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GreenfieldAtmosphere

Layers of the Atmosphere

TermDefinition
Ozone A form of oxygen composed of three oxygen atoms bonded together. Ozone in the lower atmosphere is a pollutant, but in the upper atmosphere protects life from ultraviolet radiation.
Troposphere The lowermost layer of the atmosphere; temperature decreases with altitude here.
Stratosphere Layer just above the troposphere; temperatures increase with altitude because of the presence of ozone.
Mesosphere Means "middle"; the layer between the stratosphere and thermosphere where temperature decreases with altitude. This is the coldest layer.
Thermosphere An outer atmospheric layer where gases are extremely thinly distributed. It is also the hottest layer
Conduction The process in which energy moves from a location of higher temperature to a location of lower temperature as heat. The material does not move, just the heat.
Convection The movement of material due to differences in temperature.
Radiation The movement of energy through empty space between objects by electromagnetic waves.
Greenhouse Effect The trapping of heat by greenhouse gasses in the atmosphere; moderates temperatures.
Atmosphere The mixture of gases that surround the Earth
Nitrogen and Oxygen The two gases that 99 percent of Earth's atmosphere is composed of
Thermosphere One of the two layers farthest from the Earth. The auroras, beautiful night lights, can be seen near the poles are in this layer of the atmosphere
Exosphere The outermost layer of the atmosphere before entering space. This is where satellites orbit our planet
Earth's atmosphere This reaches from Earth's surface to about 370 miles into space. Each layer of this serves a specific and important purpose in maintaining life on Earth
Inert Gases Hydrogen, methane, helium, argon, and carbon dioxide make up the other 1% of Earth's atmosphere
Air temperature and air pressure As you travel farther from the Earth, _________ and __________both change.
Stratosphere Airplanes fly in the lower part of this layer because they can stay above the weather. The ozone layer lies in the upper most part of this layer.
Created by: pattigreenfield
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