| A | B |
|---|
| magnetosphere | the earth's magnetic field |
| ionosphere | located in upper part of mesosphere and lower part of thermosphere |
| altitude | distance from the surface |
| Northern Lights | glowing bands of colored light in the sky |
| stratopause | the boundary between the stratosphere and the mesosphere |
| composition | what something is made up of |
| mesosphere | the middle layer of the atmosphere |
| mesopause | the boundary between the mesosphere and thermosphere |
| thermosphere | the hottest layer of the atmosphere where the space shuttle flies |
| exosphere | starts at the top of the thermosphere where the satellites orbit |
| atmosphere | the envelop of gas surrounding the earth |
| troposphere | where weather happens - the layer just above the earth |
| tropopause | boundary between the troposphere and stratosphere |
| ozone | a molecule composed of 3 oxygen atoms |
| ozone layer | part of the stratosphere which protects people against UV radiation |
| stratosphere | above the troposphere where airplanes fly because the air is very stable here |
