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chapter 16 vocab
Question | Answer |
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the short tern state of the atmosphere, including temperature, humidity, percipitation, wind and visibility | weather |
the amount of water vapor in the air. | humidity |
the ratio of the amount of water in the air to the amount of water vapor needed to reach saturation at a given temperature | relative humidity |
the change of atate from a gas to a liquid | condensation |
a collection of small water droplets or ice crystals suspended in the air which forms when the air iss cooled and condensation | cloud |
any form of water that falls to the earth's sureface from clouds | precipitation |
a large body of air where temperature and moisture content are constant throughout | air mass |
the boundary between air masses of different densities and usually different temperatures | front |
an area in the atmosphere that has lower pressure than the surrounding areas and has winds that spiral toward the center | cyclone |
tha rotation ofa ir around a high pressure center in the direstion opposite to earth's rotation | anticyclone |
a usually brief, heavy storm that consists of rain, strong wind, lighting anf thunder | thunderstorm |
anelectric discharge that takes place between a cloud and the ground between two clouds or between two parts of the same cloud | lightning |
the sound coaused be the rapid expansion of air along an electrical strink | thunder |
a destructive rotation colum of air that has very high wind speeds is visible as a funnel shaped cloud and touches the ground | tornado |
a severe storm that deveops over tropical oceans and whose strong winds of more than 120km/h spiral in toward the intensely low pressure storm center. | hurricane |
an instrument that measures and indicates temperature | thermometer |
an instrument that measures atmospheric pressure | barometer |
an instrument used to measure wind speed | anemometer |