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In this activity, learners build a sled kite that models a type of airfoil called a parawing.

In this physics activity (page 2 of the PDF), learners will construct their own walkalong glider. They will explore how air, though invisible, surrounds and affects other objects.

In this engineering/design activity, learners make a kite, fly it, and then work to improve the design. Learners explore how their kite design variations affect flight.

In this challenge, learners make a helium balloon hover in one spot and then move it through an obstacle course using air currents.

This activity provides instructions for making an aircraft that can really fly using a straw and paper hoops!

In this design challenge activity, learners make a balloon hover at eye level for five seconds, and then make it move by creating air currents.