| A | B |
|---|
| adiabatic change | temperature change without the addition or subtraction of any heat |
| weather | short tem conditions of the atmosphere, including temperature, humidity, precipitation, wind, ans visibility |
| ozone hole | caused by chemicals called CFCs being released into the atmosphere |
| Clean Air Act | the US law that controls the amount of pollutants that businesses release |
| cloud formation sequence | rising air expands, which cools it, forcing condensation of clouds |
| satellites | weather technology that allows for better tracking of hurricanes |
| deep ravine or ditch | place of refuge from an approaching tornado |
| Global warming | concerning rise in average global temperature |
| dynamic or changing | describes the amount of water vapor in the air |
| Cirrus clouds | high clouds |
| sling psychrometer | type of hygrometer used to measure relative humidity |
| convection cycle | warm air rises while cooler air sinks |
| acid rain | sulfur dioxide and nitrogen oxide from fossil fuels mixing with water in the air |
| front | boundary between two different air masses |
| doppler radar | weather technology that allows quick detection of tornadoes |
| tornado watch | weather conditions are right for a tornado to occur |
| relative humidity | ratio of the amount of water vapor present compared to the amount of water vapor the air can hold at a given temperatuer |
| warm moist air | believed to provide energy for hurricanes |
| climate | average weather conditions in a given area over a long time |
| tornado warning | tornado has been sighted |
| stratus clouds | gray low lying clouds that can result from thick fog lifting |
| nimbocumulous | vertical storm clouds |
| altocumulus | mid level clouds that can be precursers to summer storms |
| cumulus | fair weather clouds that resemble cotton balls |
| dew point | the temperature air has to be cooled for saturation to occur |
