Create a tornado in a bottle! With this colorful plastic tube, learn about the science of vortex energy, the swirling, twisting and spiraling action that can be found everywhere in nature. You will need 2, 1-liter soda bottles.
WHow does it work?
Fill one of the 1-liter bottles with water. Connect the empty bottle to the first with the Tornado Tube, so it looks like an hourglass. Tip this "hourglass" upside down, swirl the bottles, and in seconds a beautiful "tornado" appears.