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14 terms

Tomahawk 7th Air Around You Ch 2 vocabulary

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weather
the state of the atmosphere at a specific time and place. Weather describes air pressure, wind, temperature, and the amount of moisture in the air
humidity
the amount of water vapor present in the air
relative humidity
If the air is at 100% relative humidity, sweat will not evaporate into the air. We feel much hotter than the actual temperature when the relative humidity is high
dew point
The temperature at which air is saturated and condensation forms
fog
air is cooled to its dew point near the ground, it forms a stratus cloud called fog
precipitation
the falling to earth of any form of water (rain or snow or hail or sleet or mist)
air mass
large body of air that has properties
similar to the part of Earth's surface over which it develops
front
boundary between two air masses of different density,
moisture, or temperature
tornado
violently destructive windstorm with a funnel-shaped cloud extending toward the ground
blizzard
a storm with widespread snowfall accompanied by strong winds
meteorologist
person who studies the weather
station model
shows the weather conditions at a specific location
on Earth's surface; it is recorded on a map using a combination of symbols
isotherm
line that connects points of equal temperature
isobar
line drawn to connect points of equal atmospheric pressure