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    Pratt School of Engineering, Duke University
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    Learners work in groups to design and build a tower out of balsa wood. As a motivator, they can compete to build a tower with the highest strength-to-weight ratio. Learners draw structurally sound...

    $5 - $10 per group Ages 11 - 14 1 to 2 hours
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    Twin Cities Public Television
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    This activity (located on page 3 of the PDF) is a full inquiry investigation into Bernoulli’s principle and airplane wings. Learners will design and build their own airplane wing models out of...

    $5 - $10 per group Ages 8 - 14 45 to 60 minutes
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    Astronomical Society of the Pacific
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    This fun and simple hands-on astronomy activity lets learners make 3-dimensional models of the Earth and Moon. Using the Sun's light, learners will discover that the Moon rotates in the same...

    $5 - $10 per group Ages 6 - adult 10 to 30 minutes
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    Twin Cities Public Television
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    In this quick activity (located on page 2 of the PDF), learners will model how wetlands act as natural filters for the environment. Learners prepare a mixture of water, soil, gravel, and leaves and...

    $5 - $10 per group Ages 8 - 14 10 to 30 minutes
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    NCTM Illuminations
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    In this math activity, learners are challenged to create aluminum foil boats that will hold plastic bears until the boats sink. The lesson serves as a fun, hands-on way to collect data. Data from...

    $5 - $10 per group Ages 8 - 14 45 to 60 minutes
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    Lunar and Planetary Institute
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    In this activity, learners simulate what happens to a human spine in space by making Sponge Spool Spines (alternating sponge pieces and spools threaded on a pipe cleaner). This represents a human...

    $5 - $10 per group Ages 8 - 14 10 to 30 minutes
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    Community Science Workshop Network
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    In this activity related to Newton's Laws of Motion, learners build a boat powered by a propeller in the air. The airboats can be designed in many ways and can include various recyclables like...

    $5 - $10 per student Ages 8 - 18 45 to 60 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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    Community Science Workshop Network
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    In this activity, learners build a bird that flies in place with help from a motor, wire, and some straws. This engineering activity introduces learners to circuits and motors, automata, and...

    $5 - $10 per student Ages 6 - 14 30 to 45 minutes
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    NOAA
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    In this activity, groups of learners work together to create edible models of chemicals involved in autotrophic nutrition. Learners use candy to represent elements involved in the chemical...

    $5 - $10 per group Ages 14 - 18 1 to 2 hours

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