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CD Spinner
Source Institutions
In this activity, learners create a simple “top” from a CD, marble and bottle cap, and use it as a spinning platform for a variety of illusion-generating patterns.
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Two Washers
Source Institutions
In this activity, learners create a mind and math puzzle that requires a three-dimensional solution.
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Don't Crack Humpty
Source Institutions
Groups of learners are provided with a generic car base and an egg. Their mission: design a device/enclosure to protect the egg on or in the car as it rolls down a ramp with increasing slopes.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-004-259.jpg?itok=72pgq_xc)
Parabola Basketball
Source Institutions
In this activity, learners build mini-basketball courts and explore the laws of physics. Learners discover that everything you throw or shoot on earth travels in a parabola.
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Hanging Around
Learners investigate weight by building a spring scale. They observe and record how it responds to objects with different masses.
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Paper Drop Design Competition
Source Institutions
Using paper, paper clips, an index card, and tape, teams of learners design flying devices to (1) stay in the air as long as possible and (2) land as close as possible to a given target.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-001-674.gif?itok=2BTlhBTb)
Pendulum Snake
Source Institutions
In this physics activity, learners assemble and/or investigate a pendulum "snake." Several large steel hex-nuts are suspended on strings of successively increasing length to form a series of pendulums
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-003-108.jpg?itok=cykMbl55)
Skateboard Disaster
Learners examine collisions between two skateboards carrying different masses. They learn about conservation of momentum in collisions.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-002-695.jpg?itok=AXdrDVk6)
Games of Chance and Brains
Source Institutions
In this activity, learners build and play three math games. In the first game, called "Switcheroo," learners place marbles in holes 1 through 4 and 7 through 10.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-002-703.jpg?itok=a-s5mTFc)
Topological Puzzles
Source Institutions
In this activity, learners construct three math puzzles out of simple materials like wood, string, and Styrofoam.