Tectonic Plate Motion Tectonic plates http://www.johomaps.com/world/worldtecton.html Alfred Wegener 1912,Introduced continental drift Idea rejected Predicted badly Competed with contraction theory http://www.environmentandsociety.org/exhibitions/wegener-diaries/biography-alfred-wegener Contraction theory Thought to have created mountains in cooling Falsely proved http://orig08.deviantart.net/c33d/f/2009/139/5/c/magma_planet_with_a_star_field_by_southtownjr.jpg Pangaea Continents position explanation Sides fit Talked away Fossils found https://www.youtube.com/watch?v=1WBQ311tsFs https://sites.google.com/a/ecsd.us/nowakowski_stemscienceportfolio/earthquakes-and-volcanoes References 1. http://www.ucmp.berkeley.edu/history/wegener.html 2. http://www.ucmp.berkeley.edu/geology/techist.html Quiz 1. Who is Alfred Wegener? 2. How did he originally think the continents move? 3. What theory was he trying to disprove? (its name and the actual theory) 4-5. Why was this theory wrong?