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    IEEE
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    In this activity, learners explore trebuchet design. Teams of learners construct trebuchets from everyday materials. They then test their trebuchets to determine the farthest distance they can hit...

    $10 - $20 per group Ages 11 - 18 1 to 2 hours
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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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    NASA
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    In this Engineering Design Challenge activity, learners will use balloons to investigate how a multi-stage rocket, like that used in the Interstellar Boundary Explorer (IBEX) mission, can propel a...

    $1 - $5 per student Ages 8 - adult 10 to 30 minutes
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    NASA
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    In this activity, learners construct a simple air pressure launcher for paper rockets. Learners stomp or jump on an empty 2-liter bottle and force the air inside through connected plastic pipes to...

    $10 - $20 per group Ages 4 - 14 1 to 2 hours
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    Children's Museum Of Houston
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    Use a homemade potato launcher to explore air pressure. This activity includes simple instructions on how to build a homemade propulsion pipe using pipe, a wooden dowel and duct tape. The activity...

    $5 - $10 per student Ages 8 - 14 10 to 30 minutes
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    NASA
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    In this activity, learners simulate a multistage rocket launch using party balloons, fishing line, straws, and a plastic cup. Educators can use this activity to explain how inventors have refined...

    $1 - $5 per student Ages 8 - 18 45 to 60 minutes
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    The Exploratorium
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    In this activity, learners construct their own small catapults using simple materials. Learners follow visual instructions to build their launching device. This activity can be used as a lesson on...

    $10 - $20 per student Ages 8 - 18 1 to 2 hours
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    Science Museum of Minnesota
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    Experiment with force and pressure by building a balloon rocket. When launched, the balloon will run a track wherever you place the string. All you need is a balloon, clothespin, a straw, some tape...

    1 cent - $1 per student Ages 4 - 11 30 to 45 minutes
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    Twin Cities Public Television
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    This is an online Flash game where learners can experiment with ballistics and how to compensate for the varying levels of gravity found on the planets of our Solar System. Their mission: set the...

    free Ages 6 - 14 5 to 10 minutes
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    WGBH
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    Hooray! In this design challenge activity, learners invent a device that launches a spoonful of confetti into the air. Learners are encouraged to create the biggest cloud of confetti possible....

    $5 - $10 per group Ages 8 - 14 30 to 45 minutes

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