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This simple toy sounds like a swarm of bees.
Build a rubber-band-powered rolling plastic water bottle.
A dipping bird seems to go forever—but it's not perpetual motion.
Build a low-friction cart and explore Newton’s third law.
Make the liquid in this toy rise and fall in a cycle.
Components of force make a toy walk and stop at just the right time.
This work is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License.
Attribution: Exploratorium Teacher Institute
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