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    In this environmental engineering activity, learners build windmills using everyday items. The first challenge is to build windmills that spin when placed in front of a fan. The second challenge is...

    $10 - $20 per group Ages 8 - 14 2 to 4 hours
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    This activity (on page 2 of the PDF SciGirls Activity: Milk Carton Boat) is a full inquiry investigation into boat hull design. Groups of learners will use empty half-pint milk cartons to fashion...

    $10 - $20 per group Ages 8 - 14 4 to 24 hours
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    This activity (on page 2 of the PDF under SciGirls Activity: Kites) is a full inquiry investigation into how a kite’s shape affects its performance. Groups of learners will select or construct...

    Over $20 per group Ages 8 - 14 1 to 2 hours
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    This activity (on page 2 of the PDF under SciGirls Activity: Luge) is a full inquiry-based challenge related to motion and design optimization. Groups of learners will use construction paper to...

    $1 - $5 per group Ages 8 - 14 1 to 2 hours
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    This activity (on page 2 of the PDF under GEMS Activity) is a full inquiry investigation into technology design and testing. Groups of learners will design, build, and program a LEGO robot to...

    Over $20 per group Ages 8 - 14 2 to 4 hours
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    This activity (located on page 3 of the PDF under GPS: Garbology Activity) is a full inquiry investigation into design optimization using recycled materials. Groups of learners will design a study...

    Over $20 per group Ages 8 - 14 1 to 2 hours
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    In this activity (on page 2 of the PDF under GPS: Luge Activity), learners will construct a model hovercraft out of an empty spool and a piece of cardboard. A balloon provides the air pressure...

    1 cent - $1 per student Ages 8 - 14 45 to 60 minutes
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    This activity (on page 3 of the PDF under GPS: Sailboat Design Activity) is a full inquiry investigation into design optimization. Groups of learners will construct a basic sail car out of a fast...

    $5 - $10 per group Ages 8 - 14 2 to 4 hours