It all begins with a bubble. And ends with a tornado. In between? SCIENCE!
Two soap bubbles are blown and attached one on top of the other. The bubble on the bottom is blown with smoke inside of it. Two small holes are created: one between the two bubbles and one on top. Thus making sciency things happen and creating a 'tornado.' Which looks awesome. And that's the most important thing.
I think it's safe to say I am not a scientist.