1. CONTINENTAL DRIFT

2. The Theory of Continental Drift  Proposed by Alfred Wegener in 1900

3.  Main points: –The continents are moving –Were once connected in a single supercontinent called Pangaea

4. Evidence for Continental Drift  Wegener used several different pieces of evidence for his theory:

5. Continent Shapes  The continents fit together like pieces of a jigsaw puzzle

6. Matching geological structures  Similar rock structures on opposite sides of the ocean  Ex. Newfoundland and northern Europe

7. Fossil evidence  Similar fossils have been found in many continents

8. Glaciation  Evidence of ice age glaciation in tropical areas