Atmosphere

Dottie Snyder and Tori Huntley

Troposphere

This is the Earth's lowest layer. It contains all of our weather.The sunlight warms the oceans and/or ground. In this layer hot air rises and cold air sinks. So it gets hot as it gets higher up.
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Stratoshpere

This is the second layer of the Earth's atmosphere. It is above the troposphere and below the mesosphere. This layer contains the ozone layer. The ozone layer protects the UV rays from the sun. The planes fly in the stratosphere. This is a very dry and doesn't have much water vapor.
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Mesosphere

This layer is above the stratosphere. Its the third layer. Scientists know less about this layer than any other layer of the atmosphere. The mesosphere is hard to study. Weather balloons and jet planes cannot fly high enough to reach the mesosphere. The orbits of satellites are above the mesosphere.
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Thermosphere

The thermosphere is directly above the mesosphere and below the exosphere. This is the biggest layer out all of atmosphere's layers. This layer contains the Northern and Southern Lights. Charged particles (electrons, protons, and other ions) from space collide with atoms and molecules in the thermosphere at high latitudes, exciting them into higher energy states.
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Exosphere

The exosphere is the uppermost region of Earth's atmosphere as it gradually fades into the vacuum of space. Air in the exosphere is extremely thin - in many ways it is almost the same as the airless void of outer space.
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Layers of the atmosphere experiment