Transcript OH NO… Good Shot – TRY AGAIN!

An Interactive
Adventure
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Discover the Depths of the Earth
Time to Dig in…
 Level 1 – Earth’s Surface – The Lithosphere
 Level 2 – Earth’s Mantle - The Asthenosphere
 Level 3 – The Outer Core
 Level 4 – The Inner Core
 How do we KNOW these levels exist?
 Explore the Depths - Test Your Knowledge
The Lithosphere
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The Lithosphere is the
upper surface of the
earth composed of the
SOLID upper mantle
which is made up of the
earth’s crust including
both
Oceanic Crust
and
Continental Crust.
The Lithosphere
The various
Continental Plates
link together to
make up the
Lithosphere.
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The Earth’s Mantle
The earth’s mantle actually
exists in two distinct
layers. The upper Mantle
is composed of rock with
the consistency of plastic
(like silly putty) called
The Asthenosphere
The lower layer of the Mantle is rigid
and solid.
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The Earth’s Mantle
The Asthenosphere
The continental plates
drift over the soft
asthenosphere as the
heat of the earth’s
core rises creating
currents that
Result in
Continental Drift.
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The Outer Core
The Outer Core of
the Earth consists
of liquid rock
composed of Iron
with 12% sulphur
silicon, oxygen,
nickel and
potassium
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The Inner Core
The Inner Core of
the Earth consists of
SOLID rock
composed of Iron
with 10-20% nickel.
Some physicists believe
that the movement of
electrical charges
between the inner and
outer core produce the
earth’s magnetic field.
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How do we KNOW these levels exist?
Seismologists study Earthquakes.
Earthquakes produce shock waves
that travel through the earth and can
be measured on the other side of the
earth.
P waves (primary waves) go
through solid and liquid.
The vibrate differently
passing through solids
than when they pass in
liquid.
S waves (secondary waves)
only go through solids.
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How do we KNOW
these levels exist?
P waves (primary waves) go
through solid and liquid.
They vibrate differently
passing through solids
than when they pass in
liquid.
S waves (secondary waves)
only go through solids.
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Explore the Depths – Test Your Knowledge
Which level is SOLID Iron & Nickel?
A.
B.
C.
D.
Level 1 – The Lithosphere
Level 2 – The Asthenosphere
Level 3 – The Outer Core
Level 4 – The Inner Core
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Explore the Depths – Test Your Knowledge
Which level is LIQUID and is
composed of Iron & Nickel?
A.
B.
C.
D.
Level 1 – The Lithosphere
Level 2 – The Asthenosphere
Level 3 – The Outer Core
Level 4 – The Inner Core
Please “CLICK” on the Correct Answer
CORRECT… Way to GO!!!
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Explore the Depths – Test Your Knowledge
Upon which level does the crust of
the Earth drift?
A.
B.
C.
D.
Level 1 – The Lithosphere
Level 2 – The Asthenosphere
Level 3 – The Outer Core
Level 4 – The Inner Core
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CORRECT… Way to GO!!!
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Explore the Depths – Test Your Knowledge
Which level is SOLID and is
composed of the Continental Plates?
A.
B.
C.
D.
Level 1 – The Lithosphere
Level 2 – The Asthenosphere
Level 3 – The Outer Core
Level 4 – The Inner Core
Please “CLICK” on the Correct Answer
CORRECT… Way to GO!!!
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Explore the Depths – Test Your Knowledge
Which level probably produces the
Earth’s magnetic field?
A.
B.
C.
D.
Level 1 – The Lithosphere
Level 2 – The Asthenosphere
Level 3 – The Outer Core
Level 4 – The Inner Core
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CORRECT… Way to GO!!!
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Explore the Depths – Test Your Knowledge
On which level is found both
Oceanic & Continental crust?
A.
B.
C.
D.
Level 1 – The Lithosphere
Level 2 – The Asthenosphere
Level 3 – The Outer Core
Level 4 – The Inner Core
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CORRECT… Way to GO!!!
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Thank you for using this Tutorial
Resources
Unless indicated otherwise, all scientific information and graphics are taken from
Monroe, J., Wicander, R., and Hazlett, R. (2007) Physical Geology: Exploring the Earth.
6th Edition. California: Thomson Brooks/Cole.
“Major Tectonic Plates of the World” graphic retrieved April 13, 2008 from
http://rst.gsfc.nasa.gov/Sect2/F1-15.jpg
Continental “Convection Currents” graphic retrieved April 13, 2008 from
http://www.stvincent.ac.uk/Resources/EarthSci/Tectonics/images/convection.gif