The atmosphere that surrounds the Earth consists of several different layers as you can see in an atmospheric PowerPoint diagram. The different layers are based on temperatures, not the amount of oxygen in each section.
This is the part of the atmosphere where we live and is closest to the surface of the Earth. The troposphere contains about 75% of the air found in the atmosphere and nearly all the water vapor. Most of the weather will be contained within the troposphere, including the wind, rain, snow, and other precipitation. The pressure also decreases rapidly upon reaching the top of the troposphere which causes the air to expand.
The lowest part of the troposphere is called the boundary layer where the motion of the air is affected by the surface features of the Earth. The tropopause is the top area of the troposphere and encounters the stratosphere.
The stratosphere is the area that extends about 30 miles above the troposphere. Here, the air that is present is warmer compared to the top of the troposphere because of heating by the ultraviolet (UV) light from the sun. Youâ€™ll find most of the ozone layer in the stratosphere as well which absorbs or deflects most of the UV light away from the Earth.
This layer is directly above the stratosphere and the temperatures decrease because of the lack of air to heat. In fact, temperatures plummet to about 194F degrees in the mesosphere as it reaches the thermosphere.
Thermosphere or Ionosphere
The layer rests above the mesosphere and the temperatures begin to rise again because of the combination of UV light and x-ray radiation that emanates from the sun. This layer of the atmosphere extends about 50 miles above the mesosphere and is also called the ionosphere because the solar radiation is so intense, it separates the electrons from atoms which creates ions that are positively charged.
Because the ionosphere can absorb and reflect radio waves, it is possible to hear shortwave radio transmissions from other parts of the world. This is because the radio waves will bounce off the ionosphere and reach places that are not in a direct line of sight.
Located about 300 miles above the surface of the Earth is the exosphere. While there are atoms of oxygen and hydrogen present, they are so few that they rarely meet. Instead, many of these atoms will either plunge deeper into the atmosphere or hurtle off into space.
The highest layer of the atmosphere, this is where electrons and protons are concentrated in bands that circle the Earth from 2,000 to 10,000 miles above the surface. These magnetically charged lines will capture protons and electrons and are the cause of the Van Allen radiation belts.
Explain the atmosphere and all of its unique layers to your students with ease by using the Atmosphere Layers PowerPoint Diagram. The Atmosphere Layers PowerPoint Diagram is a single, fully editable PowerPoint slide that is able to be edited with icons, text and colors. All of the layers of the atmosphere are labeled and are distinct from one another in order to make clear their differences. The troposphere is depicted by a grassy field. The topopause is depicted in front of the midsection of a mountain. The ozone layer and stratosphere is also labeled there. Just above is the stratospause, while the mesosphere is labeled where planes fly. A rocket crosses the boundaries between the mesopause and the themosphere, and then finally the atmosphere is labeled at the top.