1. Layers of the Atmosphere

3. Troposphere
troposphere begins at the Earth's surface and extends from 4 to 12 miles high.
This is the layer of the atmosphere in which we live.
Made mostly of oxygen and nitrogen
Temperature in the troposphere goes down as you go higher into the troposphere
Most dense layer of the atmosphere
Layer where most commercial airplanes fly
Layer where weather events take place

4. Stratosphere The ozone layer is located in the stratosphere
Temperature in the stratosphere goes up as you go higher into the stratosphere because of the absorption of ultraviolet rays by the ozone layer.
Layer where weather balloons gather data

5. Mesosphere Coldest atmospheric layer
Temperature goes down as you go higher into the mesosphere.

6. Thermosphere Thermosphere means “heat sphere”
Temperatures can rise to over Celsius, but there are very few molecules in this layer so you would not actually feel the heat

7. Exosphere the outermost layer of the atmosphere
Made mostly of hydrogen and helium
Extremely thin air
Layer where satellites orbit the earth