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In this engineering activity, learners explore simple machines and then build cardboard automata using cams.

In this activity, learners explore the concept of friction and how ball bearings reduce friction.

In this activity, learners experiment with gear motion to understand how gears work to change the amount of force, speed, or direction of motion in machines.

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

Experiment with friction and make bearings for a whirligig! This activity is a nice introduction to friction and bearings and demonstrates why bearings are useful for spinning.

In this engineering activity, learners design and build a mechanical arm to lift a small item.

In this activity, learners explore work, forces, simple machines, and construction. This lesson guide includes simple ways to demonstrate these principles as well as hands-on activities.