This a template for tectonic plates in Grade 10 quarter 1 lesson

1. Then
Wegener proposed that all continents
were once part of a single landmass or
supercontinent called the Pangaea.
Now
Pangea broke up millions of years ago,
and continents began to “drift” to reach
their present-day positions.
PERMIAN
250 million years ago
PRESENT DAY
Continental Drift Theory

2. Early scientists believed that Earth contracted as it
cooled, forming “wrinkles” or mountains.
How does this differ from
the current explanation of
mountain building?

3. • Get to know the scientist
who introduced the
theory of continental
drift.
Learning
Outcomes
• Explain the theory of
continental drift.
• Show how continents
look like in the past.

4. He first presented his hypothesis in
1912. In 1915, he published “The
Origin of Continents and Oceans,”
which contained his theory on
continental drift.
Alfred Wegener
Wegener was a German
geophysicist and meteorologist.

5. Why did geologists and other experts initially reject Wegener‘s theory?
Discuss with a partner:

6. Continental
Jigsaw Puzzle
Wegener noticed that continents
resemble jigsaw puzzle pieces.
South
America Africa
The coastlines of South America
and Africa match and appear to
fit together.

7. Then
Wegener proposed that all continents
were once part of a single landmass or
supercontinent called the Pangaea.
Now
Pangea broke up millions of years ago,
and continents began to “drift” to reach
their present-day positions.
PERMIAN
250 million years ago
PRESENT DAY
Continental Drift Theory

8. How Pangea broke up and moved away from
each other to their current positions
Continental Drift Theory
PERMIAN
250 million years ago
P
A
N
G
A
E
A
TRIASSIC
200 million years ago
LAURASIA
TETHYS
SEA
GONDWANALAND
JURASSIC
145 million years ago

9. Continental Drift Theory
CRETACEOUS
65 million years ago
PRESENT DAY
How Pangea broke up and moved away from
each other to their current positions

10. Summary
Alfred Wegener
Proposed the theory of
continental drift in 1915.
Continental
Drift Theory
States that continents were once
a single landmass, then slowly
and gradually moved to reach
their present-day positions

11. What are the other pieces of evidence
used by Wegener and other scientists
to support the continental drift
theory?
Choose one piece of evidence and
explain it through a science poster.
Assignment

12. Resource
Page
Use these icons and
illustrations in your Canva
Presentation. Happy designing!
Don‘t forget to delete this page
before presenting.

13. Try this background for online class.
*Please delete this section before downloading.

14. Press these keys
while on Present
mode!
C for confetti
D for a drumroll
O for bubbles
Any number from
0-9 for a timer
B for blur
Q for quiet
U for unveil
M for mic drop