You will need some warm water, a small clean plastic soda bottle, a packet of yeast, 1 tablespoon of sugar, and a small balloon. First, you need to fill the bottle p with bout 1 inch of warm water.

You will need an ice cube, a piece of fishing line with a weight tied to each side, a tray, and a container for the number two on our list of cool experiments to do at home with household items. Turn ...