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Echo Base Bobsleds
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The goal of this activity is to build a miniature bobsled that is either the fastest or the slowest. Learners use recycled materials to design, build, and test their bobsled on a bobsled track.
Fun with Speedboats
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In this activity, learners explore how boats are engineered to achieve speed.
Draggin' Boats
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Learners design, build, and test models of "dragon boats" made from up to three milk cartons.
Marble Run!
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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.