-
the condition of the atmosphere at a certain time and place including temperature, humidity, precipitation, wind and visibility
weather
-
the amount of water vapor in the air
humidity
-
the ratio of the amount of water vapor in the air to the amount of water vapor needed to reach saturation at a given temperature
relative humidity
-
the change of state from a gas to a liquid...example...a glass of cold water
condensation
-
a collection of small water droplets or ice crystals suspended in the air
cloud
-
any form of water that falls to the Earth's surface from the clouds
precipitation
-
a large body of air where temperature and moisture content are constant (the same) 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
-
the rotation of air around a high-pressure center in the direction opposite to Earth's rotation
anticyclone
-
a usually brief, heavy storm that consists of rain, strong winds, lightning and thunder
thunderstorm
-
an electric discharge that occurs between a positively charged area and a negatively charged area. can happen between 2 clouds, clouds and ground or two parts of the same cloud
lightning
-
the sound caused by the rapid expansion of air along an electrical strike
thunder
-
a destructive, rotating column of air that has very high wind speeds, is visible as a funnel-shaped cloud, and touches the ground
tornado
-
a severe storm that develops over tropical oceans and whose strong winds of more that 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
|
|
