Kate's Corner: Balloon bottle blow-up

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BRIDGEPORT, W. Va (WDTV) - In this Kate's Corner we are going to blow up this balloon by inhaling and not by exhaling.

Here's what you'll need:
- Balloon
- Plastic bottle with a small hole in the bottom end

First we are going to put the balloon inside the bottle and wrap it around the neck.

Now, you may feel odd doing this but you are going to inhale through the hole in the bottle and watch the balloon. The balloon inflates. By keeping the hole sealed, the balloon stays inflated. Even when this end untied!

Remove your finger and it deflates.

This all has to do with air pressure. You have your air pressure around the bottle and inside the bottle. When you sucked out all the air inside the bottle, you created a low pressure. The high pressure around the bottle then has to move and fill that low pressure. It pushes down on that balloon and fills it up because there is no pressure inside the bottle to push back.