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    WGBH
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    In this activity, learners use tinfoil to build and test their own boats - which designs will float, and which will sink? Learners must adjust many variables in their boat design to maximize...

    1 cent - $1 per student Ages 6 - 11 45 to 60 minutes
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    WGBH
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    In this water activity, learners build boats that float and sink. First, learners listen to the book, "Who Sank the Boat" and practice making predictions throughout the story. Then,...

    $5 - $10 per group Ages 4 - 6 45 to 60 minutes
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    WGBH
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    In this design challenge activity, learners investigate series circuits and motors to build a hand-held "kick stick." Their goal is create a battery-operated device that sends a Ping-Pong...

    $5 - $10 per student Ages 8 - 14 45 to 60 minutes
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    WGBH
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    In this design challenge activity, learners invent a pinball-like game where a kick stick hits a ping pong ball into a target that buzzes. This detailed guide includes step-by-step instructions on...

    $10 - $20 per student Ages 8 - 14 45 to 60 minutes
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    WGBH
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    Make your own "Dance Dance Revolution" dance pad! In this design challenge activity, learners work in teams to build a dance pad that lets you use your feet to sound a buzzer or flash a...

    $10 - $20 per group Ages 8 - 14 45 to 60 minutes
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    American Chemical Society
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    In this activity on page 10 of the PDF, learners detect the amount of energy that can flow through a sodium chloride electrolyte solution with a light sensor. Learners construct an electrolyte...

    $5 - $10 per student Ages 8 - 14 45 to 60 minutes
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    WGBH
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    In this hands-on engineering project, kids use two simple machines, levers and inclined planes, to construct their own pinball machines. Using the engineering design process and easy-to-find...

    $1 - $5 per student Ages 6 - 11 30 to 45 minutes
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    WGBH
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    This fun activity uses simple materials such as milk cartons and mirrors to introduce the ideas of optics and visual perception. The project is easy to do, however adult assistance may be needed to...

    $1 - $5 per student Ages 6 - 11 10 to 30 minutes
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    WGBH
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    In this design challenge activity follow up to "Kicking Machine", learners add a hands-free feature to their Kicking Machine. Learners modify their kicking machine to have it either...

    $5 - $10 per student Ages 8 - 14 30 to 45 minutes
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    NISE Network
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    In this demonstration, learners discover that nanoparticles behave differently, in part because they have a high surface area to volume ratio. Learners learn that smaller particles have a much...

    Over $20 per group Ages 6 - adult 10 to 30 minutes

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