Forming our Earth
The 3 parts of the earth
1. The crust is less than 25 mi
thick and is rocky
2. The mantle is a liquid
plastic-like layer
3. Outer core liquid Fe-Iron,
and S-Sulfur
4. Inner Core Solid Fe-Iron
Draw this model and label Crust,Mantle,
Inner Core, and Outer Core
Earth’s plates
Earth’s moving plates
Plate tectonics-
Continental Drift-
• A theory stating that
the crust of the Earth is
composed of plates
moving on the molten
mantle below.
• Movement of
the continents
over the Earth's
surface.
Continental Drift: Check it out!
• Click on earth
• Why do they not fit
perfectly back together?
The Untold Tragedies of Continental
Drift
• Using continental
drift to predict the
future!
• Click cartoon!
If Wegener only knew…
Convection
Go back and look at your
drawing of the parts of the Earth
This is the current theory of how the
continental plates drift
• Convection- The transfer of heat by a moving
fluid.
• Convection currents in the mantle moves the
Lithosphere
Two types of movement
Lithospherethe upper
mantle and
the crust of
the earth
together.
AsthenosphereThe middle of
the mantle
containing
convection
currents
Words to Know for tomorrow
(Warning: below words have swag!)
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Continental Drift
Tectonic Plates
Convection Currents
Lithosphere
Asthenosphere
Draw it
• On the left side….draw AND label the lithosphere
and asthenosphere on something else that has
layers. It does not have to make sense.
• Example
1. Lithosphere= icing
2. Asthenoshpere= cupcake
Does not have to be food, but something original!
Then write a sentence, if this was like the earth
then what would the asthenosphere make
move……….SPRINKLES!!!