Transcript Continental Driftx

What is this???
PANGAEA
WATCH MY EXAMPLE AND FOLLOW ALONG
WITH ME TO SET THIS UP
 Bottom Label: Continental Drift Theory
 Sections:
1. What is it?
2. What evidence supports it?
3. How does it happen?
4. What does it look like?

 The
earth’s continents were
once joined in a mega
continent called Pangaea and
gradually drifted apart.
 Developed by Alfred Wegner.
 1.
Fossils: Fossils of the
same ancient reptile were
found on South America
and Africa and no where
else.
 2.
Climate: Fossils of tropical
plants have been found in areas
that are now covered in ice.
Evidence of ice has been found
in areas that are now tropical.
 3.
Geology: Rocks that make up
the eastern part of South
America match rocks that make
up the western coast of Africa.
4. Puzzle Piece: If you pushed
Africa and South America
together, they look like they
would lock together like a giant
puzzle piece or a continental
best friend necklace.

Convection Currents: the constant
rising of hot magma and the falling of
cool magma in the mantle
◦ This movement causes Earth’s plates to
move

Scientists found coconut fossils in Antarctica
where it is very cold. Describe how this is
possible in at least 2 sentences.
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
The movement of the food coloring represents
the movement of magma in the Earth’s mantle
This movement is what causes Earth’s
continents to move away from each other
Pay attention to the Earth’s mantle
and crust
 What did you just see?
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Remind Me…
1.
2.
3.
4.
What is it?
What evidence supports it?
How does it happen?
What does it look like?
How would the position of
the continents have been
different if the inner core
was made of a solid block
of ice and not hot iron?
a. The continents would still
be one mega continent,
Pangaea
b. The continents would be
the same position as they
are today
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What is the name of the mega continent?
Who proposed the theory of continental drift?
What is the theory of continental drift?
What are the 3 types of evidence that support
this theory?
Why do the continents move apart?
How do convection currents cause the plates to
move?
Why is it possible we could find fossils of tropical
plants in Alaska?
How is it possible that similar animal fossils are
found on two separate continents?

Complete the activity on Continental
Drift and Convection Currents
◦ Use your notes and knowledge from our
class discussions!

Independent practices = SILENT

Study for LEQ #2 assessment
◦ You will take it at the beginning of next
class