| A | B |
|---|
| force that causes air to move | air pressure |
| winds blow from | high to low |
| heated air has molescules that move | faster and farther apart |
| Heated air is less | dense |
| Heated air causes air pressure to | decrease |
| Cooler air is | denser |
| Cooler air has air pressure that is | greater |
| Cooler, denser air is heavier and | sinks |
| Warm air rises & cooler air replaces it it we have | wind |
| Most differences in air pressure are due to differences in air | temperature |
| Diff. in temp. due to the sun heating the earth's surface | unequally |
| The main source of wind energy is the | sun |
