| A | B |
| atmosphere | mixture of gases surrounding the Earth |
| moisture | wetness |
| sun | provides radiant energy to the Earth |
| conduction | direct transfer of heat energy from one substance to another |
| convection | transfer of heat energy in a gas or liquid |
| fluid | a gas or liquid |
| radiation | transfer of heat energy through empty space |
| greenhouse affect | gases in atmosphere absorb infrared radiation from the sun forming a heat blanket around the Earth |
| Thermometer | measures the air temperature |
| air pressure | measure of the force of the air pressing on the Earth's surface |
| barometer | measures air pressure |
| winds | movement of air from one place to another |
| land breeze | flow of air from land to sea |
| sea | flow of air from sea to land |
| evaporation | water escapes into the air |
| anemometer | measures wind speed |
| relative humidity | percent of moistur the air holds relative to temperature |
| psychrometer | measures humidity |
| precipitation | water that falls from the atmosphere to the Earth |
| air mass | large body of moving air |
| fronts | boundary between 2 different air masses |
| isotherms | lines on weather maps that connect the same temperature |
| isobars | lines on the weather map that connect the same air pressure |
| Coriolis effect | shift in wind direction due to Earth rotation |