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Chapter 7: Plate Tectonics

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Presentation on theme: "Chapter 7: Plate Tectonics"— Presentation transcript:

1 Chapter 7: Plate Tectonics
Section 1: Continental Drift

2 A. The continental drift hypothesis – continents have moved slowly to their current locations

3 1. All continents were once connected as one large landmass now called Pangaea

4 2. The landmass broke apart, and the continents drifted to their present positions

5 3. Evidence for continental
drift Puzzle-like fit of the continents Similar fossils have been found on different continents

6 c. Remains of warm weather plants in Arctic areas and glacial deposits in tropical areas suggest that continents have moved

7 d. Similar rock structures are found on different continents

8 B. At first, continental drift was not accepted because no one could explain how or why continents had moved


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