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    New Jersey Department of Education
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    In this investigation, learners explore the force known as buoyancy by placing various objects into water and observing how they behave (for example, which sink more quickly, which float, how much...

    $1 - $5 per group Ages 8 - 14 30 to 45 minutes
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    Centers for Ocean Sciences Education Excellence
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    In this activity, learners are challenged to design a planktonic organism that will neither float like a cork nor sink like a stone. They are given pictures of planktonic organisms and simple...

    $5 - $10 per group Ages 8 - adult 30 to 45 minutes
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    The Tech
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    Based of the The Tech Challenge 2015, learners will engage in two mini-design challenges related to seismic engineering. Can be team or individually built, this challenge attempts to "raise...

    $1 - $5 per student Ages 8 - adult 30 to 45 minutes
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    New Jersey Department of Education
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    In an investigation called "Shape It!" learners craft tiny boats out of clay, set them afloat on water and then add weight loads to them, in order to explore: how objects stay afloat in...

    $1 - $5 per group Ages 8 - 14 30 to 45 minutes
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    Museum of Science Boston
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    Design a vessel that tests the limits of wind power given a set of off the shelf and recycled materials. Great with groups or individuals, but make sure you have a "body of water" to test...

    1 cent - $1 per student Ages 6 - adult 30 to 45 minutes
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    WGBH
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    In this design challenge activity, learners build a boat that can hold 25 pennies (or 15 one inch metal washers) for at least ten seconds before sinking. This competitive, hands-on activity...

    $1 - $5 per student Ages 8 - 14 30 to 45 minutes
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    NOAA
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    In this activity on page 24, learners perform experiments to examine whether or not trash can float, blow around, or wash away. Then learners analyze the effects of these characteristics on marine...

    1 cent - $1 per group Ages 6 - 14 30 to 45 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