2.1 continental drift

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  • 1. Plate Tectonics Ag Earth Science Mr. Silva

2. Objective: Identify and describethe four pieces of evidence there are supporting the theory of continental drift. 3. Biosphere ReviewWhat are the Three Parts of the Biosphere? 4. Biosphere ReviewWhat sphere are we dealing with when discussing Plate Tectonics? The Geosphere 5. Layers of the Earth Take five minutes to draw and label theEarths layers in your notes. These are terms we will use all year long,therefore you need to become familiarwith them. 6. Continental Drift In 1912 a German scientist named AlfredWegener proposed a hypothesis calledContinental Drift. He hypothesized that the continents onceformed a single landmass. He called it Pangaea, meaning all land 7. Continental Drift 8. 88 9. Evidence of Continental Drift 10. Evidence of ContinentalDriftA. Continental Puzzle: The shorelines of continents look as thoughthey could fit together like a puzzle. 11. Evidence of ContinentalDriftB. Fossil Evidence: Matching fossils of the same plants andanimals were found on shorelines. (Theycouldnt swim across the ocean.) 12. Evidence of ContinentalDriftC. Geologic Evidence: The age and type of rocks in coastalregions that are far apart from each othermatched closely. Mountain chains appear to continue onlandmasses across the ocean. 13. Evidence of ContinentalDriftD. Climatic (climate) evidence: Debris from glaciers found in areas that arenow hot. (Too hot to have glaciers). Plant fossils found in areas where it is toocold for plants to grow. Continents must have _____________ totheir present locations 14. Activity Create a propaganda poster in Pages withone of the newsletter templates justifyingthe Continental Drift Theory. Include the four pieces of evidence forcontinental drift. Use photos to illustrate each piece ofevidence in the poster. This needs to be attractive and make me abeliever of the Continental Drift Theory. Due 10 minutes before the end of theperiod.