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Earth, Space Vocab

Earth and Space Vocab Oakwood Middle School

TermDefinition
Atmosphere the layer of gases that surround the Earth
Geosphere the solid portion of the Earth that includes the crust, mantle, outer and inner core
Hydrosphere all the waters on earth’s surface, such as lakes and seas, and sometimes water over earth’s surface including clouds
Biosphere the regions of the surface, atmosphere, and hydrosphere of earth that are occupied by living organisms
Greenhouse gases is a gas in the atmosphere that absorbs and emits thermal energy; greenhouse gases include: carbon dioxide, methane, nitrous oxide.
Nitrogen most abundant permanent gas in the atmosphere (78% of atmosphere consists of Nitrogen)
Oxygen second most abundant permanent gas in the atmosphere (21% of atmosphere consists of Oxygen)
Carbon dioxide variable gas found in the atmosphere
Troposphere the lowest layer of the atmosphere closest to Earth; most of Earth’s air is found here and this is where weather occurs
Stratosphere the layer above the troposphere; the ozone layer is found in this layer
Mesosphere located above the stratosphere; this is the layer in which meteors burn up to create shooting stars and it is also the coldest layer
Thermosphere located above the mesosphere; not much is known about this layer, but there is not much air in this layer
Exosphere the outermost layer, furthest from Earth’s surface; relatively thick layer but contains very little air. It is the transitional layer between Earth’s atmosphere and outer space.
Created by: pittmlom22