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    Wellcome Trust Sanger Institute
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    In this activity, learners create an origami model of DNA, demonstrating its double helix structure. Two templates are available as PDFs: a standard template with the base pairs already colored or...

    1 cent - $1 per student Ages 8 - 18 10 to 30 minutes
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    TERC
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    In this activity, learners plan and create a 24-foot long, two-dimensional model of our solar system, and compare and contrast the differences between planets and the sun. Learners calculate the...

    1 cent - $1 per group Ages 8 - 14 45 to 60 minutes
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    The University of Texas McDonald Observatory
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    In this activity, learners observe colors in the flame of a burning candle to explore connections between matter, light, color and temperature -- basic concepts of matter and energy. Then, learners...

    $1 - $5 per group Ages 14 - 18 45 to 60 minutes
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    Twin Cities Public Television
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    This activity (on page 2 of the PDF) is a full inquiry-based challenge related to motion and design optimization. Groups of learners will use construction paper to build a model bobsled run for a...

    $1 - $5 per group Ages 8 - 14 1 to 2 hours
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    WGBH
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    In this design challenge activity, learners build a tower that can support a tennis ball at least 18 inches off the ground while withstanding the wind from a fan. Learners will build a sturdy frame...

    1 cent - $1 per student 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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    Lunar and Planetary Institute
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    In this activity, learners shrink the scale of the vast solar system to the size of their neighborhood. Learners are challenged to consider not only the traditional "planets," but also...

    Over $20 per group Ages 8 - 14 45 to 60 minutes
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    Integrated Teaching and Learning Program, College of Engineering, University of Colorado at Boulder
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    Learners work in teams to design and build solar water heating devices that mimic those used in residences to capture energy in the form of solar radiation and convert it to thermal energy. This...

    $10 - $20 per group Ages 14 - 18 1 to 7 days
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    Oregon Museum of Science and Industry
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    In this activity about dinosaurs and survival, learners use scrap materials to create a miniature dinosaur habitat that includes a food source, water source, and shelter. This resource includes...

    $1 - $5 per group Ages 4 - 6 10 to 30 minutes
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    American Society for Microbiology
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    Learners act as nucleotides as they build a human model of DNA. Learners' hands represent the 3' and 5' locations of the hydroxyl and triphosphate groups of each nucleotide. Learners...

    $10 - $20 per group Ages 14 - 18 10 to 30 minutes

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