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

In this activity, learners explore accuracy and precision.

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

In this dynamic activity, learners build a catapult that launches projectiles, such as marshmallows.

In this invention challenge activity, learners see how many objects they can grab with a homemade "bionic" arm.