Budding chemists aren't the only ones who will get a kick out of this enjoyable experiment that teaches something about how the natural world works. When baking soda and vinegar come into contact, they form carbon dioxide. This gas fills the bottle and can't escape, so it rushes into the balloon, causing it to inflate.
Blowing the perfect bubble depends on equal parts science and magic. With a few twists of wire, you can make fantastic bubble wands and spend long, lazy days practicing your technique. The best bubble solution is 10 cups water to 4 cups dish-washing liquid, plus 1 cup Karo corn syrup.