Journal: Air Pressure and Wind
If you have ever inflated a balloon and then let the air flow out of it quickly, you have likely felt the movement of air that this causes. Think of an inflated balloon and create a journal entry to answer these questions:
1. When the balloon is inflated, where is air pressure greatest, inside it or outside it? (Hint:the air inside the balloon is exerting force on the inside walls of the balloon and the air molecules are trapped in a confined space.)
2. When the balloon has deflated, is there any difference between the air pressure inside and outside of the balloon? Explain.
3. When a balloon is deflating, why does air leave the balloon?
4. Using the example of the balloon, explain what causes wind to blow.