Tectonic Plates and Their Motions How did the idea of continental drift lead to plate tectonics? How do we know that plates move apart at divergent plate.
Lesson 2 Reading Guide - KC What is seafloor spreading? What evidence is used to support seafloor spreading? Development of a Theory.
2/26/2004 SIO 226: Introduction to Marine Geophysics Plate Tectonics LeRoy Dorman Scripps Institution of Oceanography Winter, 2011.
1 Natural Disasters Plate Tectonics & Physical Hazards Current Event--Mammoth Chile Earthquake Chile Tsunami.
Unit 10 is presented by: Melanie Meyers, Kayla Alday & Emily Watkins.
Bellringer: Looking at the world map, what do you notice about the shape of the continents? -Write a 1 paragraph response about what you notice.
Warm-Up Find the mistakes! 1. During the 1940s and 1950s, scientists began using radar on moving ships to map large areas of the ocean floor in detail.
Plate Tectonics. Alfred Wegners Theory Came up with the the Theory Continental Drift and said that there are several pieces of evidence that support it.
The Theory of Seafloor Spreading. Seafloor Bathymetry Creating Maps of the Ocean Floor Scientists were able to map the ocean floor using sonar, an Echo-
Plate Boundaries. Review: Wegener's proposal Wegener - continental drift hypothesis 4 lines of evidence Continental puzzle Fossil records Matching mountain.
The Theory of Seafloor Spreading
What is the theory of plate tectonics? What are the three types of plate boundaries?