Download The Atmosphere

Four
Systems
of
Our
Earth
Composition of Earth
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Earth Has 4 main systems that interact:
Earth’s
systems
Atmosphere
Hydrosphere
Biosphere
Geosphere
Air/gases
water
life
land/rock
The Atmosphere– layer of gas that
surrounds Earth more commonly known
as “air”.
Atmosphere.
How do you know its there
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Is this “air” that surrounds us considered
matter? Does it weigh anything? How do you
know?
Think about it and decide on an answer.
Talk in groups with the person who sits by
you
Be ready to tell the class what you decided
and why.
Weight of the atmosphere
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Gases are in the
atmosphere.
They are things we
learned about in the
periodic table:
Nitrogen, Oxygen,
Carbon Dioxide,
Hydrogen
It is matter! Sound
can travel through it.
Even though you can’t see
them, Atoms make up gases.
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Are some atoms bigger than others?
Are their atomic weights all the same?
Helium vs. Carbon Dioxide
Do you think of helium
as light and floating or
heavy and falling?
Do you think about
Carbon Dioxide as light
and floating or heavy
and falling….think about
the gas released from
dry ice… does it go up
or down?
http://jp.youtube.com/watch?v=
F239cINIADs
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Composition of Earth
Earth Has 4 main systems that interact:

The Atmosphere
 Mostly Nitrogen and Oxygen
 Water vapor is responsible for clouds and
precipitation
 Has layers
 Protects us from meteors and comets, x-rays,
gamma rays, ultra violet light
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The Hydrosphere
The Biosphere
The Geosphere
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Atmosphere
Exosphere--
Thermosphere--
Mesosphere--
Stratosphere--
Troposphere
Composition of Earth’s atmosphere

Earth Has 4 main
systems that interact:

The Atmosphere

layers
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Exosphere
Thermosphere
Mesosphere
Stratosphere
Troposphere
The Hydrosphere
The Biosphere
The Geosphere
Exosphere
Composition of Earth’s atmosphere

Earth Has 4 main systems
that interact:

The Atmosphere
 Troposphere



Stratosphere
 Mesosphere
 Thermosphere
The Hydrosphere
The Biosphere
The Geosphere
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Contains most clouds and
weather.
Temperature cools as you go
higher50% of sun’s energy
passes through, 50% is reflected
back.
Most of the troposphere’s heat is
from Earth (convection)
Exosphere
Atmosphere
Exosphere--
Thermosphere--
Mesosphere--
Stratosphere--
Contains most clouds and weather.
Temperature cools as you go higher50% of sun’s energy
passes through, 50% is reflected back.
Most of the troposphere’s heat is from Earth (convection)
Troposphere--
Troposphere and Clouds
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Among other gases there is water vapor in
the troposphere.
Clouds—form when air rises, cools to its dew
point, and becomes saturated (moist).
Water Vapor Demonstration
Water Cycle Demo
 Precipitation-falling
water in
the form of rain, freezing
rain, sleet, snow, or hail
Section 2: Earth’s Weather
Troposphere
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Weather—the atmosphere’s condition in
terms of temperature, cloud cover, wind
speed and direction, humidity, and air
pressure.
What are different types of weather?
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___________________________________
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Section 2: Earth’s Weather
Troposphere
Temperature—a measure of how fast air
molecules are moving.
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When molecules are moving rapidly, temperature
is high.
Celsius and Fahrenheit thermometers measure
air temperature.
Section 2: Earth’s Weather
Troposphere
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What is the temperature like today?
Hot/ Cold ______________________
Degrees Fahrenheit_______________
Degrees Celsius _________________
Section 2: Earth’s Weather
Troposphere
Energy is transferred between fast-moving
molecules and slower-moving molecules.
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Give an example of something heating up due to
conduction:
__________________________________
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Conduction—transfer of energy when molecules collide.
Convection occurs when warm air rises and cool air sinks.
Give an example of something heating up due to
convection:
___________________________________
Section 2: Earth’s Weather
Troposphere
Air pressure— air weight that varies over
Earth’s surface.
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Warmer air is less dense and exerts less
pressure.
Cooler air is more dense and exerts more
pressure.
Air Pressure Demonstration—
Write about what you learned
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Humidity— the amount of water vapor in
the air
Temperature affects how much moisture is
in the air.
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Dewpoint—when the air is holding as much
water vapor as it can
Relative humidity— a measure of the
amount of water vapor present compared to
the amount that could be held at a specific
temperature.
THAT WAS ALL ABOUT THE
TROPOSPHERE!!!
Lets cover the
other layers
briefly.
 Go back up to
the graphic
organizer at the
top of your notes
and fill in info
about each layer.
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Atmosphere
Exosphere--
Thermosphere--
Mesosphere--
Stratosphere--
Troposphere
Composition of Earth’s atmosphere

Earth Has 4 main
systems that interact:

The Atmosphere


Troposphere
Stratosphere



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10 km to 50 km
contains ozone that absorbs
much of the Sun’s ultraviolet
radiation.
Gets warmer as you go up.
Mesosphere
Thermosphere
The Hydrosphere
The Biosphere
The Geosphere
Atmosphere
Exosphere--
Thermosphere--
Mesosphere-
Stratosphere--10 km to 50 km ,
contains ozone that
absorbs much of the Sun’s ultraviolet radiation. , Gets warmer
as you go up.
Troposphere--Contains most clouds and weather. Most
of the troposphere’s heat is from Earth Temperature cools
about 6.5 degrees Celsius per kilometer of altitude.
Composition of Earth’s atmosphere

Earth Has 4 main
systems that interact:

The Atmosphere
 Troposphere
 Stratosphere
 Mesosphere



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50-85 km
The coldest part of the
atmosphere. It can get down to
-90°C in the mesosphere.
Thermosphere
The Hydrosphere
The Biosphere
The Geosphere
Atmosphere
Exosphere--
Thermosphere--
Mesosphere- 50-85 km, The coldest part of the
atmosphere. It can get down to -90°C in the mesosphere. -
Stratosphere--10 km to 50 km ,
contains ozone that
absorbs much of the Sun’s ultraviolet radiation. , Gets warmer
as you go up.
Troposphere--Contains most clouds and weather. Most
of the troposphere’s heat is from Earth Temperature cools
about 6.5 degrees Celsius per kilometer of altitude.
Composition of
Earth’s atmosphere

Earth Has 4 main systems that
interact:
 The Atmosphere




Troposphere
Stratosphere
Mesosphere
Thermosphere



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80-500 km
Temperatures increase up to 1,700°C
Filters out x-rays and gamma rays
from the sun.
This is an image of the space shuttle
as it is orbiting around the Earth. The
space shuttle orbits in the
thermosphere of the Earth.
The Hydrosphere
The Biosphere
The Geosphere
Atmosphere
Exosphere--
Thermosphere-- 80-500 km, Temperatures increase up to
1,700°C, Filters out x-rays and gamma rays from the sun. , This is an
image of the space shuttle as it is orbiting around the Earth. The space
shuttle orbits in the thermosphere of the Earth.
Mesosphere--The temperature drops when you go higher, like
it does in the troposphere. Coldest part of the atmosphere
Stratosphere--from 10 km to 50 km above Earth’s
surface, this layer contains ozone that absorbs much of the
Sun’s ultraviolet radiation.
Troposphere--Contains most clouds and weather., Most of the
troposphere’s heat is from Earth, Temperature cools about 6.5 degrees
Celsius per kilometer of altitude.
Exosphere
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The last layer of the atmosphere
Difficult to tell where it stops and space
begins
Very few atoms in this layer of the
atmosphere
Atmosphere
Exosphere--The last layer of the atmosphere, Difficult to
tell where it stops and space begins, Very few atoms in this
layer of the atmosphere
Thermosphere-- The air is really thin that high up. The
temperature changes with the solar activity. If the sun is active,
temperatures in the thermosphere can get up to 1,500°C or higher!
Mesosphere--The temperature drops when you go higher, like
it does in the troposphere. Coldest part of the atmosphere
Stratosphere--from 10 km to 50 km above Earth’s
surface, this layer contains ozone that absorbs much of the
Sun’s ultraviolet radiation.
Troposphere--Contains most clouds and weather., Most
of the troposphere’s heat is from Earth, Temperature cools
about 6.5 degrees Celsius per kilometer of altitude.
Ionosphere
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Within the mesosphere and thermosphere is
a layer of electrically charged particles. This
layer allows radio waves to travel across the
country to another city.
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