1. S3: Drifting Continents
KEY TERMS
Continental Drift : ALFRED WEGENERs hypothesis that the continents slowly move over Earths surface.
Fossil: the remains of a plant or animal that have been preserved in rock.
Pangaea: The supercontinent that existed 300 million years ago.

2. S3: Drifting Continents
KEY TERMS
Continental Drift : ALFRED WEGENERs hypothesis that the continents slowly moved over Earths surface.
Fossil: the remains of a plant or animal that have been preserved in rock.
Pangaea: The supercontinent that existed 300 million years ago

3. S3: Drifting Continents
KEY TERMS
Continental Drift : ALFRED WEGENERs hypothesis that the continents slowly moved over Earths surface.
Fossil: the remains of a plant or animal that have been preserved in rock.
Pangaea: The supercontinent that existed 300 million years ago

4. S3: Drifting Continents
Big book – pg. 136
Small book – pg. 18

5. Evidence for Continental Drift
I. Wegener used 3 types of evidence support his theory:
Land Features Leave space between each
B. Fossils
C. Climate

6. A. Land Features The continents look like they could fit together
The mountains also line up evenly

7. B. Fossils
1. Similar fossils were found on different continents

8. C. Climate
1. Evidence of glaciers found in warm places
2. Evidence of tropical plants found in cold places (fossils, coal)

9. Climate
1. Evidence of glaciers found in warm places
2. Evidence of tropical plants found in cold places (fossils, coal)

10. Wegeners Hypothesis REJECTED
Scientists at the time (1910s) rejected Wegeners hypothesis because he couldn’t explain what was pulling or pushing the continents apart. 
Today, scientists think he was right. 

11. Due Tuesday
Section 3 Assessment
Big book pg. 140
Small book pg. 22

12. Warm Up!
Which 3 types of evidence did Alfred Wegener use to support his hypothesis?

13. Warm Up!
Which 3 types of evidence did Alfred Wegener use to support his hypothesis?
Evidence of Land Features
Evidence of Fossils
Evidence of Climate Change