Earth’s Atmosphere ISN

Why is it cooler in Ashville than in Greenwood? Link Why is it cooler in Ashville than in Greenwood?

Essential Question ? How do the layers of Earth’s atmosphere compare to each other?

Atmospheric Gases Common Gases: Weather Gases: Trace Gases: Nitrogen Oxygen Found throughout all the layers Weather Gases: Water Vapor Carbon Dioxide Trace Gases: Argon, methane, etc. Not Very Important

Why is water vapor considered a weather gas? One minute to write your answer

Atmospheric Layers – From Space Down Exosphere: Cold; leads to space Thermosphere: Hottest Layer; air thin Mesosphere: Coldest Layer; meteors burn up here Stratosphere: Cold expect near ozone layer Troposphere: Weather occurs here

Why do your ears pop when you go to the mountains?

Atmospheric Pressure As you move away from Earth, the pressure decreases.

Atmospheric Temperatures Troposphere – Altitude increases, temperature decreases Stratosphere– Altitude increases, temperature increases Mesosphere– Altitude increases, temperature decreases Thermosphere– Altitude increases, temperature increases Exosphere – cold

Finish this statement: The temperature in the atmosphere ______________ depending on _____________________________.

Write three things you learned.