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CH 3

TermDefinition
weather the condition of Earth's atmosphere at a particular time and place
atmosphere The envelope of glasses that surround Earth.
water vapor Water in the form of a gas.
density the ratio of the mass of a substance to its voleume
air pressure the pressure of the weight of a column of air pushing down on an area.
barometer An instrument used to measure changes in air pressure
mercury barometer an instrument that measures changes in air pressure consisting of a glass tube partially filed with mercury with its open end resting on a dish of mercury
aneroid barometer an instrument that measures changes in air pressure without using a liquid
altitude elevation above sea level
troposphere the lowest layer of Earth's atmosphere
stratosphere the second lowest layer of earths atmosphere
mesosphere the layer of Earth's atmosphere immediately above earth's stratosphere
thermosphere the outer most layer of Earth's atmosphere
ionosphere the lower part of the thermosphere
exosphere the outer layer of the thermo sphere
electromagnetic waves a wave that can transfer electric and magnetic energy through the vacuum of space
radiation the transfer of energy by electromagnetic waves
infrared radiation Electromagnetic waves with wavelength that are no longer visible than visible light
ultraviolet radiation electromagnetic waves with wavelengths that are shorter than visible light
scattering reflection of light in all directions
greenhouse effect the trapping of heat near a planets surface by certain gassesin the planets atmosphere
Created by: avitale036
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