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Layers of the Earth. Open books to page 326. How are the earth ’ s layers similar to an egg? Shell= crust Layers Limitations?. Earth ’ s Layers. Make a model of Earth. Using paper, make a pie-shaped piece to resemble the Earth. On the front, label the following: Inner core - PowerPoint PPT Presentation
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Layers of the Earth
Open books to page
326.
Earth’s Layers
How are the earth’s layers similar to an egg?
Shell= crust
Layers
Limitations?
Make a model of Earth
Using paper, make a pie-shaped piece to resemble the Earth.
On the front, label the following:Inner coreOuter core
MantleLithosphere (includes Crust)
Open up your segment of the Earth and…
1.Label the state of matter of each layer.
2.What elements make each layer?
3.Inside the foldable, show where the asthenosphere is.
4.Others on board.
Page 326 -329.
Inner core
Outer core
Mantle
Asthenosphere(part of mantle)
Lithosphere(crust)
What is the center layer called?
What state of matter is it?
What is it made of?
SOLID
IRON AND NICKEL
INNER CORE
Inner core
Solid
Nickel and iron
Deepest layer, so….
Greatest pressure
Also the Hottest! (8,0000F)
The next layer of the Earth after theinner core would be the……
What state of matter is the outer core?
What elements are in the outer core?
OUTER CORE
LIQUID
Iron and Nickel
Outer core
Liquid
Due to flowof liquid metal,
gives us ourmagnetic field.
Nickel and iron
As the liquid iron and nickel in the outercore circulate, it creates a magnetic
field.
Where is there liquid nickel and iron?
Why do you think the inner core issolid and the outer core is liquid?
The core of our Earth is tremendously hot.It is believed to have a temperature of
7,000 degrees Celsius.Pressure keeps the inner core a solid,
but allows the outer core tobe a melted, liquid state.
So what 2 things increase as you travel toward the Earth’s center?
Heat and Pressure!
Mantle
solid and plasticSemi-solid, semi-liquid
Magnesium, IronSilicon, Oxygen
The mantleis a layer that is kind of like
tar on a hot day. It flows, butvery, very slowly.
.
Asthenosphere(upper layer
of the mantle)
Plastic (flows, likePeanut butter)
Convection currents here!
Magma
The asthenosphere is just below the lithosphere.
It is part of the mantle. The asthenosphere
is rock that flows slowly, like hot asphalt or
peanut butter.
The lithosphere includes the crust of the Earth and the upper mantle.. It is solid.
Crust:Oxygen
andSilicon
The outermost layer of our Earth iscalled the crust.
LavaMountains
Water Least pressure
Coolest
Lithosphere, which includes
the crustsolid
Oceanic and Continental Crust
3 miles thick 65 miles thickDeepest drilling about 7 miles
What is this layer? State of matter?
Inner core
Solid
What is this layer? State of matter?
Lithosphere
Solid
What is this layer? State of matter?
Mantle
Plastic
What is this layer? State of matter?
Outer core
Liquid
Relative Masses - Earth
http://www.uwgb.edu/dutchs/202ovhds/quakes.htm
Name the 5 basic layers of the Earth (mentioned in your book) in order of their temperatures, from highest to lowest.
Name the layer associated with this clip…CRUST
Name the layer associated with this clip…
OUTER CORE
Name the layer associated with this clip…
OCEANIC CRUST
Name the layer associated with these graphics…
CORE
Name the layer associated with this clip…
OUTER CORE
Name the layer associated with this clip…
Hot, Melted Fudge
Wrapper Lithosphere
mantle
Convection – What is it? Why do we care?Convection
Source: http://www.uwgb.edu/dutchs/EnvSC102Notes/102HowEarthWorks.HTM
1200 km
2200 km
2900 km
5-40 km
Our scale is: 60 km = 1 mm
Label the layers and state of matter.Show convection currents in mantle.
