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Layers of the Atmosphere. Layers of the atmosphere. Atmosphere is divided into layers according to changes in temperature. Gravity holds the atmosphere on the earth. Layers from the surface of the Earth outward are Troposphere Stratosphere Mesosphere Thermosphere. Troposphere.
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Layers of the atmosphere • Atmosphere is divided into layers according to changes in temperature. • Gravity holds the atmosphere on the earth. • Layers from the surface of the Earth outward are • Troposphere • Stratosphere • Mesosphere • Thermosphere
Troposphere • First layer • It is where we live • Where weather occurs • Temperature drops as you rise
Stratosphere • Second layer • Jet stream is located here • Ozone layer is located here. Ozone (O₃) protects us from harmful radiation from space. • Temperature goes up as you rise
Mesosphere • Third layer • Temperature goes down as you rise • Dust from space (meteors) burn up in this layer (unless they are really big)
Thermosphere • Has two parts and the temperature rises but the atoms are too spread out to feel warm. • Ionosphere – (made of ions) we use it for radio communications because radio signals bounce off this layer. Auroras occur here. • Exosphere (outer layer) the atoms are very spread out and is where out satellites orbit.