| A | B |
|---|
| Evaporate | Change from a liquid to a gas |
| Stratosphere | Second layer of the atmosphere, includes the ozone layer |
| Troposhphere | Bottom layer of the atmosphere, extending from ground level up to about 16 KM above the Earth |
| Mesosphere | Third layer of the atmosphere; the coldest layer |
| Atmosphere | Envelope of gas surrounding an object in space |
| Stratus cloud | Low, flat cloud that forms in layers |
| Wind cell | Continuous cycle of rising war air and falling cold air |
| Thermosphere | Outermost layer of the atmosphere, includes most of the ionosphere |
| Fog | Stratus cloud that forms near the ground |
| Altitude | Height above the Earth's surface |
| Polar easterly | Wind near a pole; blows from the east |
| Trade wind | Strong reliable wind just north or south of the equator, blows from the east |
| Water vapor | Water in the form of a gas |
| Prevailing westerly | Wind generally between 30oN and 60oN latitudes; blows from the west |
| Condense | Change from a gas to a liquid |
| Cirrus cloud | High, wispy cloud made of ice crystals |
| Precipitation | Moisture that falls to the Earth from the atmosphere |
| Ionosphere | Layer of the atmosphere containing ions, or electrically charged particles |
| Cumulus cloud | Puffy, white cloud occuring at medium alititudes |
| Wind belt | Pattern of wind movement around the Earth |
