| A | B |
| chlorofluorocarbon | a molecule found in aerosols that destroys ozone molecules |
| conduction | transfer of heat by two objects touching |
| convection | transfer of heat by currents in a liquid or gas |
| radiation | transfer of heat by energy waves |
| degree | markings on the Celsius scale |
| greenhouse effect | phenomenom where certain gases block solar energy from escaping the earth's atmosphere |
| insolation | incoming solar radiation |
| isotherm | line on a weather map showing regions with the same temperature |
| mesosphere | the third layer of the atmosphere where temperatures drop |
| meteorology | the study of weather |
| normal lapse rate | the change in temperature with elevation (about 1 degree for every 160 meters) |
| stratosphere | the second layer of the atmosphere where temperature rises with elevation |
| troposphere | the first layer of the atmosphere where temperature drops with eleveation |
| thermosphere | the fourth layer of the atmosphere where temperature rises with elevation |
| ionosphere | the fifth layer of the atmoshpere full of charged particles |
| temperature inversion | a situation where cold air is trapped below warm air on the earh's surface |
| weather | the state of the atmosphere at a give place and time |
| acid rain | rain with a lowered pH due to nitous or sulfure oxides from the burning of fossil fuels |
| cirrus cloud | coud that are thin, feathery or tufted |
| stratus | colous the are low sheets or layers of clouds. |
| cumulus | clouds that are thick and puffy |
| nimbus | a rain cloud |
| relative humidity | the amount of moisture in an air mass compared to the maximum it could hold |
| coriolis effect | a bend in the air currents due to earths rotation |
| low | an area of unstable, moist weather |
| high | an area of stable, dry weather |
| jet stream | a very fast moving ribbon of air in the troposphere |
| land breeze | a breeze near a body of water that blows from the land to the sea |
| sea breeze | a breeze that blows from the sea to the land |
| cold front | the leading edge of a mass of cold air |
| warm front | the leading edge of a mass of warm air |
| chinook | unusually warm temperatures caused by |
| El Nino | an unusal reversal in ocean currents causing warming than normal weather |
| continental climate | climate in the middle of the continent that has cold winters and warm summers |
| marine climate | climate near large bodies of water with modearte winters and summers |
| abyssal plain | very deep, flat bottomed part of the ocean |
| continental rise | gentle slope between abyssal plain and continetnal slope |
| continental slope | steep sloping boundary between continental rise and continental shelf |
| continental shelf | gently sloping submerged part of a continent |
| guyot | flat topped seamount |
| seamount | a submerged mountain rising from the ocean floor |
| upwelling | vertical movement of cold water towards the surface |