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Atmosphere and Weather Vocabulary Atmosphere Picture/Example Definition: layers of gases that surround a planet Personal Connection / Experience Air Pressure Picture/Example Definition: force of the air pushing down Personal Connection / Experience Altitude Picture/Example Definition: distance (height) above sea level Personal Connection / Experience Troposphere – Layer 1 Picture/Example Definition: 1st layer of atmosphere, closest to Earth where weather happens Personal Connection / Experience Stratosphere – Layer 2 Picture/Example Definition: 2nd layer of the atmosphere; contains ozone; airplanes fly in this layer Personal Connection / Experience Ozone Picture/Example Definition: layer in stratosphere that holds in Earth’s heat and blocks harmful UV light Personal Connection / Experience Mesosphere – Layer 3 Picture/Example Definition: 3rd layer of the atmosphere; protects Earth from most meteorites Personal Connection / Experience Thermosphere - Layer 4 Picture/Example Definition: outermost layer of the atmosphere; very hot; extends to space Personal Connection / Experience Weather Picture/Example Definition: outside conditions at a particular time and place Personal Connection / Experience Climate Picture/Example Definition: Average yearly conditions of wind, temperature, precipitation, and clouds in an area Personal Connection / Experience Conduction Picture/Example Definition: transfer of heat by direct contact of particles Personal Connection / Experience Convection Picture/Example Definition: transfer of heat through movement of particles Personal Connection / Experience Radiation Picture/Example Definition: transfer of heat through light waves Personal Connection / Experience Wind Picture/Example Definition: movement of air particles Personal Connection / Experience Jet stream Picture/Example Definition: Band of high speed winds Personal Connection / Experience Air mass Picture/Example Definition: huge body of air that has the same temperature and pressure Personal Connection / Experience Front Picture/Example Definition: boundary where different air masses meet Personal Connection / Experience Warm Front Picture/Example Definition: a warm air mass overtakes a cold air mass Personal Connection / Experience Cold Front Picture/Example Definition: a cold air mass overtakes a warm air mass Personal Connection / Experience Stationary Front Picture/Example Definition: cold and warm air masses meet, but neither is moved Personal Connection / Experience Isobar Picture/Example Definition: Lines on a weather map that connect areas of equal pressure Personal Connection / Experience Definition: Picture/Example Personal Connection / Experience
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