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Published byJuho Myllymäki Modified over 5 years ago
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Unit: Water and the Atmosphere Lesson 3: Layers of the Atmosphere
Essential Questions: 1.) What are the four main layers of the atmosphere? 2.) What are the characteristics of the atmosphere’s layers?
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Troposphere Altitude: About 0-12 km Temperature:
The temperature decreases. Observations: Most clouds occur here. Earth’s weather occurs here.
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Stratosphere Altitude: About 12-50 km Temperature:
The lower stratosphere is cold. Observations: Middle portion has ozone layer; filters out UV light; warmer than lower part.
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Mesosphere Altitude: 50-80 km Temperature: -90 degrees Celsius
Observations: Much colder than the stratosphere; protects Earth from meteoroids.
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Thermosphere Altitude: Above 80 km Temperature: The temperature rises.
Observations: Two layers: ionosphere (lower) and exosphere (outer)
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