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15 Cards in this Set
- Front
- Back
Front (Term) Atmosphere |
The envelope of gases that surrounds the planet |
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Nitrogen |
The most abundant gas in the atmosphere and is 78% of our air |
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Oxygen |
2nd most abundant gas at 21% |
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Carbon Dioxide |
Less than 1% of our air |
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Weather |
The condition of Earths atmosphere at a particular time and place |
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Density |
The amount of mass in a given volume of air. The less mass in a given volume the less dense the air |
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Pressure |
The weight of the air which is heavy exerts a force on surfaces. The force pushing down on surfaces is air pressure. |
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Cool air tends to be____ and have a ___ pressure so it drops and flows under warm air. |
Denser, higher |
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Warm air expands and becomes ___ dense and it’s air pressure ___ and rises |
Less, decreases |
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The ___ you go the less dense the air and the less air pressure |
Higher |
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The ___ you go the denser the air and the more air pressure |
Lower |
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Troposphere |
Lowest layer Where the weather occurs Altitude is 1-12km Temperature- altitude increases the temp decreases Contain almost all of the mass of the atmosphere |
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Stratosphere |
2nd layer and contains the Ozone layer Altitude- 12-50km Temp- -60 degrees and hen gets warmer Contains the Ozone layer |
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Mesosphere |
Middle layer of the atmosphere Altitude- 50-80 Temp- drips very quickly and continues to get colder Protects earths surface form being hit by meteoroids |
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Thermosphere |
Outermost layer of the atmosphere air is very thin Altitude- 80km and up Temp- up to 1800 degrees but wouldn’t feel the warm atoms are too far apart Ionsosphere-lower layer of the Thermosphere 80km -400km Exosphere- outer layer 400km -???? |
