Balloon Boat Lab
The concept behind the Balloon Powered Boat is pretty simple, but that doesn't make it any less impressive! When you blow up the balloon, set your boat down, and let it go, escaping air from the balloon rushes out of the straw causing propulsion.
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Balloon Hover Craft
Try this very simple project to create a floating disc that skims across a surface similar to the way an air hockey puck or hovercraft does.
What You Need:
Top 5 Incredible Experiments with Balloons
So how does it work? It’s all about the air…and thrust. As the air rushes out of the balloon, it creates a forward motion called THRUST. Thrust is a pushing force created by energy. In the balloon experiment, our thrust comes from the energy of the balloon forcing the air out. Lab Instructions