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9 Cards in this Set
- Front
- Back
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What is the atmosphere?
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- The mixture of gases that surround the Earth
- Contains the oxygen that we breath - Protects us from harmful Ultraviolet rays |
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What is air pressure?
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- The measure of the force with which the air molecules push on a surface
- Ears pop when the air pressure on the inside and out of your ear are the same |
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what is altitude?
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- The height of an object over the earth's surface
- The higher the altitude, the lesser the pressure |
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What is the troposphere?
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- The layer the lies next to the Earth's surface
- The lowest layer of the atmosphere |
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What is the stratosphere?
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- The layer above the troposphere
- Very thin and contains little moisture |
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What is the ozone?
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- A molecule which consists of three oxygens
- It absorbs solar energy |
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What is the mesosphere?
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- Above the stratosphere
- The coldest layer - Can go down to -93 degrees celsius |
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What is the thermosphere?
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- The uppermost layer
- Above the mesosphere - Can reach up to 1700 degrees celsius |
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What is the ionosphere?
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- The upper part of the mesosphere, and the lower part of the thermosphere
- It absorbs solar energy |
