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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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    NISE Network
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    In this activity, learners investigate what happens when you build up static electricity on plastic balls. Learners discover that electrostatic forces cause smaller balls to suspend in a tube,...

    $10 - $20 per group Ages 4 - adult 5 to 10 minutes
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    Astronomical Society of the Pacific
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    This fun and simple hands-on astronomy activity lets learners imagine what would happen if our Sun were replaced with a black hole. Using a bucket with stretchy fabric over it, this activity allows...

    $10 - $20 per group Ages 6 - adult 10 to 30 minutes
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    American Educational Products
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    In this activity, learners create a map of a hidden surface using a "sounding stick" -- a technique similar to how underwater maps were once made. The hidden surface is created using...

    Over $20 per group Ages 4 - adult 10 to 30 minutes