Name: _____________________________________Date: ________________ Earth Science Mr. Herman Exeter SHS Chapter 9.1 Continental Drift Vocabulary Continental Drift Pangaea Objective Describe the hypothesis of continental drift Evaluate the evidence in support of continental drift Identify the main objections to Wegener’s hypothesis of continental drift. After reading the section 9.1 answer the following question. 1. What are some of the evidence Wegener used in formulating his continental drift theory? 2. Do you think Pangaea was a “one time” event or do you think this may have happened before in the past? Explain 3. If earthquakes generally happen at plate boundaries, why do we have earthquakes in this area? Explain An Idea Before Its Time Wegener’s continental drift hypothesis stated that the continents had once been joined to form a single supercontinent. Wegener proposed that the supercontinent, Pangaea, began to break apart 200 million years ago and form the present landmasses. An Idea Before Its Time Evidence The Continental Puzzle Matching Fossils Fossil evidence for continental drift includes several fossil organisms found on different landmasses. Evidence Rock Types and Structures Rock evidence for continental exists in the form of several mountain belts that end at one coastline, only to reappear on a landmass across the ocean. Ancient Climates Rejecting the Hypothesis Wegener could not provide an explanation of exactly what made the continents move. News technology lead to findings which then lead to a new theory called plate tectonics.