UNIT 11 PLATE TECTONICS

Size: px
Start display at page:

Download "UNIT 11 PLATE TECTONICS"

Transcription

1 UNIT 11 PLATE TECTONICS

2 A. ALFRED WEGENER 1. Continental drift hypothesis Single supercontinent called Pangaea 200 million years ago Pangaea (all land) began to break up and started drifting to their present positions

3

4 A. ALFRED WEGENER Evidences Matching fossils Mesosaurus fossils limited to South America and to southern Africa Rock types and structures several mountain belts that end at one coastline, reappear on a landmass across the ocean

5

6 A. ALFRED WEGENER Hypothesis rejected Wegener could not describe a mechanism that was capable of moving the continents across the globe

7 B. THEORY OF PLATE TECTONICS The theory that proposes that Earth s outer shell consists of individuals plates that interact in various ways and thereby produce earthquakes, volcanoes, mountains, and the crust itself Lithosphere rigid outer layer of Earth, including the crust and upper mantle Divided into segments called plates seven major plates Largest plate = Pacific Plate Move about 5 cm/yr (about as fast as your fingernail)

8

9 TYPES OF PLATE BOUNDARIES

10 DIVERGENT BOUNDARIES Divergent boundaries when two plates move apart Results in upwelling of material from the mantle to create new seafloor Oceanic ridge seafloor that is elevated along well developed divergent boundaries Rift valleys deep faulted structures found along the axes of some segments Seafloor spreading The process in which the ocean floor is extended when two plates move apart, forming a crack where magma can rise to the surface, cooling and forming new crust Ex. East African Rift Valley

11

12 CONVERGENT BOUNDARIES Convergent boundaries when two plates move together Results in a subduction zone when one oceanic plate is forced down into the mantle beneath a second plate Creates an ocean trench

13

14 CONVERGENT BOUDARIES 3 types of convergent boundaries Oceanic-Continental Ocean plate (more dense) sinks down under continental plate Can eventually cause volcanic eruptions Ex. Andes

15 Oceanic-Oceanic One descends beneath the other Can cause volcanoes to form on ocean floor Activity will eventually build a chain of volcanic structures that become islands called volcanic island arc Ex. Aleutian Islands off the shore of Alaska

16 CONVERGENT BOUNDARIES Continental-Continental Plates collide Causes formation of complex mountains Ex. Himalayas Urbanizing mountainsides leads to erosion, landslides, and water pollution

17 TRANSFORM FAULT BOUNDARIES Transform fault boundaries two plates grind past each other without the production or destruction of lithosphere Can cause earthquake activity Ex. San Andreas fault zone

18

19 EVIDENCE FOR PLATE TECTONICS 1. Paleomagnetism - the study of the Earth s magnetic field in the past used as evidence for seafloor spreading Normal Polarity when rocks show the same magnetism as the present magnetic field Reverse polarity rocks that show the opposite magnetism the discovery of strips of alternating polarity, while lie as mirror images across the ocean ridges, is among the strongest evidence of seafloor spreading

20

21 Earthquake patterns Ocean drilling Hot spots - a concentration of heat in the mantle capable of producing magma, which rises to Earth s surface pacific plate moves over a hot spot, producing the Hawaiian Islands supports the idea that the plates move over Earth s surface

22

23 G. MECHANISMS OF PLATE MOTION Convection warm, less dense material rises and cooler, denser material sinks Convection currents transfer of thermal energy from warmer regions of magma below the crust to cooler regions Convection occurring in the mantle is the basic driving force for plate movement

24 G. MECHANISMS OF PLATE MOTION Slab-pull Occurs because cold oceanic crust, sinks into the asthenosphere and pulls the trailing lithosphere along Thought to be the primary downward arm of convective flow in the mantle Ridge-push Results from the elevated position of the oceanic ridge system Causes oceanic lithosphere to slide down the sides of the oceanic ridge Less important than slab-pull

25

26 G. MECHANISMS OF PLATE MOTION Mantle convection mantle plumes are masses of hotter-than-normal mantle material that ascend toward the surface The unequal distribution of heat within Earth causes the thermal convection in the mantle that ultimately drives plate motion

Unit 11: Plate Tectonics

Unit 11: Plate Tectonics Unit 11: Plate Tectonics A. Alfred Wegner 1. Continental drift hypothesis a. single supercontinent called Pangaea b. 200 million years ago Pangaea (all land) began to break up and started drifting to their

More information

Prentice Hall EARTH SCIENCE

Prentice Hall EARTH SCIENCE Prentice Hall EARTH SCIENCE Tarbuck Lutgens Chapter 9 Plate Tectonics 9.1 Continental Drift An Idea Before Its Time Wegener s continental drift hypothesis stated that the continents had once been joined

More information

Prentice Hall EARTH SCIENCE

Prentice Hall EARTH SCIENCE Prentice Hall EARTH SCIENCE Tarbuck Lutgens Chapter 9 Plate Tectonics 9.1 Continental Drift An Idea Before Its Time Wegener s continental drift hypothesis stated that the continents had once been joined

More information

Continental Drift and Plate Tectonics

Continental Drift and Plate Tectonics Continental Drift and Plate Tectonics Continental Drift Wegener s continental drift hypothesis stated that the continents had once been joined to form a single supercontinent. Wegener proposed that the

More information

Unit 5: Plate Tectonics

Unit 5: Plate Tectonics Unit 5: Plate Tectonics A. Alfred Wegner 1. Continental drift hypothesis a. single supercontinent called Pangaea b. 200 million years ago Pangaea (all land) began to break up and started drifting to their

More information

Plate Tectonics: A Scientific Revolution Unfolds

Plate Tectonics: A Scientific Revolution Unfolds Chapter 2 Lecture Earth: An Introduction to Physical Geology Eleventh Edition Plate Tectonics: A Scientific Revolution Unfolds Tarbuck and Lutgens From Continental Drift to Plate Tectonics Prior to the

More information

Plate Tectonics: The New Paradigm

Plate Tectonics: The New Paradigm Earth s major plates Plate Tectonics: The New Paradigm Associated with Earth's strong, rigid outer layer: Known as the lithosphere Consists of uppermost mantle and overlying crust Overlies a weaker region

More information

Continental Drift. & Plate Tectonics

Continental Drift. & Plate Tectonics Continental Drift & Plate Tectonics Alfred Wegener, a German scientist, proposed the hypothesis of CONTINENTAL DRIFT, in 1912. Hypothesis stated: All Earth s continents were once a single landmass (Pangaea)

More information

12/3/2014. Plate Tectonics: A Scientific Revolution Unfolds Earth Science, 13e Chapter 7. Continental drift: an idea before its time

12/3/2014. Plate Tectonics: A Scientific Revolution Unfolds Earth Science, 13e Chapter 7. Continental drift: an idea before its time Plate Tectonics: A Scientific Revolution Unfolds Earth Science, 13e Chapter 7 Stanley C. Hatfield Southwestern Illinois College Continental drift: an idea before its time Alfred Wegener First proposed

More information

Plate Tectonics. Continental Drift Sea Floor Spreading Plate Boundaries

Plate Tectonics. Continental Drift Sea Floor Spreading Plate Boundaries Plate Tectonics Continental Drift Sea Floor Spreading Plate Boundaries Continental Drift 1915, Alfred Wegener - Pangea hypothesis: suggested Earth s continents were part of a large super-continent 200

More information

Ch 9.1 Notes. Objective: Be able to explain the theory of plate tectonics and be able to explain evidence that supports it.

Ch 9.1 Notes. Objective: Be able to explain the theory of plate tectonics and be able to explain evidence that supports it. Ch 9.1 Notes Objective: Be able to explain the theory of plate tectonics and be able to explain evidence that supports it. Pangaea Alfred Wegener proposed that land on Earth formed a single, huge landmass.

More information

Plate Tectonics. Essentials of Geology, 11 th edition Chapter 15

Plate Tectonics. Essentials of Geology, 11 th edition Chapter 15 1 Plate Tectonics Essentials of Geology, 11 th edition Chapter 15 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Plate Tectonics: summary in haiku form Alfred Wegener gave us Continental Drift. Fifty years later...

More information

OBJECTIVE: For each boundary type, give an example of where they occur on Earth.

OBJECTIVE: For each boundary type, give an example of where they occur on Earth. OBJECTIVE: Explain the theory of Plate Tectonics. COMPARE AND CONTRAST DIVERGENT, CONVERGENT AND TRANSFORM BOUNDARIES. ***very important. Describe what geologic features form at each of the three CONVERGENT

More information

Refer to the map on page 173 to answer the following questions.

Refer to the map on page 173 to answer the following questions. Chapter 8-1 Plate Tectonics 1. Brainstorm the type of evidence that would indicate a climate change and how this evidence supports the theory of continental drift. Tropical fossils in cold regions Evidence

More information

5/24/2018. Plate Tectonics. A Scientific Revolution Unfolds

5/24/2018. Plate Tectonics. A Scientific Revolution Unfolds 1 Plate Tectonics A Scientific Revolution Unfolds 2 3 4 5 6 7 8 9 10 11 12 Chapter 2 Plate Tectonics From Continental Drift to Plate Tectonics Prior to the late 1960s, most geologists believed that the

More information

Unit 4 Lesson 2 Plate Tectonics. Copyright Houghton Mifflin Harcourt Publishing Company

Unit 4 Lesson 2 Plate Tectonics. Copyright Houghton Mifflin Harcourt Publishing Company Puzzling Evidence What evidence suggests that continents move? In the late 1800s, Alfred Wegener proposed his hypothesis of continental drift. According to this hypothesis, the continents once formed a

More information

1. I can describe evidence for continental drift theory (e.g., fossil evidence, mountain belts, paleoglaciation)

1. I can describe evidence for continental drift theory (e.g., fossil evidence, mountain belts, paleoglaciation) Science 10 Review Earth Science Vocabulary asthenosphere continental drift theory converging plates diverging plates earthquakes epicentre fault hot spot inner core lithosphere mantle mantle convection

More information

Distribution of Continents Mid-ocean Ridges Trenches. Deformation Metamorphism Volcanism Earthquakes

Distribution of Continents Mid-ocean Ridges Trenches. Deformation Metamorphism Volcanism Earthquakes Earthquakes and Plate Tectonics Global Problems in Geology Distribution of Continents Mid-ocean Ridges Trenches Orogenic Belts Deformation Metamorphism Volcanism Earthquakes Development of Continental

More information

In 1912 Alfred Wegener proposed Continental Drift the continents have moved over time the continents were part of one giant landmass named Pangaea.

In 1912 Alfred Wegener proposed Continental Drift the continents have moved over time the continents were part of one giant landmass named Pangaea. Plate Tectonics In 1912 Alfred Wegener proposed Continental Drift the continents have moved over time the continents were part of one giant landmass named Pangaea. Pangaea Landmass movements over millions

More information

Directed Reading. Section: The Theory of Plate Tectonics. to the development of plate tectonics, developed? HOW CONTINENTS MOVE

Directed Reading. Section: The Theory of Plate Tectonics. to the development of plate tectonics, developed? HOW CONTINENTS MOVE Skills Worksheet Directed Reading Section: The Theory of Plate Tectonics 1. The theory that explains why and how continents move is called. 2. By what time period was evidence supporting continental drift,

More information

The Theory of Continental Drift. Continental Drift Discovery

The Theory of Continental Drift. Continental Drift Discovery The Theory of Continental Drift Continental Drift Discovery The World ALFRED WEGENER THEORY OF CONTINENTAL DRIFT Found evidence for PANGAEA and proposed the theory of continental drift. Continental Drift

More information

22.4 Plate Tectonics. Africa

22.4 Plate Tectonics. Africa The Red Sea between Africa and the Arabian peninsula in Asia marks a region where two pieces of the lithosphere are slowly moving apart. Over the next 100 million years, the Red Sea could become an ocean.

More information

Outcome C&D Study Guide

Outcome C&D Study Guide Name: Class: Outcome C&D Study Guide Identify the layers of Earth s interior Lithosphere the upper most layer of the earth that includes the crust and the hard outer mantle. It is fractured into tectonic

More information

Plate Tectonics. I. The Discovery of Plate Tectonics II. A Mosaic of Plates III. Types of Plate Boundaries IV. How Plates Move

Plate Tectonics. I. The Discovery of Plate Tectonics II. A Mosaic of Plates III. Types of Plate Boundaries IV. How Plates Move Plate Tectonics I. The Discovery of Plate Tectonics II. A Mosaic of Plates III. Types of Plate Boundaries IV. How Plates Move I. The Discovery of Plate Tectonics A. Continental Drift (Alfred Wegener) Proposed

More information

5. Convergent boundaries produce a relatively low number of earthquakes compared to other boundaries. a. True

5. Convergent boundaries produce a relatively low number of earthquakes compared to other boundaries. a. True 1. Earth s crust is thinner than its mantle. ANSWER: True 2. The concept of isostacy states that high-density rock will stand higher than low-density rock, which explains the formation of subduction zones.

More information

Continental Drift. Wegener theory that the crustal plates are moving and once were a super continent called Pangaea.

Continental Drift. Wegener theory that the crustal plates are moving and once were a super continent called Pangaea. PLATE TECTONICS WHAT IS TECTONICS? Tectonism is the faulting or folding or other deformation of the outer layer of a planet. It happens very slowly, on the scale of millions of years. Tectonic activity

More information

Science 10 PROVINCIAL EXAM STUDY BOOKLET. Unit 4. Earth Science

Science 10 PROVINCIAL EXAM STUDY BOOKLET. Unit 4. Earth Science Science 10 PROVNCAL EXAM STUDY BOOKLET Unit 4 Earth Science Student nstructions 1. Ensure that you have blank paper and a Data Booklet. 2. Record all answers on a separate piece of paper. 3. Answer keys

More information

PLATE TECTONICS 11/13/ Investigations of glaciers also indicated that the land masses on Earth were once a supercontinent.

PLATE TECTONICS 11/13/ Investigations of glaciers also indicated that the land masses on Earth were once a supercontinent. PLATE TECTONICS Alfred Wegener thought that the landmasses fit together like a jigsaw puzzle. He called the land mass Pangaea. Meaning all land Continental Drift Wegener theory first coining the word -

More information

Lecture 4.1 Continental Drift

Lecture 4.1 Continental Drift Plate Tectonics Chapter 4 California Science Content Standards Covered: Big Ideas 3A: Students know the features of the ocean floor that provide evidence of plate tectonics Mid Ocean Ridges (ex. Mid Atlantic

More information

Foundations of Earth Science Seventh Edition

Foundations of Earth Science Seventh Edition Chapter 5 Lecture Outline Foundations of Earth Science Seventh Edition Plate Tectonics: A Scientific Revolution Unfolds Natalie Bursztyn Utah State University From Continental Drift to Plate Tectonics

More information

Notepack # 9 AIM: Why are the continents drifting apart? Do Now: Watch the video clip and write down what you observe.

Notepack # 9 AIM: Why are the continents drifting apart? Do Now: Watch the video clip and write down what you observe. Notepack # 9 AIM: Why are the continents drifting apart? Do Now: Watch the video clip and write down what you observe. http://www.youtube.com/watch?v=ci 5P5yy0xlg&feature=related What do we know as a class,

More information

Sir Francis Bacon, 1620, noted that the continental coasts on opposites sides of the Atlantic fit together like puzzle pieces.

Sir Francis Bacon, 1620, noted that the continental coasts on opposites sides of the Atlantic fit together like puzzle pieces. Plate Tectonics Sir Francis Bacon, 1620, noted that the continental coasts on opposites sides of the Atlantic fit together like puzzle pieces. Could North and South America once have been joined to Europe

More information

Plate Tectonics. Earth has distinctive layers - Like an onion

Plate Tectonics. Earth has distinctive layers - Like an onion Plate Tectonics Earth has distinctive layers - Like an onion Earth s Interior Core: Metallic (Iron, Nickel) Inner (hot, solid, dense, Iron, Nickel) Outer (cooler, liquid, less dense) Crust (outermost layer):

More information

The Structure of the Earth and Plate Tectonics

The Structure of the Earth and Plate Tectonics The Structure of the Earth and Plate Tectonics Structure of the Earth The Earth is made up of 4 main layers: Inner Core Outer Core Mantle Crust Crust Mantle Outer core Inner core The Crust This is where

More information

Plate Tectonic Vocabulary Chapter 10 Pages

Plate Tectonic Vocabulary Chapter 10 Pages Name: Period: Plate Tectonic Vocabulary Chapter 10 Pages 239-260 Vocabulary Word What is this? What are some examples? What does it look like? (draw a picture or diagram) Continental drift Mid-ocean ridge

More information

Section 1: Continental Drift

Section 1: Continental Drift Plate Tectonics Section 1 Section 1: Continental Drift Preview Key Ideas Wegener s Hypothesis Sea-Floor Spreading Paleomagnetism Wegener Redeemed Continental Drift (Pangaea) Plate Tectonics Section 1 Key

More information

Unit 4 Lesson 6 Plate Tectonics

Unit 4 Lesson 6 Plate Tectonics Unit 4 Lesson 6 Plate Tectonics Indiana Standards 7.2.1 Describe how the earth is a layered structure composed of lithospheric plates, a mantle and a dense core. 7.2.4 Explain how convection currents in

More information

The Four Layers The Earth is composed of four different layers. The crust is the layer that you live on, and it is the most widely studied and

The Four Layers The Earth is composed of four different layers. The crust is the layer that you live on, and it is the most widely studied and Earth s Structure The Four Layers The Earth is composed of four different layers. The crust is the layer that you live on, and it is the most widely studied and understood. The mantle is much hotter and

More information

PLATE TECTONICS REVIEW GAME!!!!

PLATE TECTONICS REVIEW GAME!!!! PLATE TECTONICS REVIEW GAME!!!! Name the four layers of the earth - crust - mantle - outer core - inner core Which part of Earth s structure contains tectonic plates? LITHOSPHERE Name one reason why the

More information

UNIT 6 PLATE TECTONICS

UNIT 6 PLATE TECTONICS UNIT 6 PLATE TECTONICS CONTINENTAL DRIFT Alfred Wegner proposed the theory that the crustal plates are moving over the mantle. He argued that today s continents once formed a single landmass, called Pangaea

More information

Chapter. Graphics by Tasa Graphic Arts. Inc.

Chapter. Graphics by Tasa Graphic Arts. Inc. Earth Chapter Plate Science 9 Tectonics Graphics by Tasa Graphic Arts. Inc. 1 I. Earth s surface is made up of lithospheric plates. A. Lithospheric plates are composed of the crust and part of the upper

More information

Mr. Petersen EARTH SCIENCE LESSON th Grade

Mr. Petersen EARTH SCIENCE LESSON th Grade Teacher Prep Materials and stuff needed: Cutout Glue Sticks or Rice Glue PowerPoint Plate Tectonics Set up the students for taking notes. Model for the students using the camera projector. Use the Prentice

More information

Chapter 8: Earthquakes and Earth s Interior Section 1: What is an Earthquake? I. Earthquakes Group # Main Idea:

Chapter 8: Earthquakes and Earth s Interior Section 1: What is an Earthquake? I. Earthquakes Group # Main Idea: Chapter 8: Earthquakes and Earth s Interior Section 1: What is an Earthquake? I. Earthquakes Group # A. Focus and Epicenter Group # B. Faults Group # II. Cause of Earthquakes Group # A. Elastic Rebound

More information

Directed Reading. Section: Continental Drift. years ago? WEGENER S HYPOTHESIS

Directed Reading. Section: Continental Drift. years ago? WEGENER S HYPOTHESIS Skills Worksheet Directed Reading Section: Continental Drift 1. Who obtained new information about the continents and their coastlines 400 years ago? 2. What did people notice when they studied new world

More information

Chapter 7 Plate Tectonics. Plate tectonics accounts for important features of Earth s surface and major geologic events.

Chapter 7 Plate Tectonics. Plate tectonics accounts for important features of Earth s surface and major geologic events. Chapter 7 Plate Tectonics Plate tectonics accounts for important features of Earth s surface and major geologic events. 7-2 Alfred Wegener s Hypothesis of Continental Drift (1915) ONE single landmass

More information

SUBSURFACE CHANGES TO EARTH. Ms. Winkle

SUBSURFACE CHANGES TO EARTH. Ms. Winkle SUBSURFACE CHANGES TO EARTH Ms. Winkle OVERVIEW Subsurface events: occurring inside the crust and mantle Moving the lithosphere due to the convection currents in the asthenosphere Main Theories: 1912 Wegener,

More information

Name Date Class. Plate Tectonics

Name Date Class. Plate Tectonics Chapter Review Plate Tectonics Part A. Vocabulary Review Directions: Write the term that matches each description below in the spaces provided. Then unscramble the letters in the boxes to reveal the mystery

More information

The Theory of Plate Tectonics

The Theory of Plate Tectonics Plate Tectonics Objectives Describe how plates move. Explain the features of plate tectonics. Describe the types of plate boundaries and the features that can form and events that can occur at each. The

More information

PHYSICAL GEOLOGY AND THE ENVIRONMENT (2 ND CANADIAN EDITION)

PHYSICAL GEOLOGY AND THE ENVIRONMENT (2 ND CANADIAN EDITION) Chapter 2: Plate Tectonics Chapter Summary: Plate tectonics is a theory that suggests Earth's surface is divided into several large plates that change position and size. Intense geologic activity occurs

More information

sonar seismic wave basalt granite

sonar seismic wave basalt granite geologist sonar crust geology seismic wave mantle constructive force basalt inner core destructive force granite outer core The solid, rocky, surface layer of the earth. an instrument that can find objects

More information

Chapter 7 Plate Tectonics. Plate tectonics accounts for important features of Earth s surface and major geologic events.

Chapter 7 Plate Tectonics. Plate tectonics accounts for important features of Earth s surface and major geologic events. Chapter 7 Plate Tectonics Plate tectonics accounts for important features of Earth s surface and major geologic events. 7-2 Alfred Wegener s Hypothesis of Continental Drift (1915) He noticed that the continents

More information

8 th Grade Campus Assessment- NSMS Plate Tectonics

8 th Grade Campus Assessment- NSMS Plate Tectonics 1. A group of students were discussing plate tectonics in their science class. All of the following statements about the tectonic plates are incorrect EXCEPT: A. The Eurasian Plate consists of the Asian

More information

Plate Tectonics Practice Test

Plate Tectonics Practice Test Plate Tectonics Practice Test 1. What is the main idea Alfred Wegner proposed in the Theory of Continental Drift that he published in 1915? a. The continents float on a liquid layer that allows them to

More information

EARTH S INTERIOR, EVIDENCE FOR PLATE TECTONICS AND PLATE BOUNDARIES

EARTH S INTERIOR, EVIDENCE FOR PLATE TECTONICS AND PLATE BOUNDARIES EARTH S INTERIOR, EVIDENCE FOR PLATE TECTONICS AND PLATE BOUNDARIES LAYERS OF THE EARTH Crust Inner Core Most Dense Solid Iron & Nickel Mantle Thickest layer Outer Core Liquid Iron & Nickel ANOTHER LOOK

More information

Lecture Outline Friday January 12 Friday January 19, 2018

Lecture Outline Friday January 12 Friday January 19, 2018 Lecture Outline Friday January 12 Friday January 19, 2018 Questions?? Key Points for today The structure of the Earth Introduction to Plate Tectonic Theory and Convection Chapter 2 Development of the Plate

More information

Evidence from the Surface. Chapter 02. Continental Drift. Fossil Evidence for Pangaea. Seafloor Spreading. Seafloor Spreading 1/31/2012

Evidence from the Surface. Chapter 02. Continental Drift. Fossil Evidence for Pangaea. Seafloor Spreading. Seafloor Spreading 1/31/2012 Evidence from the Surface Surface landforms Continental shelf and slope Abyssal Plane Mid-oceanic ridge Oceanic Trenches Chapter 02 Continental Drift Continental Drift - a hypothesis that the continents

More information

Ch 17 Plate Tectonics Big Idea: Most geologic activity occurs at the boundaries between plates.

Ch 17 Plate Tectonics Big Idea: Most geologic activity occurs at the boundaries between plates. Ch 17 Plate Tectonics Big Idea: Most geologic activity occurs at the boundaries between plates. 17.1 Drifting Continents 17.2 Seafloor Spreading 17.3 Plate Boundaries 17.4 Causes of Plate Motions Learning

More information

Chapter 4: Plate Tectonics

Chapter 4: Plate Tectonics Chapter 4: Plate Tectonics K2 in the Himalaya, inset round submersible (beneath the submarine) that went to the Marianas Trench in 1960 http://www.nydailynews.com/news/world/james-cameron-presents-record-setting-deep-sea-expedition-article-1.1215139

More information

From Continental Drift to Plate Tectonics

From Continental Drift to Plate Tectonics Plate Tectonics A Scientific Revolution Unfolds Chapter 2 Plate Tectonics 2009-2018 2018 Phil Farquharson, Geology Guy From Continental Drift to Plate Tectonics Prior to the late 1960s, most geologists

More information

PLATE TECTONICS. SECTION 17.1 Drifting Continents

PLATE TECTONICS. SECTION 17.1 Drifting Continents Date Period Name PLATE TECTONICS SECTION.1 Drifting Continents In your textbook, read about continental drift. Circle the letter of the choice that best completes each statement. 1. Early mapmakers thought

More information

8 th Grade Science Plate Tectonics and Topography Review

8 th Grade Science Plate Tectonics and Topography Review 8 th Grade Science Plate Tectonics and Topography Review #1 Scientists believe that the land masses of Earth were once joined together as one supercontinent called. A: Australia B: Wegner C: Pangaea D:

More information

Earth Movement and Resultant Landforms

Earth Movement and Resultant Landforms Earth Movement and Resultant Landforms Structure of the Earth Lithosphere : earth s crust Asthenosphere : upper mantle zone where material is near its melting point & acts almost like liquid (appprox.

More information

Changing Earth: Plate Tectonics

Changing Earth: Plate Tectonics Changing Earth: Plate Tectonics Static Earth Theory People used to believe that the Earth and its continents could not change since it was created They thought that earthquakes and volcanoes were caused

More information

Plate Tectonics. How do the plates move?

Plate Tectonics. How do the plates move? Plate Tectonics How do the plates move? Continental Drift Hypothesis In 1915, Alfred Wegener s hypothesis about Continental Drift couldn t explain the forces that could move continents. Wegener wasn t

More information

4 Layers of the earth 7 main plates of the earth 3 main plate boundaries 2 types of crust 3 main features of plate tectonics 3 main theorists and

4 Layers of the earth 7 main plates of the earth 3 main plate boundaries 2 types of crust 3 main features of plate tectonics 3 main theorists and 4 Layers of the earth 7 main plates of the earth 3 main plate boundaries 2 types of crust 3 main features of plate tectonics 3 main theorists and theories Human interaction The Earth is made up of 3 main

More information

In order to study Plate Tectonics, we must first

In order to study Plate Tectonics, we must first TB Chapter 13 In order to study Plate Tectonics, we must first reorganize our layering system for the Earth: Old System 4 layers Crust (rigid) id) (rigid) Mantle (putty like) (semi rigid) Outer core (liquid)

More information

TO GO TO ANY OF THE PAGES LISTED BELOW, CLICK ON ITS TITLE

TO GO TO ANY OF THE PAGES LISTED BELOW, CLICK ON ITS TITLE TO GO TO ANY OF THE PAGES LISTED BELOW, CLICK ON ITS TITLE CHAPTER 6 Plate Tectonics 1 6-1 What is continental drift? 2 6-2 Why is the seafloor spreading? 3 6-3 What evidence supports seafloor spreading?

More information

6. In the diagram below, letters A and B represent locations near the edge of a continent.

6. In the diagram below, letters A and B represent locations near the edge of a continent. 1. Base your answer to the following question on the cross section below and on your knowledge of Earth science. The cross section represents the distance and age of ocean-floor bedrock found on both sides

More information

Physical Geology, 15/e

Physical Geology, 15/e Lecture Outlines Physical Geology, 15/e Plummer, Carlson & Hammersley Plate Tectonics: The Unifying Theory Physical Geology 15/e, Chapter 19 Plate Tectonics Plate Tectonics Earth s surface is composed

More information

The ACTIVE EARTH!!!!!

The ACTIVE EARTH!!!!! The ACTIVE EARTH!!!!! Continental Drift Theory Alfred Wegener meterologist and geophysicist who, in 1912, proposed this theory. He stated that earth s crust might be moving and changing & that the continents

More information

PLATE TECTONICS. Continental Drift. Continental Drift. Continental Drift. Continental Drift- Wegener s Evidence

PLATE TECTONICS. Continental Drift. Continental Drift. Continental Drift. Continental Drift- Wegener s Evidence Continental Drift PLATE TECTONICS E.B. Taylor (1910) and Alfred Wegener (1915) published on Continental Drift. Continental Drift Wegener s evidence 1. Fit of the Continents 2. Fossil Evidence 3. Rock Type

More information

Exploring Inside the Earth

Exploring Inside the Earth Plate Tectonics Exploring Inside the Earth Geologists have used evidence from rock samples and evidence from seismic waves to learn about Earth s interior. Geologists are scientists who study the forces

More information

Earth s Changing Surface

Earth s Changing Surface Earth s Changing Surface Tectonics What do you think? Read the two statements below and decide whether you agree or disagree with them. Place an A in the Before column if you agree with the statement or

More information

Plate Tectonics. And Plate Boundaries HORRAH!!!

Plate Tectonics. And Plate Boundaries HORRAH!!! Plate Tectonics And Plate Boundaries HORRAH!!! History of Plate Tectonics and Alfred Wegener In the 1500 s, a Dutch mapmaker, Abraham Ortelius noticed the continents across the Atlantic Ocean fit like

More information

Ch. 9 Review. Pgs #1-31 Write Questions and Answers

Ch. 9 Review. Pgs #1-31 Write Questions and Answers Ch. 9 Review Pgs. 356-357 #1-31 Write Questions and Answers 356-357 #1-5 Answers 1. The layer of the upper mantle that can flow is the: A - Asthenosphere 2. Most scientists rejected Wegener s theory of

More information

What is the theory of plate tectonics? Lesson 1 Lesson 2 Lesson 3

What is the theory of plate tectonics? Lesson 1 Lesson 2 Lesson 3 Name Plate Tectonics What is the theory of plate tectonics? Date Before You Read Before you read the chapter, think about what you know about plate tectonics Record your thoughts in the first column Pair

More information

1. What is Wegener s theory of continental drift? 2. What were the 4 evidences supporting his theory? 3. Why wasn t Wegener s theory excepted?

1. What is Wegener s theory of continental drift? 2. What were the 4 evidences supporting his theory? 3. Why wasn t Wegener s theory excepted? Notebook 7a and 7b Objective (left-side): Students will be able to explain the theory of plate tectonics and be able to make predictions about plate interactions. Mapping Reflection 1. What is Wegener

More information

Plate Tectonics. Goal 2.1

Plate Tectonics. Goal 2.1 Plate Tectonics Goal 2.1 Lesson 1 Plate Tectonics: An Overview Think About It Look at the map below. Which two continents look like they d fit together? Focus Question How do Earth s tectonic plates cause

More information

Week: 4 5 Dates: 9/8 9/12 Unit: Plate Tectonics

Week: 4 5 Dates: 9/8 9/12 Unit: Plate Tectonics clementaged.weebly.com Name: ODD Period: Week: 4 5 Dates: 9/8 9/12 Unit: Plate Tectonics Monday Tuesday Wednesday Thursday Friday 7 No School 8 E 9 O *Vocabulary *Frayer Vocab *Continental Drift Notes

More information

Plate Tectonics: A Unifying Theory

Plate Tectonics: A Unifying Theory Plate Tectonics: A Unifying Theory What is Plate Tectonics? - 7 large tectonic plates and many smaller ones that break up the lithosphere - Plates are brittle and float on asthenosphere and glide past

More information

Plate Tectonics CHAPTER 17

Plate Tectonics CHAPTER 17 Plate Tectonics CHAPTER 17 Layers of the Earth A. Crust- solid, 5-70 km thick Moho Two Types of Crust: Oceanic- ocean floor, more dense then because of more iron Continental-dry land (mostly silicates

More information

Plate Tectonics. entirely rock both and rock

Plate Tectonics. entirely rock both and rock Plate Tectonics I. Tectonics A. Tectonic Forces are forces generated from within Earth causing rock to become. B. 1. The study of the origin and arrangement of Earth surface including mountain belts, continents,

More information

The Structure of the Earth and Plate Tectonics

The Structure of the Earth and Plate Tectonics The Structure of the Earth and Plate Tectonics Agree or Disagree? 1. The Earth if made up of 4 different layers. 2. The crust (where we live) can be made of either less dense continental crust or the more

More information

Do Now: Vocabulary: Objectives. Vocabulary: 1/5/2016. Wegener? (Can they move?) the idea that continents have moved over time?

Do Now: Vocabulary: Objectives. Vocabulary: 1/5/2016. Wegener? (Can they move?) the idea that continents have moved over time? Do Now: 1. Who was Alfred Wegener? 2. What was Pangaea? 3. Are continents fixed? (Can they move?) 4. What evidence supports the idea that continents have moved over time? Objectives What evidence suggests

More information

Name Date Class. How have geologists learned about Earth s inner structure? What are the characteristics of Earth s crust, mantle, and core?

Name Date Class. How have geologists learned about Earth s inner structure? What are the characteristics of Earth s crust, mantle, and core? Chapter 4 Plate Tectonics Section 1 Summary Earth s Interior How have geologists learned about Earth s inner structure? What are the characteristics of Earth s crust, mantle, and core? Earth s surface

More information

Features of Tectonic Plates

Features of Tectonic Plates Features of Tectonic Plates PowerPoint 12.2 The Earth s Layers Crust Brittle Continental crust composed mainly of granite Oceanic crust composed mainly of basalt Mantle Denser than the crust Upper is molten

More information

FORCES ON EARTH. An investigation into how Newton s Laws of Motion are applied to the tectonic activity on Earth.

FORCES ON EARTH. An investigation into how Newton s Laws of Motion are applied to the tectonic activity on Earth. FORCES ON EARTH An investigation into how Newton s Laws of Motion are applied to the tectonic activity on Earth. GEOLOGY Geologists scientists who study the forces that make and shape the Earth Geologists

More information

Plate Tectonic Theory

Plate Tectonic Theory Have you ever looked at a world map and noticed the shapes of the continents? Have you ever noticed how some continents appear to fit together like the pieces of a jigsaw puzzle? Why do you think this

More information

Full file at

Full file at Chapter 2 PLATE TECTONICS AND PHYSICAL HAZARDS MULTIPLE-CHOICE QUESTIONS 1. What direction is the Pacific Plate currently moving, based on the chain of Hawaiian Islands with only the easternmost island

More information

Plate Tectonics. 1)The plate tectonic system 2)A theory is born 3) Early evidence for continental drift 4) Continental drift and paleomagnetism

Plate Tectonics. 1)The plate tectonic system 2)A theory is born 3) Early evidence for continental drift 4) Continental drift and paleomagnetism Plate Tectonics Plate boundaries 1)The plate tectonic system 2)A theory is born 3) Early evidence for continental drift 4) Continental drift and paleomagnetism 6)History and future of plate motions system

More information

Chapter: Plate Tectonics

Chapter: Plate Tectonics Table of Contents Chapter: Plate Tectonics Section 1: Continental Drift Section 2: Seafloor Spreading Section 3: Theory of Plate Tectonics Continental Drift 1 Evidence for Continental Drift If you look

More information

Objectives. Vocabulary

Objectives. Vocabulary Drifting Continents Objectives Describe one piece of early evidence that led people to suggest that Earth s continents may have once been joined. Discuss evidence of continental drift. Explain why continental

More information

Plate Tectonics. Theory of Plate Tectonics. What is Plate Tectonics. Plate Tectonics Plate Boundaries Causes of Plate Tectonics

Plate Tectonics. Theory of Plate Tectonics. What is Plate Tectonics. Plate Tectonics Plate Boundaries Causes of Plate Tectonics Theory of Plate Tectonics Plate Tectonics Plate Boundaries Causes of Plate Tectonics Plate Tectonics What is Plate Tectonics The Earth s crust and upper mantle are broken into sections called plates Plates

More information

Yanbu University College. General Studies Department. PHSC001 Course. Chapter9 (Basic Geology: Earthquakes and volcanoes ) Worksheet Solutions

Yanbu University College. General Studies Department. PHSC001 Course. Chapter9 (Basic Geology: Earthquakes and volcanoes ) Worksheet Solutions Yanbu University College General Studies Department PHSC001 Course Chapter9 (Basic Geology: Earthquakes and volcanoes ) Worksheet Solutions Phsc001 worksheet9 solutions, yuc Page 1-6 Chapter 9 worksheet

More information

THE INTERNAL STRUCTURE OF THE EARTH

THE INTERNAL STRUCTURE OF THE EARTH UNIT 1 THE INTERNAL STRUCTURE OF THE EARTH 1.1.Earth s interior layers The interior of the Earth can be divided into layers according to: -Composition layers ( organized in order of increasing density

More information

Unit 10 ~ Learning Guide

Unit 10 ~ Learning Guide Unit 10 ~ Learning Guide Name: INSTRUCTIONS Using a pencil, complete the following practice questions as you work through the related lessons. You are required to have this package completed BEFORE you

More information

Along the center of the mid-ocean ridge is a rift valley that forms when the plates separate.

Along the center of the mid-ocean ridge is a rift valley that forms when the plates separate. Newly formed rock from rising magma rises above sea floor and forms mountain ranges known as midocean ridges. Along the center of the mid-ocean ridge is a rift valley that forms when the plates separate.

More information

Continental Drift. The idea that the world s land masses are slowly moving over time

Continental Drift. The idea that the world s land masses are slowly moving over time Alfred Wegener Continental Drift The idea that the world s land masses are slowly moving over time Pangaea The supercontinent made of all continents that existed millions of years ago. Present Cretaceous

More information

The Theory of Plate Tectonics Name

The Theory of Plate Tectonics Name The Theory of Plate Tectonics Name Intermediate Version Block CHAPTER 1 INTRODUCTION 1. The scientific theory that describes the movement of Earth s outer layer is called. CHAPTER 2 CONTINENTAL DRIFT:

More information

Plate Boundaries & Resulting Landforms

Plate Boundaries & Resulting Landforms Plate Boundaries & Resulting Landforms Divergent Plate Boundaries (plates being pulled apart) Type: oceanic plates Description: rising magma gently lifts the crust creating a ridge. The flow of convection

More information