| A | B |
|---|
| Aerosols | Tiny solid and liquid particles suspended in the atmosphere |
| Autumnal equinox | In the Northern Hemisphere, the time when the vertical rays of the Sun strike the equator moving southward |
| Climate | A composite of weather |
| Conduction | Heat transfer through contact (through matter by molecular activity) |
| Convection | Heat transfer by movement of a mass or substance form one place to another |
| Environmental lapse rate | The temperature decrease with increasing altitude in the troposphere |
| Greenhouse effect | The mechanism responsible for heating the atmosphere |
| Heat | The total kinetic energy of all the atoms that make up a substance |
| Infrared | Heat energy |
| Mesosphere | The third atmosphere layer, very cold |
| Ozone | A molecule of oxygen containing 3 oxygen atoms |
| Radiation | Heat transfer through space by electromagnetic waves |
| Spring equinox | In the Northern Hemisphere, the time when the vertical rays of the Sun strike the equator moving northward |
| Stratosphere | Second atmosphere layer, location of ozone concentration and atmosphere heats up |
| Summer solstice | In the Northern Hemisphere, the time when the vertical rays of the Sun are striking the Tropic of Cancer |
| Temperature | The measure in degrees of the hotness or coldness of a substance |
| Thermosphere | The outermost layer of the atmosphere |
| Tropic of Cancer | Located 23 ½ o north latitude |
| Tropic of Capricorn | Located at 23 ½ o south latitude |
| Troposphere | The bottom of the atmosphere, where temperature decreases with an increase in altitude |
| Ultraviolet | Electromagnetic energy with a shorter wave length than visible light, easily absorbed by O2 and O3 |
| Weather | the state of the atmosphere at any given time |
| Winter solstice | In the Northern Hemisphere, the time when the vertical rays of the Sun are striking the Tropic of Capricorn |
| Albedo | The % of total radiation that is reflected by a surface |
