...Medhurst General Purpose: To inform (Theory) Specific Purpose: My purpose is to inform my audience about the theory of Continental Drift. Central Idea: My central idea is making sure my audience has a better understanding of the Continental Drift and how the theory was formulated. The Continental Drift Theory` I.(Introduction) For years scientists struggled to explain how similar rocks and fossils were found on continents that are far apart from each other. Until the 20th century when scientist Alfred Wegener's theory of Continental Drift was introduced. A. "Before Wegner introduced his theory it was thought that mountains formed because the Earth was cooling down, and in doing so contracted. This was believed to form wrinkles, or mountains, in the Earth's crust. Wegener suggested that mountains were formed when the edge of a drifting continent collided with another, causing it to crumple and fold". ("The Earth in the Universe,"1999) -BBC reference. 1. Alfred Wegner noticed that the continents seemed to fit together at the edge of their continental shelves . 2. He noticed this because he observed that continents in the Southern Hemisphere have similar rock and fossil patterns. B. He believed that the continents were all once apart of a large supercontinent called Pangea. II. Aside from fossils and rock patterns there were other observations that led to his theory. A. "Glacial till deposits in the Southern Hemisphere aided Wegners hypothesis".("The supporting...
Words: 466 - Pages: 2
...The summary of the Deep… Everyone used to think that the bottom floor was a mystery. Many scientists were baffled as how it looks like and the map details of it. In fact it was said that mars was more known than the ocean floors. It was not until German scientist Alfred Wegener came up with the idea after extensive research and travelling. He had finally collected enough samples to conclude that all dry lands were once one continent called Pangea. This continent broke up 200 millions years ago and drifted to their present positions. He reasoned that south America and Africa were once connected with many evidence to back up his theory he pointed out the ancient climate similarities, fossil evidence and similarity of rock structures. Years later this theory was finally accepted and Mateen de Wit an ecologists one of whom also found his theory to be correct as all the proofs of fossils and rocks in the ocean of south America and Africa shared some similarities. Also marine geologists Joe Cann, found this to be true from his findings regarding undulation of ocean floor from time to time. During the cold war, submarines were commonly used. By both the Americans and the Soviets, but in order for the submarines to travel safely through the unknown deep seas, a map of the ocean floor must be made to guide these submarines. So American oceanographer Bruce Heezen and Marie Tharp and others prepared maps of the ocean floor and the mid-atlantic ridge and rift system, a mountainous chain...
Words: 510 - Pages: 3
...Module 1 Questions Module 1 Questions Module 2 Questions Module 2 Questions Module 2 Questions Module 2 Questions Module 2 Questions Module 1 Questions Module 1 Questions Module 2 Questions Module 2 Questions Module 2 Questions Module 1 Questions Module 2 Questions Module 2 Questions Module 1 Questions Module 1 Questions Module 2 Questions Module 2 Questions Module 1 Questions Module 2 Questions Module 1 Questions Module 2 Questions Module 2 Questions Module 2 Questions Module 1 Questions Module 1 Questions Module 1 Questions Module 1 Questions Module 1 Questions Module 2 Questions Module 2 Questions Module 2 Questions Module 2 Questions Module 1 Questions Module 1 Questions Module 1 Questions Module 2 Questions Module 1 Questions Module 1 Essay Questions Question Why small particles weather faster than large ones: Why is silica the major component of magma?: Why clay doesn't weather Which type of magma is primarily associated with high viscosities? Which type of basaltic lava flow has its surface covered with sharp-edged, angular blocks and rubble? Which type of basaltic lava flow has a fairly smooth, unfragmented, ropy surface? Which the following denotes the positively charged particles in an atom's nucleus? Which sedimentary rock listed below has a biochemical origin? Which sedimentary rock consists of materials that originated and were transported as solid particles? Which rock type is associated with a high-energy environment (such as a very turbulent stream)? Which property...
Words: 4036 - Pages: 17
...to the surface of the continental crust you’ll find Granite. In earth Mantle: Peridotite, Garnet Peridotite, both are iron rich. Seismic Waves: P Wave: can travel through molten iron (outer core) S wave: cant travel through outer core Outer Core: liquid, iron and nickel Inner Core: solid, iron and nickel -Increase in P-wave velocity and increase in density -Keep in mind: Moho Drifting Continents and Spreading Seas Plate Tectonics: Unifying theory of geology developed in 1960’s, outer layer of Earth’s crust (lithosphere, lito = rock)consists of separate plates that move around. Explains locations of: earthquakes, volcanoes, mountain belts Antonio Snider-Pelleginer: says its all together (the plate) Alfred Wegener(1880-1930): first proposed the Hypothesis of Continetal drift: The Origin of the Continents and Oceans (1915) **What evidence supported Wegener’s continental drift hypothesis?** 1. Obvious fit of continents 2. Evidence for the distribution of glaciers a. Glaciation (260-280 Ma) Striations: direction, till deposits: perimeter. If continents were connected, one large ice cap explains these observations. Climate belts from ancient environments seem to match across continents. 3. Distribution of fossils a. Each continent has unique assemblage of terrestrial species b. “Isolated” by large ocean basins -Mesosaurus, freshwater reptile lived ~286 Ma, lived in South America and Africa at the same time. c. Otherwise...
Words: 1435 - Pages: 6
...Option 1 – Tectonic Activity and Hazards What are tectonic hazards and what causes them? 1. Introduction Tectonic hazards have to be distinguished from tectonic events. Hazards tend to refer to those events or items that pose a threat to humans and their lifestyle. Therefore, a tectonic hazard is one which involves tectonic processes being hazardous to humans. In the first part of my essay I will be explaining exactly what is meant by tectonic processes and will be referring to the relatively new concept of Plate Tectonics which, although being presented as a theory in 1912 by Alfred Wegener, was not actually taken as the standard model until the late 1960’s and even then was being criticized by many learned scholars into the 1980’s. I will then explain what the main types of hazards are in tectonics, namely volcanoes (openings in the earth crust from which material from below the earth’s surface can be ejected) and earthquakes (movement in the earth’s crust that causes shaking of the ground above). However, there are many more hazards that can be associated with these two, namely tsunamis and from volcanoes, pyroclastic flows, lahars and volcanic gases. What causes these hazards should be explained in my explanation of plate tectonics. Throughout my assignment, I will be using many examples of tectonic hazards from around the globe, but will be focusing on certain case studies to try and explain exactly what causes tectonic hazards. I will be using the San Andreas Fault...
Words: 2225 - Pages: 9
...HIST Y AN PHILO PHY TORY ND P OSOP Y OF S ENCE SCIE E COMM MON CO OURSE IN ENG E GLISH BBA (I Seme A ester) BA/BS (IV Se Sc emester) 2011 A dmission onwards o UNIV VERSI ITY OF CAL F LICUT SC CHOOL OF DI L ISTANC EDU CE UCATIO ON Calicut Universi P.O. M ity Malappur ram, Kera India 673 635 ala, a 106 School of Distance Education UNIVERSITY OF CALICUT SCHOOL OF DISTANCE EDUCATION BBA (I Semester) BA/BSc (IV Semester) Common Course in English 2011 Admission onwards HISTORY AND PHILOSOPHY OF SCIENCE MODULE I & II Prepared by : House No. 21 “Pranaam” Keltron Nagar, Kolazhi, Thrissur Ms. GAYATHRI MENON .K MODULE III & IV Prepared by: Ms. SWAPNA M.S. Department of English K. K. T. M. Govt. College Pullut, Thrissur Dr. Anitha Ramesh K Associate Professor Department of English ZG College, Calicut © Reserved 2 Scrutinised by : Layout: Computer Section, SDE History and Philosophy of Science School of Distance Education Contents MODULE I ANCIENT HISTORY OF SCIENCE 1. Introduction 2. Origins of Scientific Enquiry 3. European Origins of Science 4. Contributions of Early India 5. Science in China 6. The role of Arabs in the History of Science MODULE 2 7. Science in the Middle Ages MODULE 3 MODERN SCIENCE 8. Newton and After 9. The Advancing Frontiers: Modern Medicine to Nanotechnology MODULE 4 PHILOSOPHY OF SCIENCE 10. Basic concepts in the Philosophy of Science 11. Some Issues in the Philosophy...
Words: 34637 - Pages: 139
...Instructor’s Manual and Test Bank to accompany A First Look at Communication Theory Sixth Edition Em Griffin Wheaton College prepared by Glen McClish San Diego State University and Emily J. Langan Wheaton College Published by McGrawHill, an imprint of The McGrawHill Companies, Inc., 1221 Avenue of the Americas, New York, NY 10020. Copyright Ó 2006, 2003, 2000, 1997, 1994, 1991 by The McGrawHill Companies, Inc. All rights reserved. The contents, or parts thereof, may be reproduced in print form solely for classroom use with A First Look At Communication Theory provided such reproductions bear copyright notice, but may not be reproduced in any other form or for any other purpose without the prior written consent of The McGrawHill Companies, Inc., including, but not limited to, in any network or other electronic storage or transmission, or broadcast for distance learning. PREFACE Rationale We agreed to produce the instructor’s manual for the sixth edition of A First Look at Communication Theory because it’s a first-rate book and because we enjoy talking and writing about pedagogy. Yet when we recall the discussions we’ve had with colleagues about instructor’s manuals over the years, two unnerving comments stick with us: “I don’t find them much help”; and (even worse) “I never look at them.” And, if the truth be told, we were often the people making such points! With these statements in mind, we have done some serious soul-searching about the texts that so many teachers—ourselves...
Words: 159106 - Pages: 637
...What Is LGBT? LGBT stands for lesbian, gay, bisexual and transgender and along with heterosexual they describe people's sexual orientation or gender identity. These terms are explained in more detail here. Lesbian A lesbian woman is one who is romantically, sexually and/or emotionally attracted to women. Many lesbians prefer to be called lesbian rather than gay. Gay A gay man is one who is romantically, sexually and/or emotionally attracted to men. The word gay can be used to refer generally to lesbian, gay and bisexual people but many women prefer to be called lesbian. Most gay people don't like to be referred to as homosexual because of the negative historical associations with the word and because the word gay better reflects their identity. Bisexual A bisexual person is someone who is romantically, sexually and/or emotionally attracted to people of both sexes. Transgender or Trans Is an umbrella term used to describe people whose gender identity (internal feeling of being male, female or transgender) and/or gender expression, differs from that usually associated with their birth sex. Not everyone whose appearance or behaviour is gender-atypical will identify as a transgender person. Many transgender people live part-time or full-time in another gender. Transgender people can identify as transsexual, transvestite or another gender identity. Gender Identity One's gender identity refers to whether one feels male, female or transgender (regardless of one's biological...
Words: 19540 - Pages: 79
...C hapter Two: The Basics of Logical Reasoning The Logical Reasoning Section The focus of this book is on the Logical Reasoning section of the LSAT, and each Logical Reasoning section contains a total of 24 to 26 questions. Since you have thirty-five minutes to complete the section, you have an average of approximately one minute and twenty-five seconds to complete each question. Of course, the amount of time you spend on each question will vary with the difficulty of each question and the total number of questions per section. For virtually all students the time constraint is a major obstacle, and as we progress through this book we will discuss time management techniques as well as time-saving techniques that you can employ within the section. The Section Directions Each Logical Reasoning section is prefaced by the following directions: “The questions in this section are based on the reasoning contained in brief statements or passages. For some questions, more than one of the choices could conceivably answer the question. However, you are to choose the best answer; that is, the response that most accurately and completely answers the question. You should not make assumptions that are by commonsense standards implausible, superfluous, or incompatible with the passage. After you have chosen the best answer, blacken the corresponding space on your answer sheet.” On average, you have 1 minute and 25 seconds to complete each question. Because these directions precede...
Words: 175039 - Pages: 701
...The Future of English? A guide to forecasting the popularity of the English language in the 21st century David Graddol First published 1997 © The British Council 1997, 2000 All Rights Reserved This digital edition created by The English Company (UK) Ltd David Graddol hereby asserts and gives notice of his right under section 77 of the UK Copyright, Designs and Patents Act 1988 to be identified as the author of this work. What is this book about? This book is about the English language in of the English language and concludes that forecasting, identifies the patterns which the 21st century: about who will speak it and for what purposes. It is a practical the future is more complex and less predictable than has usually been assumed. underlie typical linguistic change and describes the way large corporations have briefing document, written for educationists, politicians, managers – indeed any decision maker or planning team with a professional interest in the development of English worldwide. The book has been commissioned by the British Council to complement the many texts already available about the teaching and learning of English, the history and used ‘scenario planning’ as a strategy for coping with unpredictable futures. Section three outlines significant global trends which will shape the social and economic world in the 21st century. Section four discusses the impacts these trends are The Future of English? takes stock...
Words: 62119 - Pages: 249
...A BRIEF CONTENTS PART 1 • GETTING STARTED 1. Becoming a Public Speaker 2. From A to Z: Overview of a Speech 3. Managing Speech Anxiety 4. Ethical Public Speaking 5. Listeners and Speakers 1 2 8 1 4 23 30 PART 2 • DEVELOPMENT 6. Analyzing the Audience 7. Selecting a Topic and Purpose 8. Developing Supporting Material 9. Locating Supporting Material 10. Doing Effective Internet Research 1 Citing Sources in Your Speech 1. 36 37 49 57 64 73 83 PART 3 • ORGANIZATION 1 Organizing the Speech 2. 1 Selecting an Organizational Pattern 3. 1 Outlining the Speech 4. 92 93 103 1 10 PART 4 • STARTING, FINISHING, AND STYLING 15. Developing the Introduction and Conclusion 16. Using Language 1 22 1 23 1 31 PART 5 • DELIVERY 1 Choosing a Method of Delivery 7. 18. Controlling the Voice 19. Using the Body 1 39 1 40 1 44 1 48 PART 6 • PRESENTATION AIDS 20. Types of Presentation Aids 21. Designing Presentation Aids 22. A Brief Guide to Microsoft PowerPoint 154 155 161 164 PART 7 • TYPES OF SPEECHES 23. Informative Speaking 24. Persuasive Speaking 25. Speaking on Special Occasions 1 74 1 75 188 21 7 PART 8 • THE CLASSROOM AND BEYOND 230 26. Typical Classroom Presentation Formats 27. Science and Mathematics Courses 28. Technical Courses 29. Social Science Courses 30. Arts and Humanities Courses 31. Education Courses 32. Nursing and Allied Health Courses 33. Business Courses and Business Presentations 34. Presenting in Teams 35. Communicating in Groups 231 236 240 243 246 248 25 1 253 258...
Words: 104318 - Pages: 418
