| A | B |
|---|
| atmosphere | mixture of gases that surround Earth |
| conduction | transfer of heat through direct contact |
| convection | transfer of heat through a fluid |
| radiation | transfer of heat through empty space |
| greenhouse effect | process by which CO2 and other gases prevent heat energy from leaving the atmosphere |
| thermometer | device used to measure temperature |
| air pressure | measure of the force of air pressing down on Earth's surface |
| barometer | device used for measuring air pressure |
| wind | movement of air from an area of high pressure to an area of low pressure |
| sea breeze | flow of air from sea to land |
| land breeze | flow of air from land to sea |
| Coriolis effect | shift in wind direction due to Earth's rotation |
| amemometer | device used to measure wind speed |
| evaporation | process of a substance changing from a liquid to a gas |
| relative humidity | percentage of moisture the air holds relative to the amount it could hold at that temperature |
| psychrometer | device used for measuring relative humidity |
| precipitation | water that falls to Earth as rain, sleet, snow, or hail |
| rain gauge | device used for measuring rain fall |
| air mass | large body of air with the same properties |
| front | boundary that forms when two air masses meet |
| isotherm | line drawn on a map to connect places of equal temperature |
| isobar | line drawn on a map to connect places of equal barometric pressure |
