PPT-Plate Tectonics By: Lauren Brown

Continental Drift Wegeners Theory From 1912 Wegener introduced the theory of continental drift arguing that all continents were once joined together in a single landmass and have drifted apart. lawson Liz LaRosa for use with my 5. th. Grade Science Class . http://www.middleschoolscience.com. 2009 . Earth’s Layers. The Earth's rocky outer crust solidified billions of years ago, soon after the Earth formed. . The word tectonics derives from the Greek tektonikos, meaning "pertaining to construction." Structure of the Earth. The Earth is made up of 3 main layers:. Core. Mantle. Crust. Inner core. Outer core. Mantle. Crust. The Crust. This is where we live!. The Earth’s crust is made of:. Continental Crust. Robert T. Pappalardo. Jet Propulsion Laboratory,. California Institute of Technology. Copyright 2012 California Institute of Technology. Government sponsorship acknowledged.. Ganymede’s Tectonics: Outline. as a random outcome of . time-dependent convection. Teresa Wong. Slava. . Solomatov. Theory of Earth II. AGU . Fall Meeting . 19 December . 2014. 1. Major questions on initiation of plate tectonics. Composition of the Earth: . Layers of the Earth: . Crust: . 5-100km thick. . Oceanic crust: thin and more dense, mostly basalt . Continental crust: thicker and less dense, made up of more granite than oceanic crust . Volcanism is mostly focused at plate margins. Pacific Ring of Fire. This map shows the margins of the Pacific tectonic plate and surrounding region. The red dots show the location of active volcanism. Notice how the majority of the volcanism is focused in lines along the plate boundaries? For this region is the area known as the “Pacific Ring of Fire”.. Evidence for Plate Tectonics. Changes in Sea Floor Magnetism. Evidence for Plate Tectonics. Continents fit together like a puzzle. Changes in Sea Floor Magnetism. Evidence for Plate Tectonics. Fossils of plants and animals of the same species found on different continents. . Plate Tectonics. Became a theory in the 1960’s. Describes plate movements AND explains why they move. Plate Tectonics. Two types of crust: Oceanic and Continental. Plates are usually made of both. Chapter 5. 5.1 Vocabulary Terms. Continental drift. Pangaea. Fossil . Wegener’s Hypothesis (. pg. 164). In 1915, Wegener hypothesized that all the continents were once joined together in Pangaea about 300 million years ago and have since drifted apart.. www.iris.edu/ieb. Exercise: http://. www.iris.edu/hq/resource/african_mystery. How do earthquakes provide evidence of plate tectonics?. With a partner, choose a type of plate boundary:. Divergent. Convergent. Structure of the Earth. What are the different layers of the Earth?. Structure of the Earth. Inner core. 6000. °C. Solid metal. Structure of the Earth. Outer core. 4500-6000. °C. Liquid metal. Structure of the Earth. Enter . Silently. Grab Materials. Begin Do Now. Write in your planner for the week. Open your notebook to the front of page 17. . I Do (5 min) . Topic: . Earth. Front Page 17 Title: “How to Make a Concept Map”.