| A | B |
|---|
| Nitrogen | 78% of the Earth's atmosphere |
| Oxygen | 21% of the Earth's atmosphere |
| Air Pressure | the measure of force with which air moculues push on each other |
| Altitude | height of an object aabove sea level |
| Troposphere | the densest atmosphic layer |
| Troposphere | the layer in which you live |
| Stratosphere | temperature rises with altitude in this layer |
| Ozone Layer | found in the stratosphere |
| Mesosphere | the coldest layer |
| Mesosphere | has large wind storms |
| Thermosphere | the hottest layer |
| Radiation | the transfer of energy as electromagnetic waves |
| Green House Effect | earth's heating process, in which the atmosphere trap thermal energy |
| Wind | moving air |
| Coriolis Effect | the curving of moving objects, such as wind, by the Earth's rotation |
| Trade Winds | winds that blow from 30 degrees latitude to the equator |
| Trade Winds | used by early traders to sail from Europe |
| Doldrums | where the trade winds of the Northern and Southern Hemispheres meet in an area of low pressure |
| Doldrums | means "foolish" |
| Westerlies | wind belts found in both the Northern and Southern Hemispheres between 30 degrees and 60 degrees latitude |
| Polar Easterlies | wind belts that extend from the poles to 60 degrees in both hemispheres |
| Jet Streams | narrow belts of high-speed winds that blow in the upper troposphere and lower stratosphere |
