Blow Up Balloon

Science Behind It

Here's what you need:

• Baking soda
• Funnel
• Balloon
• Empty plastic bottle
• Vinegar

Steps: 

1. Using the funnel, put about 1 tablespoon of baking soda into the balloon.  See the balloon aside.
2. Clean the funnel.
   
3. In the plastic bottle, use the clean funnel to pour some vinegar.
4. Carefully attach the tip of the balloon to the tip of the bottle, making sure you don't pour in any of the baking soda.
5. Once the balloon is tightly attached to the bottle, raise the balloon so that the baking soda falls into the vinegar.
6. Stand back and watch what happens!​