to three milk cartons. They observe how well the boats can be pulled through water in a homemade testing tank, and...

    $5 - $10 per group Ages 4 - 14 30 to 45 minutes

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