Atmosphere
اسلاید 1: AtmosphereThe surrounding air of the Earth
اسلاید 2: Layers of the atmosphereThere are 4 layers in the atmosphereThey are the troposphere, mesosphere, thermosphere, and stratosphere
اسلاید 3: TroposphereThis is the layer that is closest to the surface of the earthIt’s elevation ranges from 0 to 10 km
اسلاید 4: StratosphereThis layer sits on top of the troposphereIt’s elevation ranges from 10 km to around 25 kmThis layer contains the ozone layer, which protects us from harmful sunlight
اسلاید 5: MesosphereThis layer is above the stratosphereIt’s elevation ranges from 25 to 100 km
اسلاید 6: Thermosphere This is the highest layer of the atmosphereIt’s height ranges from 100 to 400 kmThis is where most small meteorites burn up and is also the location in the atmosphere that the northern lights occur (aurora borealis)
اسلاید 7: Composition of AirThere are many different types of gasses in the atmosphereThey include nitrogen, oxygen, argon, carbon dioxide and other noble gassesThe gas that is most abundant is nitrogen
اسلاید 8: This powerpoint was kindly donated to www.worldofteaching.comhttp://www.worldofteaching.com is home to over a thousand powerpoints submitted by teachers. This is a completely free site and requires no registration. Please visit and I hope it will help in your teaching.
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