Plate Tectonics. Goal 2.1

Size: px
Start display at page:

Download "Plate Tectonics. Goal 2.1"

Transcription

1 Plate Tectonics Goal 2.1

2 Lesson 1 Plate Tectonics: An Overview

3 Think About It Look at the map below. Which two continents look like they d fit together?

4 Focus Question How do Earth s tectonic plates cause volcanoes to form? earthquakes to occur? Earth s surface features to form?

5 1. What is the theory of continental drift? Continental Drift The continents had once been joined as a single landmass that split (drifted) apart.

6 Continental Drift 2. What was Pangaea? the ancient super- continent

7 3. Evidence Supporting Continental Drift a. the puzzle-like fit continents on either side of the Atlantic Ocean

8 Evidence Supporting Continental Drift Rocks and Fossils b. Rock formations & fossils on both sides of the Atlantic Ocean match.

9 Evidence Supporting Continental Drift Fossils

10 Evidence Supporting Continental c. Climate changes... Coal deposits in Antarctica (warmer and farther north) Glacial erosion in India, Africa, and Australia (colder and farther south) Drift Climate

11 Seafloor Spreading 1. The theory of seafloor spreading states new ocean crust is formed at the ridges and destroyed at trenches.

12 Seafloor Spreading

13 How we know what s down there!

14 2. Preview of the Ocean Floor a. An ocean ridge is vast, underwater mountain range the longest on Earth! b. A deep sea trench is narrow, elongated depression in the ocean floor - deepest part of the ocean 11 km deep! See next slide

15 The Ocean Floor

16 Evidence for Seafloor Spreading a. Ocean rocks and sediments are younger at the midocean ridges.

17 Evidence for Seafloor Spreading b. Magnetism Basalt provides an accurate record of ancient paleomagnetism. i. Earth has had a series of magnetic reversals or changes in its magnetic field. ii. These are recorded in the ocean floor. The magnetic pattern on either side of a midocean ridge is a mirror image. DRAW ME!!

18 DRAW ME!!

19 How Seafloor Spreading Occurs Step 1: Magma rises and fills the gap. Step 2: Magma solidifies to form new crust. Step 3: New crust is continually made and pushes the older crust to the outer edges of the ocean. See next slides

20 A Bigger View!

21

22 The Theory of Plate Tectonics 1. The theory of plate tectonics Earth s rigid crust and upper mantle is broken into large plates.

23 2. Plate Boundaries (Add to Lesson 1.) a. Divergent plates separate b. Convergent plates are moving toward each other c. Transform slide horizontally past each other Click here to investigate the boundaries

24 The Plates Australian plate - pink or lighter orange, Nazca & Scotia plates lighter blue

25 Lesson 2 Plate Tectonics Divergent Boundaries

26 Think About It Why do some parts of Earth have volcanoes and earthquakes and others don t?

27 Focus Question What geologic activity occurs at a divergent plate boundary?

28 Plate Boundaries: The Big Pic

29 Divergent Boundary 1. A divergent boundary is one where the plates are separating or moving apart.

30 2. Geological Processes a. High heat flow magma pushes up into the rift valley.

31 2. Geological Processes b. Volcanoes formed by the magma rising at the rift valley

32 2. Geological Processes c. Earthquakes caused by the magma breaking rocks on its way to the surface

33 Divergent Boundaries 3. Divergent boundaries form rift valleys where magma rises, solidifies, & pushes plates apart. DRAW ME!!

34 Divergent Boundary 4. The underwater mountain range formed at divergent boundaries in every ocean is The midocean ridge

35 5. Examples - Iceland

36 East Africa Rift Valley

37 The Midocean Ridges

38 Lesson 3 Convergent Boundaries

39 Think About It Where do many of our most devastating earthquakes occur?

40 Focus Question What geologic activity occurs at a convergent plate boundary?

41 Plate Boundaries: The Big Pic

42 Convergent Plate Boundaries There are 3 types of convergent plate boundaries depending on their locations Ocean/continental Ocean/ocean Continental/continental We will look at each type separately

43 Convergent Boundaries: Ocean/Ocean 1. Subduction is the process of one plate going under another. The process of subduction creates a deep-sea trench. 2. The underground edge of the subducting plate melts because it is pulled deep into Earth s crust. Melted crust rises to form a volcanic island arc.

44 Effects of Plate Snapping 3. Two devastating effects of a plate snapping back are a. Earthquakes b. Tsunamis See clips

45 Convergent Boundaries: Ocean/Ocean 4. The type of fault found at this boundary is reverse

46 Let s Draw! Convergent Boundaries: Ocean/Ocean DRAW ME!!

47 Convergent Boundaries: Ocean/Ocean 5. Examples of this are a. Mariana Islands b. Japan c. Indonesia

48 Convergent Boundaries: Ocean/Ocean Another Example The Japanese Islands

49 Convergent Boundaries: Ocean/Continental 1. The oceanic plate subducts under the continental plate. (It is denser.) 2. A volcanic mountain range forms on land above the subduction zone. 3. Examples include Andes Mountains (S. America) and the Cascade Mountains in N. America)

50 Convergent Boundaries: Ocean/Continental The Andes of S. America The Cascades of N. America

51 Let s Draw! Convergent Boundaries: Ocean/Continental DRAW ME!!

52 Convergent Boundaries: Continental/Continental 1. A folded mountain range is formed when two continental plates collide. (They are both too thick to go under.) 2. Examples include the Himalaya Mountains and the European Alps. DRAW ME!! Let s Draw!

53 The Appalachian Mountains and the Piedmont They started as a continental fragment and a volcanic island arc about mybp. The continental fragment moved west & became the Blue Ridge Province. ( mybp) The island arc moved west & became the Piedmont Province. ( mybp) The folded Valley and Ridge (c/c) formed when the N. American and African plates collided. ( mybp)

54

55 Lesson 4 Transform Boundaries

56 Transform Boundaries 1. Transform refers to moving across. 2. At transform boundaries, crust is only deformed or fractured. 3. Volcanoes and mountains don t form here because there is NO vertical movement of the plates. 4. The type of faults formed here are called strike-slip faults 5. Transform boundaries are characterized by shallow earthquakes. DRAW ME!!

57 Haiti, 1/2010 (7) 6. Examples include: San Andreas Fault in California Haiti

58 Plate Boundary Activity

59 Causes of Plate Movements 1. Large-scale motion in the mantle drives the movement of the plates.

60 Causes of Plate Movements 2. Definitions a.mantle layer of Earth beneath the crust b.asthenosphere partially molten layer of the mantle

61 Causes of Plate Movements Definitions c. Convection transfer of thermal energy by the movement of heated matter d. Convection current pattern of motion produced by warmer matter moving up and cooler matter sinking

62 Causes of Plate Movements 3. The tectonic plates move by a. The rising part of the convection current spreads out as it reaches the upper mantle which lifts and splits the lithosphere at divergent plate boundaries. b. The downward part of the convection current creates a sinking force that pulls tectonic plates downward at convergent boundaries.

63 Causes of Plate Movements 3. The tectonic plates move by c. Ridge push - the force created by the weight of the uplifted ridge which pushes an oceanic plate towards a trench. (at a subduction zone) d. Slab pull - process in which the weight of the subducting plate helps pull the trailing lithosphere into the subduction zone.

64 DRAW ME!! Causes of Plate Movements

65 Causes of Plate Movements

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

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

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

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

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

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

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

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

UNIT 11 PLATE TECTONICS

UNIT 11 PLATE TECTONICS UNIT 11 PLATE TECTONICS 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

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

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

Plate Tectonics Unit II: Plate Boundaries (3.5 pts)

Plate Tectonics Unit II: Plate Boundaries (3.5 pts) T. James Noyes, El Camino College Plate Tectonics Unit II: The Plate Boundaries (Topic 11A-2) page 1 Name: Section: Plate Tectonics Unit II: Plate Boundaries (3.5 pts) Plate Boundaries We will now discuss

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

Introduction To Plate Tectonics Evolution. (Continents, Ocean Basins, Mountains and Continental Margins)

Introduction To Plate Tectonics Evolution. (Continents, Ocean Basins, Mountains and Continental Margins) Introduction To Plate Tectonics Evolution (Continents, Ocean Basins, Mountains and Continental Margins) Geo 386 (Arabian Shield Course) Dr. Bassam A. A. Abuamarah Mohanna G E O 3 8 6 A R A B I A N G E

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

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

ANOTHER MEXICAN EARTHQUAKE! Magnitude 7.1, Tuesday Sept. 19, 2017

ANOTHER MEXICAN EARTHQUAKE! Magnitude 7.1, Tuesday Sept. 19, 2017 ANOTHER MEXICAN EARTHQUAKE! Magnitude 7.1, Tuesday Sept. 19, 2017 Why is there no oceanic crust older than 200 million years? SUBDUCTION If new oceanic crust is being continuously created along the earth

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

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

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

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

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

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

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

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

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

ES Ch 17 Plate Tectonics

ES Ch 17 Plate Tectonics The red triangles mark the location of????? 1 Why are they there?? Chapter 17 Plate Tectonics 2 Chapter 17 Plate Tectonics: Objectives Objectives Continued 1. Describe early evidence that led people to

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

1.4 Notes: Plates Converge or Scrape Past Each Other Think About Tectonic Plates Push Together at Convergent Boundaries

1.4 Notes: Plates Converge or Scrape Past Each Other Think About Tectonic Plates Push Together at Convergent Boundaries 1.4 Notes: Plates Converge or Scrape Past Each Other Think About If new crust is created at divergent boundaries, why does the total amount of crust on Earth stay the same? Tectonic Plates Push Together

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

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

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

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

Plates Moving Apart Types of Boundaries

Plates Moving Apart Types of Boundaries Plates Moving Apart Types of Boundaries PLATE TECTONICS IS The theory that the Earth s crust is broken into slabs of rock that move around on top of the asthenosphere. How fast are plates moving? The Arctic

More information

Practice Questions: Plate Tectonics

Practice Questions: Plate Tectonics Practice Questions: Plate Tectonics 1. Base your answer to the following question on The block diagram below shows the boundary between two tectonic plates. Which type of plate boundary is shown? A) divergent

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

In the space provided, write the letter of the definition that best matches the term or phrase.

In the space provided, write the letter of the definition that best matches the term or phrase. Skills Worksheet Directed Reading Section: The Changing Continents 1. What is the result of slow movements of tectonic plates? RESHAPING EARTH S CRUST In the space provided, write the letter of the definition

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

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

A) B) C) D) 4. Which diagram below best represents the pattern of magnetic orientation in the seafloor on the west (left) side of the ocean ridge?

A) B) C) D) 4. Which diagram below best represents the pattern of magnetic orientation in the seafloor on the west (left) side of the ocean ridge? 1. Crustal formation, which may cause the widening of an ocean, is most likely occurring at the boundary between the A) African Plate and the Eurasian Plate B) Pacific Plate and the Philippine Plate C)

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

TECTONIC PLATES. reflect

TECTONIC PLATES. reflect reflect Has anyone ever told you to sit still? You may do as you re told, but in truth, you can never really sit still. You have probably already learned that Earth is constantly moving through space,

More information

Crustal Boundaries. As they move across the asthenosphere and form plate boundaries they interact in various ways. Convergent Transform Divergent

Crustal Boundaries. As they move across the asthenosphere and form plate boundaries they interact in various ways. Convergent Transform Divergent Name: Date: Period: Plate Tectonics The Physical Setting: Earth Science CLASS NOTES Tectonic plates are constantly moving and interacting As they move across the asthenosphere and form plate boundaries

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

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

Earth s Interior StudyGuide

Earth s Interior StudyGuide Name Date Period Earth s Interior StudyGuide 1. The two main elements that make up the Earth s crust are and. 2. The Earth s inner core is made of solid and. 3. When one plates slides under another plate

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

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

Looking at the world map, what do you notice about the shape of the continents? Jot down your ideas on your paper

Looking at the world map, what do you notice about the shape of the continents? Jot down your ideas on your paper Looking at the world map, what do you notice about the shape of the continents? Jot down your ideas on your paper The thing is the world didn t always look like this! It used to look like this: How is

More information

Theory of Continental Drift

Theory of Continental Drift Plate Tectonics Theory of Continental Drift Alfred Wegener suggested that continents had once been part of a supercontinent named Pangaea, that later broke up. The pieces moved apart over millions of years

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

CONTINENTAL DRIFT THEORY

CONTINENTAL DRIFT THEORY CONTINENTAL DRIFT THEORY Proof or crazy idea? CONTINENTAL DRIFT THEORY What is Continental Drift Theory? Continental drift theory (CDT): Alfred Wegener found all the continents were once together called

More information

Before Plate Tectonics: Theory of Continental Drift

Before Plate Tectonics: Theory of Continental Drift Before Plate Tectonics: Theory of Continental Drift Predecessor to modern plate tectonics Shape and fit of the continents was the initial evidence Snider-Pelligrini (1858) Taylor (1908) Wegner (1915) Fig.

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

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

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

The Rock Cycle & Plate Tectonics

The Rock Cycle & Plate Tectonics The Rock Cycle & Plate Tectonics I. The Rock Cycle 1. Rocks are the most common material on Earth. 2. They are made up of one or more minerals. A. The rock cycle explains how Earth processes change a rock

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

Plate Tectonics. A. Continental Drift Theory 1. Early development 2. Alfred Wegener s mechanism

Plate Tectonics. A. Continental Drift Theory 1. Early development 2. Alfred Wegener s mechanism Plate Tectonics A. Continental Drift Theory 1. Early development 2. Alfred Wegener s mechanism B. Seafloor Spreading 1. Earthquakes and volcanoes 2. Seafloor maps and dates 3. Continental drift revisited

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

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

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

FORCES ON EARTH UNIT 3.2. An investigation into how Newton s Laws of Motion are applied to the tectonic activity on Earth.

FORCES ON EARTH UNIT 3.2. An investigation into how Newton s Laws of Motion are applied to the tectonic activity on Earth. FORCES ON EARTH UNIT 3.2 An investigation into how Newton s Laws of Motion are applied to the tectonic activity on Earth. USE THESE NOTES: OUR HOME PLANET EARTH: What do you know about our planet? SO.HOW

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

* If occurs, fossils that formed in shallow water may be found in water. Subsidence mean the crust is.

* If occurs, fossils that formed in shallow water may be found in water. Subsidence mean the crust is. Name Notes: Topic 5B Topic 5B: The Dynamic Crust A. What evidence exists that proves the Earth s Crust is and has moved? Earth Science 1. Tilted, folded or faulted strata Strata is a term that refers to.

More information

Plate Tectonics. 8 th grade

Plate Tectonics. 8 th grade Plate Tectonics 8 th grade Not in notes- look at picture If you look at a map of Earth s surface, you can see that the edges of some continents look as though they could fit together like a puzzle Wegener

More information

Plate Tectonics. Structure of the Earth

Plate Tectonics. Structure of the Earth Plate Tectonics Structure of the Earth The Earth can be considered as being made up of a series of concentric spheres, each made up of materials that differ in terms of composition and mechanical properties.

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. 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

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

Alfred Wegener gave us Continental Drift. Fifty years later...

Alfred Wegener gave us Continental Drift. Fifty years later... CHAPTER 2 Plate Tectonics and the Ocean Floor Plate Tectonics: summary in haiku form Alfred Wegener gave us Continental Drift. Fifty years later... Words Chapter Overview Much evidence supports plate tectonics

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

Plate Tectonics. By Destiny, Jarrek, Kaidence, and Autumn

Plate Tectonics. By Destiny, Jarrek, Kaidence, and Autumn Plate Tectonics By Destiny, Jarrek, Kaidence, and Autumn .The Denali Fault and San Andreas Fault - The San Andreas Fault is a continental transform fault that extends roughly 1300 km (810 miles) through

More information

Plate Tectonics Notes

Plate Tectonics Notes Plate Tectonics Notes Last 30 Days Earthquakes Physical Features Last 30 Days Earthquakes with Plate Boundaries Earth s Structure Earth s Layers Core: Inner Core: Center of the earth, solid ball of metal

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

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

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

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

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

Essentials of Oceanography Eleventh Edition

Essentials of Oceanography Eleventh Edition Chapter Chapter 1 2 Clickers Lecture Essentials of Oceanography Eleventh Edition Plate Tectonics and the Ocean Floor Alan P. Trujillo Harold V. Thurman Chapter Overview Much evidence supports plate tectonics

More information

MAR110 Lecture #4 Fundamentals of Plate Tectonics

MAR110 Lecture #4 Fundamentals of Plate Tectonics 1 MAR110 Lecture #4 Fundamentals of Plate Tectonics The Ocean Sea Floor is formed Along the Mid-Ocean Ridge Spreading Centers The Ocean Sea Floor is destroyed in the Subduction Zones Figure 4.2 Convection

More information

Convergent plate boundaries. Objective to be able to explain the formation and key features of these zones.

Convergent plate boundaries. Objective to be able to explain the formation and key features of these zones. Convergent plate boundaries Objective to be able to explain the formation and key features of these zones. Destructive plate margins When plates collide due to convection currents/slab pull in the asthenosphere

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

I. Earth s Layers a. Crust: Earth s outside layer. Made of mostly rock. i. Continental: er; made of mostly granite, forms the continents and shallow

I. Earth s Layers a. Crust: Earth s outside layer. Made of mostly rock. i. Continental: er; made of mostly granite, forms the continents and shallow I. Earth s Layers a. Crust: Earth s outside layer. Made of mostly rock. i. Continental: er; made of mostly granite, forms the continents and shallow sea beds, floats! ii. Oceanic: er; dense rock such as

More information