Intro to Layers of the Atmosphere.notebook
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Atmosphere Anticipation Guide
Grade:«grade»Subject:Env Sci
Date:«date»
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1 What is the most abundant gas in our atmosphere?
A OxygenB NitrogenC HydrogenD Carbon
Intro to Layers of the Atmosphere.notebook
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2 How many layers are there in our atmosphere?
A 3B 4C 5D 6
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3 The atmosphere on Earth formed due to
A the evolution of plantsB the evolution of animalsC the evolution of photosynthetic bacteriaD the evolution of algae
Evolution of the Atmosphere:
http://youtu.be/OaiAhV0C2c
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Atmosphere
Exosphere 690 km and upThermosphere 85690 km
Mesosphere 5085 km
Stratosphere 2050 km
Troposphere 620 km
Atmosphere of Earth PullPull
Troposphere
Troposphere
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The troposphere is the lowest part of the Earth’s atmosphere. The troposphere begins at the surface and extends to between 9 km (30,000 ft) at the poles and 17 km (56,000 ft) at the equator, with variation due to weather. The troposphere contains roughly 80% of the mass of the atmosphere.
{Troposphere
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Stratosphere
Stratosphere
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The stratosphere is a layer in the Earth’s atmosphere where the ozone layer is found. The stratosphere extends from the tropopause (the transition layer between the troposphere and stratosphere) to about 51 km (170,000 ft). The stratosphere is the region where most weather balloons soar. Weather balloons collect data regarding atmospheric pressure, temperature, and humidity.
{Stratosphere
Mesosphere
MesosphereThe mesosphere is the layer where most meteors burn up upon entering the atmosphere. The mesosphere extends from the stratopause to 8085 km (5053 miles). The top of the mesosphere is the coldest place on Earth and has an average temperature around −85 °C (−120 °F) and temperatures may drop to −100 °C (−150 °F). Water vapor is frozen, forming ice clouds.
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Mesosphere{
Intro to Layers of the Atmosphere.notebook
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Thermosphere
ThermosphereTemperature increases with height in the thermosphere from the mesosphere up to the exosphere. The temperature of this layer can rise to 1,500 °C (2,700 °F), though the gas molecules are so far apart that temperature in the usual sense is not well defined. The International Space Station orbits in this layer, between 320 and 380 km (200 and 240 mi). The top of the thermosphere is the bottom of the exosphere.
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{Therm
osphere
Exosphere
Exosphere
The outermost layer of Earth's atmosphere extends from the thermosphere upward. It is made up of hydrogen and helium. Within this region particles of atmosphere can travel for hundreds of kilometers in a ballistic trajectory before bumping into any other particles of the atmosphere. Particles escape out of the exosphere into deep space.
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{Exosphere
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