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20 Cards in this Set
- Front
- Back
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Earth's atmosphere is mostly composed of
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Nitrogen-78%
Oxygen -21% Other -1% |
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Over the last 4.6 billion years the Earth's atmosphere has changed
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If the earth cooled volcanoes formed releasing heat ,and lots of water called Out Gassing
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comets
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Over the last 4.6 billion years comets ( which are mostly water) has hit the earth and have added to earth's water
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plants and animals
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The first plants on earth were small algae like plants that form on the oxygen by the photosynthesis
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Other gasses
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nitrogen- from the beginning of the Earth/ Solar System nitrogen has been in our atmosphere
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Human effect on Earth's climate
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Even more carbon dioxide because of burning fossil fuels. carbon dioxide is considered a greenhouse gas
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Ozone
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chemical formula-O3 (3 oxygen bonded
found in the stratosphere |
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Layers Of The Atmosphere
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Exosphere (Space)
Thermosphere (100-500km) Mesosphere (45-100km) Stratosphere (10-45km) Troposphere (0-10km) |
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Troposphere
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lowest layer of the Atmosphere
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Stratosphere
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-Second layer of the Atmosphere up from the earth
-Contains Jet Streams -Contains Ozone Layer |
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Mesosphere, Thermosphere,and Exosphere
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Mesosphere- middle layer... not much goes on
Thermosphere- Contains the Ionosphere Exosphere- upper space |
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Radiation
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The sun's radiation responsible for all the Earth's weather through conduction and convection
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conduction
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Heat transferred by way of touch
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Convection
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It's any hot rising/ cold sinking when it cools off
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atmospheric pressure
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Force of all gases in the atmosphere that are pushing down due to gravity
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Clouds
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Clouds are droplets of either liquid or ice water that have condensed around the central piece of dirt or dust
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Clouds
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Status - layered, flat
Cumulus- big puffy Cirrus- thin and wispy (all small ice crystals floating in the air) |
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Fronts
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French is a boundary between two air masses of different temperatures they are named by the air that is behind them pushing forward
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Cold front
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Cold front is when cold air is behind the front pushing forward
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Warm front
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War front is when warmer air is behind the front pushing forward
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