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Atmosphere
35 Vocabulary words regarding the Atmosphere
35
Science
9th Grade
08/28/2009

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Term
Weather
Definition
The state of the atmosphere at a given time and place, short term
Term
Climate
Definition
Long term state of the atmosphere
Term
Troposphere
Definition
Lowermost layer of the atmosphere
Term


Stratosphere

Definition
Layer above the atmosphere containing the Ozone layer
Term
Ozone
Definition
O3, reflects ultraviolent rays from the Sun
Term
Mesosphere
Definition
Layer of the atmosphere above the stratosphere
Term
Thermosphere
Definition
The region of the atmosphere above the mesosphere
Term
Altitude
Definition
Height
Term
Latitude
Definition
The distance north or south of the equator
Term
Conduction
Definition
The transfer of heat through matter by molecular activity via collisions
Term
Convection
Definition
The transfer of heat by the movement of a mass or substance. Can only take place in fluids
Term
Radiation
Definition
The transfer of energy through space by electromagnetic waves
Term
Reflection
Definition
The process whereby light bounces back from an object at the same angle at which it encounters a surface and with the same intensity
Term
Scattering
Definition
The redirecting of light by small particles and gas molecules in the atmosphere, causing more light rays with weaker intensities
Term
Absorption
Definition
The process of taking in something
Term
Photosynthesis
Definition
The process by which plants use light energy to convert water and carbon dioxide into energy-rich glucose molecules
Term
Albedo
Definition
The fraction of total radiation that is reflected back by a surface
Term
Greenhouse Effect
Definition
The heating of Earth's surface and atmosphere from solar radiation being absorbed and emitted by the atmosphere, mainly by water vapor and carbon dioxide
Term
Isotherm
Definition
A line connecting points of equal temperature
Term
Barometer
Definition
An instrument that measures atmospheric pressure
Term
Isobar
Definition
A line on a weather map connecting points of equal atmospheric pressure
Term
Pressure Gradient
Definition
The amount of pressure change occuring over a given distance
Term
Coriolis Effect
Definition
The apparent deflecting force of Earth's rotation on all free-moving objects including the atmosphere and ocean
Term
Trade Winds
Definition
Two belts of winds that blow almost constantly from easterly directions and are located on the north and south sides of the subtropical highs
Term
Prevailing Winds
Definition
A wind that consistently blows from one direction more than another
Term
Westerlies
Definition
The dominant west-to-east motion of the atmosphere that characterizes the regions on the poleward side of the subtropical highs
Term
Sea Breeze
Definition
A cool breeze blowing from the sea toward the land
Term
Land Breeze
Definition
A breeze that blows from the land toward open water
Term
Jet Stream
Definition
Swift high-altitude winds
Term
Phenomena
Definition
An occurrence, circumstance, or fact that is perceptible by the senses
Term
Ascending
Definition
Rising
Term
Descending
Definition
Falling
Term
Fluctuate
Definition
To rise and fall
Term
Medium
Definition
Term
Abundant
Definition
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