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Sled Kite
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In this activity, learners build a sled kite that models a type of airfoil called a parawing.
River Catcher
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In this activity (located at the top of the page), learners make an easy river strainer and see what they can catch.
Control a Bird’s Flight
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In this engineering design challenge, learners make a bird and then control its flight with attached strings.
Crystal Creations: Grow Spikes of Crystals in the Sun
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This activity shows you how to make amazing crystal spikes using Epsom salt and the sun.