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The Atmosphere 1-4

TermDefinition
Weather The condition of Earth's atmosphere at a particular time and place.
Atmosphere The envelope of gases that surrounds the planet.
Water vapor Water in the form of gases.
Density The radio of the mass of a substance to its volume.
Air pressure The pressure caused by 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 used to measure changes in air pressure, consisting of a glass tube partially filled with mercury, with its open end resting in a dish of mercury.
Aneroid Barometer An instrument used to measure changes in air pressure, without using a liquid.
Altitude Elevation above sea level.
Troposphere The outer most layer of Earths atmosphere.
Stratosphere The second-lowest layer of Earths atmosphere.
Mesosphere The layer of Earths atmosphere immediately above the stratoshere.
thermosphere The lowest layer of Earths atmosphere.
Ionosphere The lower part of the thermosphere.
Exosphere The outer layer of the thermosphere
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 wavelengths that are longer than visible light but shorter than microwaves.
Ultraviolet Radiation Electromagnetic waves with wavelengths that are shorter than visible light but longer than X-rays
Scattering Reflection of light in all directions.
greenhouse effect The trapping of heat near a planet's atmossphere.
Created by: mzapinski002
 

 



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