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In this activity, learners build an electric two-paddle boat using paint paddles, plastic knives, and empty water bottles.

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

In this physical activity, two lines of learners link hands and arms to model a beam subject to various loading schemes.

Learners construct and launch paper helicopters.

In this activity, learners build an old-fashioned paddle boat out of simple materials.

In this activity, learners explore the concept of force and how pulleys are used in everyday life to make work easier.

In this activity, learners explore trebuchet design. Teams of learners construct trebuchets from everyday materials.

In this activity, learners explore rocketry and the principals of space flight.

In this design challenge activity, learners build a tower that can support a tennis ball at least 18 inches off the ground while withstanding the wind from a fan.

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

In this activity, learners build their own construction cranes using tongue depressors and pushpins.

In this meteorology activity, learners build weather vanes using straws, paperclips, and cardstock.