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weather and climate

troposphere the lowest layer of the atmosphere where most water is found and most clouds form
thermometer a tool used to measure temperature
barometer an instrument that is used to measure air pressure and to predict changes in the weather
rain gauge an instrument for measuring the amount of moisture in the air
hygrometer an instrument for measuring the amount of moisture in the air
wind vane a weather instrument used to determine the direction the wind is blowing
anemometer an instrument for measuring the force or speed of the wind
high-pressure area a mass of cold air
low-pressure air a mass of warm air
water vapor gas or moisture floating in the air;steam
fog fine particles of water floating in the atmosphere near the ground
meteorologist a person who studies , report and forecasts weather conditions
updrafts an upward current of warm, moist air
wind the horizontal movement of air
atmosphere The layer of air that surrounds earth
air pressure The weight of air
humidity A measure of the amount of water in the air
precipitation Any form of water that falls from clouds such as rain or snow
evaporation The process by which a liquid changes into a gas
condensation The process by which a gas changes back into a liquid
local winds The winds dependent upon local changes in temperature
prevailing winds The global winds that blow constantly from the same direction
air mass A large body of air that has nearly the same temperature and humidity throughout
front The boundary between air masses
climate The average of all weather conditions through all seasons over a period of time
microclimate The climate of a very small area
El Nino A short-term climate change that occurs every two to ten years
green house effect Progress by which the earth atmosphere absorbs heat
global warming The hypothesized rise in earth's average temperature from excess carbon dioxide
Created by: emilyGK