Restless Continents. Wegener’s Theory of Continental Drift  Alfred Wegener looked at the continents as a puzzle.  He came up with the theory of “Continental.

Slides:



Advertisements
Similar presentations
Theory that all of the continents were once one large landmass (Pangaea) that has broken up and drifted apart. –Alfred Wegener Evidence –Continents fit.
Advertisements

Ch Restless Continents
To explain what is meant by continental Drift To state why people did not believe Alfred Wegner when he put forward this theory To state the evidence.
Restless Continents.
Restless Continents continental drift: the hypothesis by Alfred Wegener that states that the continents once formed a single landmass, broke up, and drifted.
The Dynamic Interior of the Earth
Tectonic Plates.
Plate Tectonics The Dynamic Interior of the Earth.
Chapter 7.2 Restless Continents pgs
Unit 4 Lesson 2 Plate Tectonics
Plate Tectonics A Whole Lot of Shakin’ Goin’ On. What are tectonic plates? Tectonic plates are pieces of the crust that move around on top of the mantle.
Continental Drift: The Beginning of Plate Tectonics
If you look at a map of the world, you may notice that some of the continents could fit together like pieces of a puzzle…..the shapes of the coastlines.
Unit 4 Lesson 2 Plate Tectonics Copyright © Houghton Mifflin Harcourt Publishing Company.
Plate Tectonics Liz LaRosa for use with my 5 th Grade Science Class 2009
Plate Tectonics - PANGAEA
Restless Continents. Continental Drift Hypothesis proposed by Alfred Wegener in early 1900’s Said that continents had once been part of a single large.
Plate Tectonics, Continental Drift, Faults and Folds Chapter 7 Sections 1-4.
Objective You will use the theory of plate tectonics and the changes in the earth’s surface in order to explain the evidence for continental drift theory.
Restless Continents 9/30/15
Plate Tectonics and Continental Drift.
Plate Tectonics California Example. Plate Tectonics Greek – “tektonikos” of a builder Pieces of the lithosphere that move around Each plate has a name.
“Restless Continents”. A. One scientist who looked at the pieces of this puzzle was Alfred Wegener. 1. In the early 1900s, he wrote about his hypothesis.
Plate Tectonics and Continental Drift. Continental drift Many of the continents appear like puzzle pieces that fit together Many of the continents appear.
Plate Tectonics. Earth’s Layers The Earth's rocky outer crust solidified billions of years ago, soon after the Earth formed. This crust is not a solid.
Alfred Wegener in the early 1900’s proposed the hypothesis that continents were once joined together in a single large land mass he called Pangea (meaning.
The Theory of Continental Drift Observations Leading To and Evidences Supporting Theory.
Sci. 4-2 Restless Continents Pages A.Continental Drift- a theory that continents can drift apart from one another and did so in the past 1)Alfred.
 Alfred Wegener wrote about his hypothesis of continental drift in the 1900s.  Continental drift is the hypothesis that states that the continents.
Plate Tectonics Liz LaRosa for use with my 5 th Grade Science Class 2009
The Theory of Plate Tectonics and Continental Drift Write down the underlined items for your notes. Feel free to put the material in your own words.
Chapter 7 Section 2. What You Will Learn  Describe Wegener’s hypothesis of continental drift.  Explain how sea-floor spreading provides a way for continents.
Plate Tectonics A Whole Lot of Shakin’ Goin’ On. Layers of the Earth - Review Crust Mantle Outer core Inner core
Evidence for Plate Tectonics
Plate Tectonics.
Unit 4 Lesson 2 Plate Tectonics
Chapter 7.2 Restless Continents pgs
Plate Tectonics Liz LaRosa for use with my 5th Grade Science Class
Plate Tectonics Liz LaRosa for use with my 5th Grade Science Class
Plate Tectonics Liz LaRosa for use with my 5th Grade Science Class
Plate Tectonics Liz LaRosa for use with my 5th Grade Science Class
Restless Continents Chapter 4: Lesson 2 Page95-98.
Plate Tectonics Liz LaRosa for use with my 5th Grade Science Class
Plate Tectonics.
Plate Tectonics.
Can you explain this map?
Plate Tectonics Liz LaRosa for use with my 5th Grade Science Class
Tectonic Plates.
Plate Tectonics Liz LaRosa for use with my 5th Grade Science Class
Continental Drift and Seafloor Spreading
Plate Tectonics Liz LaRosa for use with my 5th Grade Science Class
Plate Tectonics.
Source: Plate Tectonic Theory Evidence for Plate Tectonics Source:
What is plate tectonics and continental drift?
Plate Tectonics Liz LaRosa for use with my 5th Grade Science Class
Plate Tectonics.
Plate Tectonics Liz LaRosa for use with my 5th Grade Science Class
Evidence for Plate Tectonics
Evidence for Plate Tectonics
Chapter 7 Section 2.
Plate Tectonics.
Plate Tectonics.
Evidence for Plate Tectonics
31L Plates on the go 1/9/14 31R Continental Drift notes 1/9/14
Plate Tectonics Liz LaRosa for use with my Science Class
Evidence for Plate Tectonics
Agenda Roll PowerPoint “Restless Continents”
Evidence for Plate Tectonics
Plate Tectonics Liz LaRosa for use with my 5th Grade Science Class
Plate Tectonics.
Presentation transcript:

Restless Continents

Wegener’s Theory of Continental Drift  Alfred Wegener looked at the continents as a puzzle.  He came up with the theory of “Continental Drift.”  Continental Drift is the theory that continents can drift apart from one another and have done so in the past.  Continental Drift also explained how fossils of the same plant and animal species are found on both sides of the Atlantic Ocean.

Continental Drift

Pangea  Pangea: is the idea that there was one single land mass called Pangea.  Pangea existed approximately 245 million years ago.  180 million years ago, two big pieces broke apart into Laurasia and Gondwana

The Breakup of Pangea

Sea-Floor Spreading  Sea-Floor Spreading occurs when new oceanic lithosphere is created as older materials are pulled away.  When Sea-Floor Spreading occurs, tectonic plates move away from each other causing the continents to move on the Earth’s surface.  Sea-Floor Spreading was the evidence that supported Wegner’s Theory of Continental Drift.

Sea-Floor Spreading