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Weather
Common weather terms
Term | Definition |
---|---|
cumulus clouds | puffy white clouds; indicate good weather |
stratus clouds | clouds that form in layers; cover large areas of the sky and block out the sun |
cirrus clouds | thin, feathery, white clouds found high in the sky; formed by strong winds |
fog | stratus clouds that form near the ground |
cirro- | prefix used to describe clouds that form at high altitudes |
alto- | prefix used to describe clouds that form at middle altitudes |
-nimbus | suffix used to describe clouds that are likely to bring precipitation like rain or snow |
tornado | a destructive, rotating column of air that has very high wind speeds with a funnel cloud that touches the ground |
hurricane | a severe, rotating storm that forms over tropical oceans |
atmosphere | the mixture of gases that surround Earth |
air pressure | a measure of the force which molecules push against objects on Earth; increases and decreases indicate weather changes |
greenhouse effect | the warming of Earth due to gases such as carbon dioxide & methane which absorb heat and radiate it back to Earth |
global warming | a gradual increase in the average global temperature |
air pollution | contamination of the atmosphere by caused by human-made or natural pollutants |
weather balloons | carry equipment into the atmosphere where special instruments like thermometers and barometers gather weather data |
thermometer | an instrument used to measure temperature |
barometer | an instrument used to measure atmospheric pressure |
anemometer | an instrument used to measure wind speed |