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Transcript of EARTH’S ATMOSPHERE Chapter 9. Earth’s Atmosphere Main Ideas Lesson 1: Energy from the Sun The...
![Page 1: EARTH’S ATMOSPHERE Chapter 9. Earth’s Atmosphere Main Ideas Lesson 1: Energy from the Sun The Sun is the major source of energy for Earth Lesson 2: Energy.](https://reader036.fdocuments.net/reader036/viewer/2022062321/56649d995503460f94a83f57/html5/thumbnails/1.jpg)
EARTH’S ATMOSPHERE
Chapter 9
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Earth’s AtmosphereMain IdeasLesson 1: Energy from the Sun
The Sun is the major source of energy for Earth
Lesson 2: Energy Transfer in the Atmosphere
Earth’s atmosphere distributes thermal energy.
Lesson 3: Air CurrentsSolar energy is responsible for the continuous
movement of air in the troposphere, which transports and distributes thermal energy
around Earth.
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Earth’s Atmosphere
The Sun’s energy and Earth’s atmosphere are critical for creating the
conditions needed for life on Earth.
So What?!
![Page 4: EARTH’S ATMOSPHERE Chapter 9. Earth’s Atmosphere Main Ideas Lesson 1: Energy from the Sun The Sun is the major source of energy for Earth Lesson 2: Energy.](https://reader036.fdocuments.net/reader036/viewer/2022062321/56649d995503460f94a83f57/html5/thumbnails/4.jpg)
EARTH’S ATMOSPHERE
Energy from the Sun
Chapter 9, Lesson 1
![Page 5: EARTH’S ATMOSPHERE Chapter 9. Earth’s Atmosphere Main Ideas Lesson 1: Energy from the Sun The Sun is the major source of energy for Earth Lesson 2: Energy.](https://reader036.fdocuments.net/reader036/viewer/2022062321/56649d995503460f94a83f57/html5/thumbnails/5.jpg)
What You’ll Learn:• Identify some of the differences between
layers of the atmosphere.• Describe how solar radiation reaches Earth’s
surface.• Understand that solar radiation has its
maximum in the range of visible light.• Explain why the sky looks blue.• Identify the Sun as a constant and almost
uniform source of energy for Earth.So What?
The heat from the Sun helps keep Earth’s surface warm.
![Page 6: EARTH’S ATMOSPHERE Chapter 9. Earth’s Atmosphere Main Ideas Lesson 1: Energy from the Sun The Sun is the major source of energy for Earth Lesson 2: Energy.](https://reader036.fdocuments.net/reader036/viewer/2022062321/56649d995503460f94a83f57/html5/thumbnails/6.jpg)
VocabularyUse your book to locate the definitions for the Review
Vocabulary, New Vocabulary, and Academic Vocabulary words on page 94 of your
Science Notebook.
![Page 7: EARTH’S ATMOSPHERE Chapter 9. Earth’s Atmosphere Main Ideas Lesson 1: Energy from the Sun The Sun is the major source of energy for Earth Lesson 2: Energy.](https://reader036.fdocuments.net/reader036/viewer/2022062321/56649d995503460f94a83f57/html5/thumbnails/7.jpg)
Earth’s Atmosphere
Identify the main components of the atmosphere and list their percentages.
Composition of Earth’s Atmosphere
Nitrogen
78%
Oxygen
21%
Particles, Water vapor, Argon, Carbon Dioxide, Ozone:
1%
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Layers in the AtmosphereIdentify the locations of the four layers of the atmosphere. Describe the properties of each
layer.
Earth’s Surface
1. ____________________
______________
2. ____________________
______________
3. ____________________
______________
4. ____________________
______________
_________________________
__________________
_________________________
__________________
_________________________
__________________
thermosphere
mesosphere
stratosphere
troposphere Holds most of Earth’s air
Increasing air temperature with
altitude
No defined upper limit
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Summarize It!
Summarize the main ideas of the above
sections in two bullet points.
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The Sun’s Continuous SpectrumDefine electromagnetic spectrum. List the 3 types of electromagnetic radiation that make up 99% of solar
radiation.
Electromagnetic spectrum:
Solar radiation consists of:
1.
2.
3.
The entire range of wavelength or frequencies of electromagnetic radiation.
Ultraviolet lightVisible light
Infrared radiation
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The Sun’s Continuous SpectrumCompare and Contrast infrared and ultraviolet
radiation.
*Longer wavelength than visible light*Felt as heat
*Shorter wavelengt
h than visible
light*Causes
skin to tan or burn
Invisible to
humans
Infrared Radiation Ultraviolet Radiation
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Summarize It!
Summarize three main ideas of the above
section.
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The Sun’s Continuous SpectrumModel what happens to the Sun’s radiation that strikes
Earth’s atmosphere.
Be sure to indicate
the following
statistics...
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The Sun’s PowerSummarize how the angle at which the sun’s radiation strikes Earth affects temperatures.
When a beam of sunlight reaching Earth is almost perpendicular to the surface, as occurs near the equator, the beam is
concentrated over a small area and temperatures are warmer. When
sunlight strikes Earth’s surface at a low angle, as occurs at the poles, the
radiation is spread out over a larger area.
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The Sun’s PowerCreate a concept map about the importance of solar
energy on Earth.
Solar Energy
Provides Light
Visible Light Infrared
RadiationUltraviolet
Light
Warms Air & Land @
Earth’s surface
Powers Water Cycle
Powers Photosynt
hesis in Living
Organisms
Forms the Base of
the Food Chain
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Summarize It!
Summarize two main ideas of the above
section.
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EARTH’S ATMOSPHERE
Energy Transfer in the Atmosphere
Chapter 9, Lesson 2
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What You’ll Learn:• Describe how the air is heated from the
lower layers of the atmosphere.• Explain why hot air rises and cold air
sinks.• Distinguish the properties of the
radiation emitted by the Sun from those of the radiation emitted by Earth.
• Identify the effects of greenhouse gases on Earth’s climate.So What?Heat energy from the Sun that is
distributed through the atmosphere helps keep Earth warm.
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VocabularyUse your book to locate the definitions for the Review
Vocabulary, New Vocabulary, and Academic Vocabulary words on page 98 of your
Science Notebook.
![Page 20: EARTH’S ATMOSPHERE Chapter 9. Earth’s Atmosphere Main Ideas Lesson 1: Energy from the Sun The Sun is the major source of energy for Earth Lesson 2: Energy.](https://reader036.fdocuments.net/reader036/viewer/2022062321/56649d995503460f94a83f57/html5/thumbnails/20.jpg)
Review: Radiation, Conduction, & Convection
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Conduction in AirComplete the graphic organizer below with the 3 types of
heat transfer.
Heat Transfer
Occurs by
Conduction Convection Radiation
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Convection in AirSummarize why increasing the temperature of air
changes its density.
As the temperature of air increases, the kinetic energy of its particles increases and its molecules move farther apart. As the molecules move farther apart,
the density of the air decreases because fewer molecules occupy the space
available.
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Convection in AirModel the way in which convection currents affect air circulation patterns in a room. Use arrows to
show the path of air movement. Label the arrows to indicate warm air and cool air.
WARM AIR
COLD AIR
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Summarize It!
Summarize the main ideas of the above
sections in two bullet points.
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Radiation Traveling through SpaceCompare and Contrast the three forms of heat transfer.
Radiation Conduction Convection
Does it need a medium?
How is energy
transferred?
no
As electro
-magne
tic waves
yes
Through
collisions
between
particles
Through
movements of
air
yes
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Radiation Traveling through SpaceCreate a drawing to show how Earth maintains a
radiation balance.
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Radiation Traveling through SpaceCreate a drawing to show how Earth maintains a
radiation balance.
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Why is it cold at the poles?
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Radiation Traveling through SpaceIdentify three greenhouse gases. Then explain how
scientists think greenhouse gases might play a role in global warming.
1. __________________________ 2. _______________________ 3. ________________
Role in Global Warming:
carbon dioxide
water vapor
methane
Greenhouse gases prevent radiation given off by Earth from going out into space and redirect it toward Earth. Increased amounts of greenhouse gases are being released into the atmosphere.
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Summarize It!
Summarize two main ideas of the above
sections.
![Page 31: EARTH’S ATMOSPHERE Chapter 9. Earth’s Atmosphere Main Ideas Lesson 1: Energy from the Sun The Sun is the major source of energy for Earth Lesson 2: Energy.](https://reader036.fdocuments.net/reader036/viewer/2022062321/56649d995503460f94a83f57/html5/thumbnails/31.jpg)
EARTH’S ATMOSPHERE
Air Currents
Chapter 9, Lesson 3
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What You’ll Learn:• Describe how solar energy gives rise
to winds.• Explain why Earth’s surface is heated
unevenly.• Understand how pressure difference
affect winds.• Explain how great air currents circle
Earth, transporting heat and water vapor.
So What?Air currents transport and distribute heat
throughout Earth’s atmosphere.
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VocabularyUse your book to locate the definitions for the Review
Vocabulary, New Vocabulary, and Academic Vocabulary words on page 101 of your
Science Notebook.
![Page 34: EARTH’S ATMOSPHERE Chapter 9. Earth’s Atmosphere Main Ideas Lesson 1: Energy from the Sun The Sun is the major source of energy for Earth Lesson 2: Energy.](https://reader036.fdocuments.net/reader036/viewer/2022062321/56649d995503460f94a83f57/html5/thumbnails/34.jpg)
Local Winds & EddiesSequence the Earth materials to indicate how rapidly each heats up when it absorbs solar
radiation.Increasing Temperature
Less Radiation Absorbed
More Radiation Absorbed
1. Snow & Ice
2. Sand
3. Water 4. Forest
5. Asphalt & Concrete
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Local Winds & EddiesCreate two diagrams to show the movement of air in an updraft and in a downdraft. Show heated,
less dense air and cooler, denser air. Use arrows to show the direction of movement.
less dense
more dense cooler, denser air sinks
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Summarize It!
Summarize two main ideas of the above
sections.
![Page 37: EARTH’S ATMOSPHERE Chapter 9. Earth’s Atmosphere Main Ideas Lesson 1: Energy from the Sun The Sun is the major source of energy for Earth Lesson 2: Energy.](https://reader036.fdocuments.net/reader036/viewer/2022062321/56649d995503460f94a83f57/html5/thumbnails/37.jpg)
Air Currents Around EarthModel the directions in which winds blow in the
Northern and Southern Hemispheres as a result of the Coriolis effect.
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Air Currents Around EarthComplete the graphic organizer below to identify the cells in the three-cell model of air movement.
Three-Cell Model
From the
_______toward
the _____ until
it sinks near
____________
From the
______ toward
the ________
until it sinks near
____________
Between 30°° and 60° latitude
Hadley Cell
Polar Cell
Ferrel Cell
equatorpole
s30°
latitude
polesequator
60° latitude
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Air Currents Around EarthDefine Jet Stream.
Jet Stream: strong, continuous winds found in the troposphere.
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Summarize It!
Summarize three main ideas of the above
sections.