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

In this engineering activity, challenge learners to invent a water filter that cleans dirty water.

In this activity, challenge learners to design a roller coaster ride for a marble using cardboard and other simple materials.

In this activity, challenge learners to keep an ice cube from completely melting in 30 minutes. Learners engineer a box or wrap to prevent an ice cube from melting.