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Seismic Slinky!
Source Institutions
Did you know that a Slinky makes a handy model of earthquake waves?
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-001-675.gif?itok=OMr77wPX)
CD Air Puck
Source Institutions
In this activity, learners will use a compact disc to build an air puck that can glide across a smooth tabletop. The puck glides with almost no friction on a cushion of air escaping from a balloon.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-002-579.jpg?itok=xbaNWE6H)
Vortex
Source Institutions
In this activity, learners create a tornado in a bottle to observe a spiraling, funnel-shaped vortex. A simple connector device allows water to drain from a 2-liter bottle into a second bottle.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-002-448.jpg?itok=ycdycO8b)
Bubble Suspension
Source Institutions
In this activity, learners observe as soap bubbles float on a cushion of carbon dioxide gas. Learners blow bubbles into an aquarium filled with a slab of dry ice.