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Definitions (34)
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Thermosphere
The highest layer in the atmosphere, where atoms absorb solar energy resulting in warming of the air to as high as 3,600 F.
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Air pressure
Force that air exerts over a certain area due to it's weight or motion.
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amu
atomic mass unit, the unit used to measure the masses of subatomic particles; a proton has a mass of 1 amu.
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atom
The smallest part of an element that has all the properties of the element.
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Celsius scale
A temperature scale where water freezes at 0º C and boils at 100º C.
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Cloud
A visible collection of very fine water droplets or ice crystals suspended in the atmosphere at altitudes from just above the ground to several miles above the sea level.
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CONDENSATION
The process by which a gas or vapor changes to a liquid.
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Condensation nuclei
Tiny particles invisible to the human eye, such as dust, dirt, and pollutants, that provide surfaces on which water molecules can condense and gather into water droplets.
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conduction
The transfer of heat within a substance or from one substance to another as a result of molecular motion. Always from warm to cold areas.
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convection
The transfer of energy and mass by motions in a liquid or gas. In the atmosphere, convection usually refers to the vertical interchange of air masses. An example of convection is the rising of warm su [..]
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