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Gymnast
Source Institutions
In this physics activity, learners build a toy with a figure that spins around like a gymnast on the high bar.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-002-697.jpg?itok=vGEvmj1m)
Digger
Source Institutions
In this activity, learners build their own construction cranes using tongue depressors and pushpins.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-004-395.png?itok=t4dbcd_n)
Levers at Play
Source Institutions
In this activity, learners consider how a simple machine, a lever, turns a small push or pull (a small force) into a larger--or stronger--push or pull (a larger force).
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-004-108.png?itok=TF2itMbv)
Puppet Power
Source Institutions
In this mechanical engineering activity, learners design shadow puppets with moving parts and use them to tell stories.