| A | B |
| weather | Condition of the Earth's surface at a particular time and place. |
| exosphere | The outermost layer of the atmosphere where satellites orbit. |
| thermosphere | The warmest layer of the atmopshere. |
| ionosphere | Radio waves bounce back and the aurora borealis occurs here. |
| atmosphere | The layer of gases that surround the Earth. |
| mesosphere | The layer where meteors burn up. |
| troposphere | The layer where weather occurs. |
| stratosphere | This layer contains ozone that aborbs the sun's radiation. Airplanes also fly here. |