Exosphere Uppermost layer Beyond this lies space
Thermosphere Km Temperature goes up as altitude goes up Hottest layer, but doesn’t feel hot Very few particles
Ionosphere Between mesosphere and thermosphere Home of Auroras (Northern and Southern Lights) Radio waves are reflected to Earth Ionosphere Video Link
Mesosphere 49-81Km Coldest layer Temperature goes down as altitude goes up Meteors burn up in this layer ◦ Why would they “burn” when this layer is cold? ◦ First layer with enough air particles to make contact and destroy by friction.
Stratosphere Km Air is thin and has little moisture Lower part extremely cold, Average -60 Temperature goes up as altitude goes up Rise happens because of ozone layer Most jets fly here -Ozone layer Protects life on Earth by absorbing harmful UV radiation Stratosphere Video Link
Troposphere Up to 17 Km above Earth Layer we live in Lowest layer of the atmosphere Densest layer (has most air molecules) CO2, Water vapor, clouds, air pollution, weather, life forms Temperature goes down as altitude goes up Airplanes fly here