Download - earth atmosphere for kids understanding
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AtmosphereEarth’s
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Earth’s atmosphere Earth’s atmosphere is a layer of gases surrounding the planet. The Earth is surrounded by a blanket of air, which we call the atmosphere.
Atmosphere:
Absorbs the energy from the Sun protects us from high-energy radiation The atmosphere protects and supports life. It burns incoming meteoroids.
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Blue layer is an atmosphere
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Atmosphere act as a blanket to our earth
Orange explains
how
atmosphere
protect the
earth
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Earth’s atmosphere Earth’s atmosphere is made of a mixture of gases called
air. Nitrogen gas makes up about 78% of Earth’s
atmosphere.
The second most abundant gas is oxygen, which makes up 21% of Earth’s atmosphere.
The third Argon (Ar, 0.9%).
Carbon Dioxide (CO2, 0.03%).
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Lets Understand It With Pizza
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Layers of Atmosphere The atmosphere has four layers
Thermosphere
Mesosphere
Stratosphere
Troposphere
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Troposphere Lowest and thinnest layer
17 km at equator, 7 km at poles
90% of the atmosphere’s mass
Temperature decreases with altitude 6°C per kilometer Top of troposphere averages –50°C
Where weather occurs Air is warmest at the bottom of the troposphere near ground level. Higher
up it gets colder
Boundary between the troposphere, and the stratosphere is called the tropopause
View of troposphere layer from an airplane's window.
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AEROPLANES Fly on Troposphere layer
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Stratosphere Extends from 10 km to 50 km
Above the ground
Here UV radiation are absorted
Temperature increases with altitude
Almost no weather occurrence
No air mixing in this layer.
Contains high level of ozone Ozone layer
Upper boundary is called stratopause
temp which change slowly in stratosphere.
Stop changing here
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Air balloon can go
upto Stratosphere
layer
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Stratosphere
Troposphere
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Mesosphere COLDEST Extends to almost 80-85 km high
Meteoroids get burn in this layer
Most coldest layer(-100)C
Temperature decreases as altitude increases.
The boundary between the mesosphere and the next upper layer is called mesopause.
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Thermosphere Above the mesosphere and extends to almost 500
km high
Hottest layer
Temperature increases with altitude.
The upper Thermosphere is called the Ionosphere; it extends from 80 to 550 km above the Earth's surface.
Ionosphere absorb radiation from the sun and
become electrically charged.
Electrically charged particles are called ions, hence the name: the Ionosphere.
Readily absorbs solar radiation
Temperature can go as high as 1,500C
Reflects radio waves. International space station are present in this layer.
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Found In THERMOSHERE Layer
INTERNATIONAL SPACE STATION
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AURORAS• An aurora is a natural light display in the sky, usually of greenish color but sometimes
red or blue.
• This natural phenomenon usually occurs in areas known as the 'auroral zone' near the poles of the in the north & in the south.
• Aurora is caused by the collision of energetically charged particles with atoms in the high altitude thermosphere within our atmosphere.
• The Sun contain particles which gets pulled into the Earth's magnetic pole fields.
• As they accelerate towards the Earth, collisions occur between these ion particles and nitrogen and oxygen atoms in our atmosphere, releasing energy in the form of amazing aurora lights
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Layers of
Atmosphere
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BLAH BLAH
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Layers of the Atmosphere
The four layers of the atmosphere include:
1. the troposphere, where we live;
2. the stratosphere, which contains the ozone layer;
3. the mesosphere, where meteors burn; and
4. the thermosphere, where satellites orbit Earth.
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