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17.2. The surface of Earth moves constantly. The lithosphere is divided into massive tectonic plates that are pushed and pulled over the asthenosphere.

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Presentation on theme: "17.2. The surface of Earth moves constantly. The lithosphere is divided into massive tectonic plates that are pushed and pulled over the asthenosphere."— Presentation transcript:

1 17.2

2 The surface of Earth moves constantly. The lithosphere is divided into massive tectonic plates that are pushed and pulled over the asthenosphere. 17.2 CHAPTER VOCABULARY tectonic plate continental drift theory paleoglaciation

3 17.2 CHAPTER VOCABULARY tectonic plate continental drift theory paleoglaciation

4 Evidence shows that Identical fossils have been found on distant coast lines VOCABULARY tectonic plate continental drift theory paleoglaciation 17.2 CHAPTER

5 Certain geological features, such as mountains, line up across continents. There is also evidence of paleoglaciation in the south of Africa and in parts of India. VOCABULARY tectonic plate continental drift theory paleoglaciation 17.2 CHAPTER

6 Challenges to the Continental Drift Theory Many scientists of his time challenged his theory Some challenges include: How old the Earth is At that time he could not support the idea of tectonic plates VOCABULARY tectonic plate continental drift theory paleoglaciation 17.2 CHAPTER

7 Questions Pg. 500 # 1, 4, 5, 8 VOCABULARY tectonic plate continental drift theory paleoglaciation 17.2 CHAPTER

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