| A | B |
|---|
| Air Mass | A large body of air that has the same temperature and humidity throughout. |
| Air Pressure | The weight of the atmosphere pressing down on Earth. |
| Evaporation | The process of a liquid changing into a gas. |
| Atmosphere | The blanket of air surrounding Earth. |
| Condensation | The process of water changing from a gas to a liquid. |
| Front | The border where two air masses meet. |
| Troposphere | The layer of air closest to Earth's surface. |
| Ozone | A layer of gas in the Stratosphere that protects the Earth from ultra-violet light. |
| Local Winds | Movements of air that result from local changes in temperature. |
| Climate | The pattern of weather an area experiences over a long period of time. |
