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Layers of our Atmosphere Prezi


McKenna Groth

on 20 November 2012

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Transcript of Layers of our Atmosphere Prezi

photo credit Nasa / Goddard Space Flight Center / Reto Stöckli The Order of the Layers! The layer closest to the ground
is the Troposphere.
Then comes the Stratosphere
then the Mesosphere.
Last but not least,
the layer that goes up into space...
the Thermosphere!
Inside the Thermosphere,
the lower ionosphere and
the exosphere. Stratosphere The stratosphere is located 12-50km above the Earth's surface. It is the second layer in our atmosphere. The higher part of the stratosphere is surprisingly warmer than the lower part of the stratosphere. The lower stratosphere is about -60 degrees Celsius. The higher layer is warmer because the middle part of the stratosphere has a layer of air where there is a lot more ozone than in the rest of the atmosphere.The energy is converting into heat when the ozone absorbs energy from the sun, thus warming the air. Thermosphere The thermosphere is the highest layer of our atmosphere. It extends from about 80km and into space. The air at 80km is only 0.001 percent as dense of air at sea level. The thermosphere is very hot (because the sunlight hits the thermosphere first), up to about 1,800 degrees Celsius. Even though it gets up to 1,800 degrees Celsius, on an ordinary thermometer, the temperature(temperature=average amount of energy of motion of each molecule of a substance) would show up well below 0 degrees Celsius. The temperature is high because the molecules in the thermosphere move very rapidly, but they are spread far apart in the thin air. There is not enough to join with the thermometer to warm it up. Mesosphere The Mesosphere is located
50-80km above the Earth's surface. It is the layer 3rd closest to the Earth's surface.
The temperature in outer
mesosphere reaches
about -90 degrees Celsius. The Troposphere! The Troposphere, the closest layer to the Earth's surface, is found 0-12km above the Earth's surface. When the altitude in the troposphere increases, the temperature decreases. At the top of the troposphere, the temperature is about -60 degrees Celsius. Now let's get this straight.... The atmosphere has 4 main layers;
the Troposphere,
the Stratosphere,
the Mesosphere,
and the Thermosphere.
It also has 2 minor layers, the Exosphere and the Ionosphere. Layers of our
Atmosphere! :) Random facts about the troposphere...
Did you know that tropo- means "turning" or "changing"?
The troposphere is where the Earth's weather occurs. Random facts about the stratosphere...
Did you know that strato- means "layer" or "spread out"?
The stratosphere contains the ozone layer(ozone is the three atom form of oxygen).
In the stratosphere, the ozone layer absorbs ultraviolet radiation. Random facts about the mesosphere...
Meso- means "middle" and the mesosphere happens to be the middle layer.
The mesosphere is important because it protects the Earth's surface from being hit by MOST meteoroids. Meteoroids produce meteor trails because most meteoroids burn up in the mesosphere. Random facts about the thermosphere...
The thermosphere goes out into space and has no definite outer limit.
The thermo- in thermosphere means "heat."
The thermosphere contains the 2 minor layers, the ionosphere and the exosphere. By
~McKenna Groth There are some minor layers in our atmosphere along with
the 4 main layers. They are both
located in the thermosphere.
They are the ionosphere
and the exosphere. Minor layers... The ionosphere... The lower layer of the two, the ionosphere, is located at 80-400km in the thermosphere above the earth's surface. It is there that the brilliant night displays are, and they can be seen in the Northern Hemisphere. In Northern Hemisphere these dazzling shows are called aurora borealis, or northern lights. Random facts about the ionosphere...
Ions are electrically charged particles, and they become electrically charged by energy from the sun striking gas molecules.
Northern lights are created because particles (from the sun) enter the ionosphere close to the poles. The particles hit atoms in the ionosphere and cause them to glow. The exosphere is the uppermost layer of our atmosphere. It is found 400km and goes outward for thousands of kilometers. Because the exosphere gradually fades into space, it has no definite limit. The exosphere... Random facts about the exosphere...
Did you know exo- means "outer"?
Satellites orbit the earth in the exosphere, for example, phone calls and television pictures are relayed by way of communications satellites. Overall... The troposphere : where weather occurs.
The stratosphere : where the ozone layer is located.
The mesosphere : where most meteoroids are burned up.
The thermosphere : where 2 minor layers can be found.
The ionosphere : where aurora borealis takes place.
And last...
The exosphere : the layer with no definite height.
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