11. Blow Up a Baloon
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. Then add the yeast and carefully swirl the bottle so the yeast can dissolve. Then add the sugar and swirl the bottle again a little bit. The yeast is now active. Now all you need to do is blow up a balloon a few times to stretch it, then attach the neck of the balloon over the neck of the bottle and let it sit about 20 minutes. Make sure the place is warm. Now watch the magic as the balloon will start to inflate.
