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Earth Science-Nate

Air Pressure The weight of air pressing down on the Earth.
Altitude Height above sea level.
Atmosphere Blanket of gases surrounding a planet.
Composition The parts that make up a system.
Density The number of molecules in the same amount of space. (mass per unit of volume) d=m/v
Ozone A gas made up of three oxygen molecules.
Ozone Layer A layer of O-3 in the atmosphere. In the upper atmosphere, it absorbs ultra-violet rays, thereby preventing them from reaching the Earths surface
Properties Features that describe and define an object.
Temperature a measure of the warmth or coldness of an object or substance with reference
Exosphere The fifth layer of the atmosphere extending into space
Mesosphere Called the "Middle Atmosphere" it is the coldest layer of the atmosphere
Stratosphere This layer is where the jets fly , also where ozone layer is found and it is drier
Thermosphere The temperatures are very hot in this layer because the temperatures increase with the altitude
Throposphere Layer of the atmosphere closest to Earth where weather occurs and planes fly
Deposition The process of water vapor changing from gas directly into a solid
Dew Point The temperature at which water vapor will start to condense into liquid water
Evaporation The process of a liquid changing to a gas
Fog Clouds that form at the surface of the Earth