How To Blow Up A Balloon With Yeast

Cause: I am showing you how to do it because it is a really fun experiment for students like me to do with your class or at home.
Ingredients:
Yeast

A teaspoon of Sugar
A bottle of water
A clear and clean plastic bottle
Balloons
Method:
Pour the water into the clear plastic bottle.
Next cut up your packet of yeast and put
 it into
 your bottle.
Put the lid of the bottle onto the bottle and
SHAKE it.
Now take off the lid and add your sugar.
Put the lid back on and SHAKE the bottle again.
Now take off the lid and put on you balloon.
Put the bottle in a warm place for 20 minutes.