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In this activity, learners construct their own small catapults using simple materials. Learners follow visual instructions to build their launching device.

Using simple materials from around the house and recycled materials, learners will engineer a grabber device to pick up and put down objects that are at least 12 inches away.

In this design challenge, learners will create their own roller coaster using household objects for the track and a marble or small ball as their cart.

In this activity, learners are challenged to create a parachute using easily sourced materials in order to transport a LEGO figure safely to the ground.

In this activity, learners are challenged to design a wind-powered car using only a handful of household materials.

This activity is a hit for family events and all ages—some will finish in 45 minutes; others can go on for hours.