Download Inner Core - Net Start Class

LAYERS OF THE EARTH
Assignment #39
EARTH’S LAYERS
How are the earth’s
layers similar to an egg?
Shell = crust
Layers (yolk,egg white)
Limitations?
Make a model of the Layers of the Earth
Using paper, make a pie-shaped piece to
resemble the Earth.
On the front, label the following:
 Inner core
 Outer core
 Lower Mantle
 Asthenosphere
 Lithosphere (includes Crust)
Outside of Foldable
Lithosphere
Asthenosphere
Asthenosphere
Lower
Mantle
Mantle
Outer Core
Inner
Core
On the inside, we will put the following
for each layer of the Earth:
State of matter
Elements
Temperature
Other
Outside of Foldable
Lithosphere
Asthenosphere
Asthenosphere
Lower
Mantle
Mantle
Outer Core
Inner
Core
Lithosphere
(part of mantle, includes the crust)
Asthenosphere
(part of mantle)
Mantle
Outer core
Inner core
Inner Core
The center layer
What is the state of matter?
solid
What elements make up the inner core?
Fe (Iron) and Ni (Nickel)
Temperature?
5000° C
Deepest layer, so….
greatest pressure
Inner core
• Solid
• Nickel (Ni) and
Iron (Fe)
• 5000° C
Outer Core
The next layer after the inner core
What is the state of matter?
liquid
What elements make up the inner core?
Fe (Iron) and Ni (Nickel)
Temperature?
2200° C
Other? Due to flow of liquid metal, this
gives Earth its magnetic field.
Outer core
• Liquid
• Nickel (Ni) and
Iron (Fe)
• 2200° C
• Magnetic Field
Circulation of molten metal within Earth’s core helps to create
a magnetic field. As a result, Earth has an immense magnetic
field surrounding it, just as there is a magnetic field around a
bar magnet.
Why is the inner core a solid and the outer
core a liquid?
The core of our Earth is tremendously hot. It is
believed to have a temperature of 7,000° C.
Pressure keeps the inner core a
solid, but allows the outer core to
be a melted, liquid state.
What 2 things increase as you travel
towards the Earth’s center?
Lithosphere
Asthenosphere
Asthenosphere
Lower Mantle
Mantle
Outer Core
Inner
Core
NOTE: In your
journal, write what
you see in red. This
goes next to the
foldable.
Mantle
What is the state of matter?
solid
What elements make up the mantle?
Mg (Magnesium), Fe (Iron), Si (Silicon), and O (Oxygen)
Temperature? 870° C
Lower
Mantle
• solid
• Mg (Magnesium), Fe
(Iron), Si (Silicon), & O
(Oxygen)
• 870° C
Asthenosphere
• The asthenosphere is just below
the lithosphere.
• It is the upper part of the mantle.
• The asthenosphere is rock that
flows slowly, like hot asphalt or
peanut butter.
Asthenosphere
• Upper layer of the mantle.
• What is the state of matter?
Plastic, flows like peanut butter
• Magma
• Convection Currents!
Asthenosphere
• plastic
• Mg (Magnesium), Fe
(Iron), Si (Silicon), &
O (Oxygen)
• magma
• convection currents
Lithosphere
solid
• What is the state of matter?
• Includes the crust and a little of the
upper mantle. The outermost layer of
our Earth is called the crust.
• What elements make up the crust?
O (Oxygen) and Si (Silicon)
• Lava, mountains, water, least pressure,
coolest
Outside of Foldable
Crust (solid)
Lithosphere
O (Oxygen) &
Si (Silicon)
Asthenosphere
Lower Mantle
Outer Core
Inner
Core
Color a thin line on
the outside of the
foldable (top of
Lithosphere) to
represent the crust
(shown in red here).
Outside of Foldable
Lithosphere
Asthenosphere
Lower Mantle
Mantle
Outer Core
Inner
Core
Outside of Foldable
Crust (solid)
O (Oxygen) &
Si (Silicon)
Lithosphere
Asthenosphere
Lower Mantle
Mantle
Outer Core
Inner
Core