How Stuff Works
How Stuff Works: How Helium Balloons Work
This article explains how helium is able to keep balloons afloat in the air. Compares them to how hot air balloons work. Includes a video, and some activities to try for testing the principles being discussed.
McREL International
Mc Rel: Whelmer #12 Learning Activity: Bernoulli Cans
An easy to do activity that investigates Bernoulli's principle. The activity is presented in lesson plan format that meets NSES standards.
