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Air Pressure and Dent Pullers
Source Institutions
In this activity, learners simulate Otto von Guericke's famous Magdeburg Hemispheres experiment.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-003-559.png?itok=Vallsu6z)
Rotating String Shapes
Source Institutions
In this group activity, learners make multi-sided polygons with string.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-004-684.jpg?itok=LXQMmNU0)
Modulated Coil: Hear the magnet!
Source Institutions
Do you have an extra portable cassette tape player hanging around?
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-004-492.jpg?itok=KkkJB7t7)
Newspaper Bridges
Source Institutions
In this activity, learners build bridges out of newspaper and tape to explore how structures are designed to bear loads.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-004-493.jpg?itok=UDGUbujD)
Skewers and Garden Poles
Source Institutions
In this activity, learners build scaled-down structures and cantilevers in a series of "building out" challenges with bamboo skewers and tape.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-003-530.png?itok=ILwk_MY9)
String Shapes
Source Institutions
In this activity, learners work together to make polygons (many-sided shapes) with string. Learners sit on the floor and hold onto a piece of string slid between their thumbs and index fingers.