UNDERSTANDING GEOLOGIC TIME

Size: px
Start display at page:

Transcription

1 Name: Date: Period: UNDERSTANDING GEOLOGIC TIME The earth is 4.6 billion years old. That s a long time! The scale of geologic time is so different from what human beings experience that it s often quite difficult to comprehend. In this activity, you ll be gaining a sense of just how long 4.6 billions years is and what has happened on earth in that time. Examine the geologic time scale below and answer the following questions. 1. How are the three time scales above related to each other? 2. Relative to the overall age of the earth, approximately what percentage of earth s existence was in the Precambrian eon (many people mistakenly call this an era instead)? Show your math work.

2 Follow this link to a geologic Tour Through Time. Use the information at this site as well as prior knowledge to answer the following questions and label your geologic time scale appropriately. 3. Geologically, what was happening on earth in the beginning of the Precambrian? 5. After the Precambrian, the next three eras are known as the Paleozoic, Mesozoic, and Cenozoic eras. You can think of these are the old age, middle age, and current age. During this period of time, the land has cooled enough to support more permanent rocks and sea level rose and fell quite a bit. 6. Briefly summarize the highlights of the following Periods of time: a. Cambrian & Ordovician periods: Was there any life at this time? 4. Single-celled organisms called prokaryotes are first recorded on earth how many years ago? You can find this information in the Precambrian Photo Gallery. Explore some of the Cambrian/Ordovician Label this event neatly on the geologic time scale on the front of this page. You might want to do this part in pencil. What is a eukaryote and when did it form? b. Silurian & Devonian periods: The first animals (multicellular organisms) evolved 700 million years ago. What were those animals like? Explore some of the Silurian/Devonian Label both of these events neatly on the geologic time scale.

3 c. Carboniferous period (in North America, this period is broken into the Mississippian and Pennsylvanian periods): 8. Pangaea formed about 260 million years ago. Neatly label that on your time scale. Do you think Pangaea the first supercontinent? Do you think it will be the last? Explain. Explore some of the Carboniferous 9. The Mesozoic era is known as what? The three time periods in the Mesozoic era are what (in order from oldest to youngest)? d. Permian period: What types of plants evolved during the Mesozoic? What type of animals ruled the earth during the Mesozoic? Explore some of the Permian Explore some of the Mesozoic animals/plants in the Photo Gallery. Describe one of your choice. 7. On the geologic time scale, neatly label the periods by the titles listed below. Cambrian & Ordovician: explosion of life Silurian: life on land Devonian: age of fishes Carboniferous: great swampy forests Permian: beginning of age of reptiles 10. Pangaea started breaking up at the end of the Triassic. Neatly label it on the geologic time scale.

4 11. The dinosaur Stegosaurus lived 160 million years ago, while Tyrannosaurus lived 65 million years ago. Do you think the two of them ever met? 16. Find the Homosapien on the Quaternary landscape. When did Homosapians appear? Neatly label this on the geologic time scale. 17. What is a Hominid? Neatly label both animals on your geologic time scale. 12. The Tertiary Period is known as what? 13. Why do you think there was an explosion of mammals during this period? When did Hominids appear? Neatly label this on the geologic time scale. 18. What is a mass extinction? How many mass extinctions have their been since the beginning of Earth? Explore some of the Tertiary animals/plants in the Photo Gallery. Describe one of your choice. 19. When was the first mass extinction and why 14. The Tertiary period is part of the Cenozoic era, what other time period comprises the Cenozoic era? What epoch and period do we live in (look at the geologic time scale)? 20. When was the second mass extinction and why 15. What happened to the climate during the Quaternary Period?

5 21. When was the third mass extinction and why 23. When was the fifth mass extinction and why 22. When was the fourth mass extinction and why What evidence is there for this mass extinction? 24. Describe the sixth mass extinction and why it s occurring? 25. Mark with a red pencil the mass extinctions on your geologic time scale.

17-1 The Fossil Record Slide 2 of 40

2 of 40 Fossils and Ancient Life What is the fossil record? 3 of 40 Fossils and Ancient Life Fossils and Ancient Life Paleontologists are scientists who collect and study fossils. All information about

Biology. Slide 1 of 40. End Show. Copyright Pearson Prentice Hall

Biology 1 of 40 2 of 40 Fossils and Ancient Life What is the fossil record? 3 of 40 Fossils and Ancient Life The fossil record provides evidence about the history of life on Earth. It also shows how different

17-1 The Fossil Record Slide 1 of 40

1 of 40 Fossils and Ancient Life Fossils and Ancient Life Paleontologists are scientists who collect and study fossils. All information about past life is called the fossil record. The fossil record includes

How do we learn about ancient life? Fossil- a trace or imprint of a living thing that is preserved by geological processes.

Unit 1B Lesson 4 History of Life on Earth How do we learn about ancient life? Paleontologists scientists that studies fossils Fossil- a trace or imprint of a living thing that is preserved by geological

Fossils & The Geologic Time Scale

Fossils & The Geologic Time Scale Fossils Preserved remains or traces of an organism that lived in the past. Fossils are formed when organisms die and are buried in sediment. Eventually the sediment builds

Module 9: Earth's History Topic 3 Content: A Tour of Geologic Time Notes

The geologic time scale holds secrets to the life that has existed on Earth since the beginning of time. It is time for you to take a journey through the history of Earth. 1 Click on each of the segments

Directed Reading. Section: Precambrian Time and the Paleozoic Era EVOLUTION. beginning of life is called. to. PRECAMBRIAN TIME.

Skills Worksheet Directed Reading Section: Precambrian Time and the Paleozoic Era 1. Where is the geologic history of Earth recorded? 2. What kind of information can scientists get from the types of rock

2 Eras of the Geologic Time Scale

CHAPTER 8 2 Eras of the Geologic Time Scale SECTION The History of Life on Earth BEFORE YOU READ After you read this section, you should be able to answer these questions: What kinds of organisms evolved

5 Time Marches On. TAKE A LOOK 1. Identify What kinds of organisms formed the fossils in the picture?

CHAPTER 6 5 Time Marches On SECTION The Rock and Fossil Record BEFORE YOU READ After you read this section, you should be able to answer these questions: How do geologists measure time? How has life changed

Geologic Time. Mr. Skirbst

Geologic Time Mr. Skirbst Geologic Time Geologic Time Scale Describing and dividing major events of Earth s history Like a timeline of your life! Birth Like a timeline of your life! Like a timeline of

What is the Earth s time scale?

Earth History What is the Earth s time scale? The Geological time scale is a record of the life forms and geological events in Earth s history. Scientists developed the time scale by fossils world wide.

Chapter Study Guide Section 17-1 The Fossil Record (pages )

Name Class Date Chapter Study Guide Section 17-1 The Fossil Record (pages 417-422) Key Concepts What is the fossil record? What information do relative dating and radioactive dating provide about fossils?

The Geologic Time Scale (pp. 286 297) This section tells why the geologic time scale is used to show Earth s history, and what the organisms were like and the major events that happened in the different

Earth History. What is the Earth s time scale? Geological time Scale. Pre-Cambrian. FOUR Eras

The Earth is 4.6 billion years old! Earth History Mrs. Burkey ESS Cy Creek HS 17-18 If the Earth formed at midnight 6:00 am First life appears 10:00 pm First animals/plants on land 11:59 pm First humans

Section 17 1 The Fossil Record (pages )

Chapter 17 The History of Life Section 17 1 The Fossil Record (pages 417 422) Key Concepts What is the fossil record? What information do relative dating and radioactive dating provide about fossils? What

The History of Life. Fossils and Ancient Life (page 417) How Fossils Form (page 418) Interpreting Fossil Evidence (pages ) Chapter 17

Chapter 17 The History of Life Section 17 1 The Fossil Record (pages 417 422) This section explains how fossils form and how they can be interpreted. It also describes the geologic time scale that is used

Chapter 19. History of Life on Earth

Chapter 19 History of Life on Earth Adapted from Holt Biology 2008 Chapter 19 Section 3: Evolution of Life Key Vocabulary Terms Adapted from Holt Biology 2008 Cyanobacteria Photosynthetic prokaryotes Adapted

Name Class Date. Crossword Puzzle Use the clues below to complete the puzzle.

Chapter 17 The History of Life Chapter Vocabulary Review Crossword Puzzle Use the clues below to complete the puzzle. 1 2 3 4 5 6 7 8 9 10 11 Across 2. time span shorter than an era, such as Quaternary

Fossils Biology 2 Thursday, January 31, 2013

Fossils Biology 2 Evolution Change in the genetic composition of a group of organisms over time. Causes: Natural Selection Artificial Selection Genetic Engineering Genetic Drift Hybridization Mutation

Spring 2015 8 th Grade The geologic time scale is a record of the major events and diversity of life forms present in Earth s history. The geologic time scale began when Earth was formed and goes on until

Earth History

Earth History 89.331 Course information Prof. Lori Weeden Office: Olney 402b Office phone: 978-934-3344 Lori_weeden@uml.edu Course web page: http://faculty.uml.edu/lweeden/earthlife.htm Earth System History

Geological Time Scale UG Hons.1 st Year) DR. CHANDAN SURABHI DAS ASST. PROF. IN GEOGRAPHY BARASAT GOVT. COLLEGE

Geological Time Scale UG Hons.1 st Year) 1 DR. CHANDAN SURABHI DAS ASST. PROF. IN GEOGRAPHY BARASAT GOVT. COLLEGE 2 Imagine putting everything that has happened on Earth into a one hour time frame! 3 12:00am

14 The History of Life section 1 Fossil Evidence of Change Before You Read Throughout Earth s history, many species have become extinct. On the lines below, name some organisms that have become extinct.

Earth s history can be broken up into 4 time periods: Precambrian Paleozoic Era Mesozoic Era Cenozoic Era

Earth s History Video Clip Earth s History Earth s history can be broken up into 4 time periods: Precambrian Paleozoic Era Mesozoic Era Cenozoic Era Scientists have put together a timeline of Earth s history

Warm Up Name the 5 different types of fossils

Warm Up Name the 5 different types of fossils Timeline that organizes the events in Earths history. Earth is about 4.7 billion years old. More complex organism such as land plants and fish evolved only

The Phanerozoic Eon. 542 mya Present. Divided into 3 Eras The Paleozoic, Mesozoic, and Cenozoic Eras

542 mya Present The Phanerozoic Eon Divided into 3 Eras The Paleozoic, Mesozoic, and Cenozoic Eras The ends of the Paleozoic and Mesozoic Eras were marked by mass extinctions The Cenozoic Era is still

STUDY GUIDE CHAPTERS 12 & 13 GEOLOGIC TIME CHAPTER 12 SECTION 12.1

NAME PERIOD DATE STUDY GUIDE CHAPTERS 12 & 13 GEOLOGIC TIME CHAPTER 12 SECTION 12.1 1. WHAT IS THE PRINCIPLE OF UNIFORMITARIANISM PUT FORWARD BY JAMES HUTTON IN THE LATE 1700 s? 2. HOW DID UNIFORMITARIANISM

Science Data Representation Questions: Strategies and Sample Questions

Science Data Representation Questions: Strategies and Sample Questions Focus on understanding what information is given. Review any additional information given (descriptive paragraphs, headings, scale

Notes on Life & Geologic Time Name:

Notes on Life & Geologic Time Name: S.W.B.A.T Explain how time can be divided into units Relate changes of Earth s to divisions on the geologic time scale Describe how plate tectonics affects Geologic

HISTORICAL GEOLOGY. Relative & Absolute age, fossils and geologic time

HISTORICAL GEOLOGY Relative & Absolute age, fossils and geologic time Historical Geology A. Measuring Time 1. Relative Time (Relative Age) Measurement of time using comparison. No numbers used; uses words

Geological Time How old is the Earth

Geological Time How old is the Earth How old is everything? Universe? Universe ~ 14 Billion Years Old Milky Way Galaxy? Milky Way Galaxy - 10 Billion Years Old Solar System? Solar System -4.6 Billion Years

Name Class Date. 2. What first appeared on Earth during Precambrian time? a. dinosaurs b. mammals c. life d. humans

Skills Worksheet Directed Reading B Section: Eras of the Geologic Time Scale 1. What are the four biggest eras in geologic history? a. Precambrian, Paleozoic, Mesozoic, and Cenozoic b. Precambrian, Prehistoric,

EARTH S HISTORY. What is Geology? logy: science. Geology is the scientific study of the Earth, including its:

EARTH S HISTORY 1 What is Geology? Geo: earth logy: science Geology is the scientific study of the Earth, including its: composition, structure, and physical properties. 2 1 Geologists study: the origin

The History of Life on Earth

CHAPTER 9 VOCABULARY & NOTES WORKSHEET The History of Life on Earth By studying the Vocabulary and Notes listed for each section below, you can gain a better understanding of this chapter. SECTION 1 Vocabulary

Section 17 1 The Fossil Record (pages )

Name Class Date Chapter 17 The History of Life Section 17 1 The Fossil Record (pages 417 422) This section explains how fossils form and how they can be interpreted. It also describes the geologic time

Chapter 25: The Origin and Evolutionary History of Life on Earth

Chapter 25: The Origin and Evolutionary History of Life on Earth Chemical conditions of the early Earth A model for the first cells First life Life changes the planet: oxygenating Earth s oceans and atmosphere

Eras of Earth's History Lesson 6

Eras of Earth's History Lesson 6 May 24 8:42 PM What happened in the Paleozoic Era? What happened in the Mesozoic Era? What happened in the Cenozoic Era? May 24 8:55 PM 1 I. What happened in the Paleozoic

Links to help understand the immensity of the Geologic Time Scale

Links to help understand the immensity of the Geologic Time Scale http://www.bonnechere.ca/naturalhistory.htm http://comp.uark.edu/~sboss/geotime.htm http://www.britannica.com/ebchecked/media/1650/the-geologic-time-scale-from-650-million-years-ago-to

Page 143: Geologic Time

Page 143: Geologic Time Divide pages 144-147 in 6 One for each box: Hadeon Eon Archeon Eon Cambrian Period Ordovician Period Silurian Period Devonian Period Carboniferous Period Mississipian Period Pennsylvanian

TIME LINE OF LIFE. Strip for Clock of Eras representing the circumference. 1. Review the eras represented on the Clock of Eras:

TIME LINE OF LIFE Material Time Line of Life Working Time Line of Life Clock of Eras Strip for Clock of Eras representing the circumference Elastic strip for Clock of Eras Presentation 1: Overview 1. Review

Earth - Home Sweet Home. Sunday, August 18, 13

Earth - Home Sweet Home 1 From Homogeneous to Heterogeneous: Formation of the Solar Systems and Planets 2 Perspective on our place in the The Milky Way Galaxy video Perspective on our place in the The

Geologic Time Scavenger Hunt

Geologic Time Scavenger Hunt Name: Class Period: For this activity, go to the resource page on our class website. Find the link titled Understanding Geologic Time which can be found under the Plate Tectonics

Geologic Time. What have scientists learned about Earth s past by studying rocks and fossils?

Name Geologic Time What have scientists learned about Earth s past by studying rocks and fossils? Before You Read Before you read the chapter, think about what you know about geologic time Record your

Bio 112 Handout for Evolution 8 This handout contains: Today s iclicker Questions Handouts for today s lecture iclicker Question #5A - before lecture Consider the hypothetical creatures on the last page

Age of Earth/Geologic Time. Vocabulary

Age of Earth/Geologic Time Vocabulary Big Ideas Geologic Time Earth Structures Identify current methods for measuring the age of Earth and its parts, including the law of superposition and radioactive

Fossils provide evidence of the change in organisms over time.

Section 1: Fossils provide evidence of the change in organisms over time. K What I Know W What I Want to Find Out L What I Learned Essential Questions What are the similarities and differences between

UNIT 4: History Of Biological Diversity

UNIT 4: History Of Biological Diversity CHAPTER 14: The History of Life PAST NOW FUTURE? What is this? Earth s Early history Approximately 4.6 billion years ago, the Earth was formed when many pieces of

History of Life on Earth The Geological Time- Scale

History of Life on Earth The Geological Time- Scale Agenda or Summary Layout The Geological Time-Scale 1 2 3 The Geological Time-Scale The Beginning of Life Cambrian Explosion The Geological Time-Scale

Outline. Origin and History of Life

Origin and History of Life Chapter 19 Primitive Earth Origin of First Cells Fossils The Precambrian The Paleozoic The Mesozoic The Cenozoic Continental Drift Mass Extinctions Outline 1 2 The Primitive

Good Day everyone! Today is Wednesday 10/4/17

Good Day everyone! Today is Wednesday 10/4/17 Agenda: 1. Warm Up 2. Video: Intro to the Geologic Time Scale 3. Notes: Geologic Time Scale a. How the Geologic Time Scale is Organized b. Principle of Uniformitarianism

History of Life on Earth

Lesson 4 The History of Life on Earth ESSENTIAL QUESTION How has life on Earth changed over time? By the end of this lesson, you should be able to describe the evolution of life on Earth over time, using

1 m 420 million years

Geologic and Biologic Scaled Time-Line Integrated Science 2 Name: Date: Pd: Background The Earth solidified 4.6 billion years ago. Life has been evolving on Earth for more than 3.5 billion years. These

Geologic Time on a Strip of Paper

Geologic Time on a Strip of Paper Introduction The Earth is 4,600,000,000 years old. That s 4.6 billion years! But what does this mean? This activity is designed to help you get a feel for the age of the

Fossils. Name Date Class. A Trip Through Geologic Time Section Summary

Name Date Class A Trip Through Geologic Time Section Summary Fossils Guide for Reading How do fossils form? What are the different kinds of fossils? What does the fossil record tell about organisms and

Unit 6: Interpreting Earth s History

Unit 6: Interpreting Earth s History How do we know that the Earth has changed over time? Regent s Earth Science Name: Topics Relative Dating Uniformitarianism Superposition Original Horizontality Igneous

Name Class Date. Complete each of the following sentences by choosing the correct term from the word bank.

Skills Worksheet Chapter Review USING KEY TERMS Complete each of the following sentences by choosing the correct term from the word bank. Precambrian time Paleozoic era Mesozoic era Cenozoic era 1. During,

Chapter 3 Time and Geology

Chapter 3 Time and Geology Methods of Dating Rocks 1. Relative dating - Using fundamental principles of geology (Steno's Laws, Fossil Succession, etc.) to determine the relative ages of rocks (which rocks

Clues to the Past. Grades 6-8 Educational Program Guide

Clues to the Past Grades 6-8 Educational Program Guide OAS Science Practices: 1, 2, 3, 4, 6, 7, 8 Program Overview The Clues to the Past program will introduce students to several 300 million years old

Activity: Dinosaur Footprints Compiled By: Nancy Volk Name:

Activity: Dinosaur Footprints Compiled By: Nancy Volk Name: STEP 1 Sketch out a box that is 40 cm long and 31 cm wide. Inside this box sketch the print for Euoplocephalus. (see sketch) Determine if Euoplocephalus

1 The origin of life (pp )

ST chapter only Checkup Chapter 10 1 The origin of life (pp. 300 305) 1. Earth took millions of years to form. a) Where did the matter that formed our planet come from? From a cloud of gas and dust that

Earth s History. The principle of states that geologic processes that happened in the past can be explained by current geologic processes.

Earth s History Date: Been There, Done That What is the principle of uniformitarianism? The principle of states that geologic processes that happened in the past can be explained by current geologic processes.

Station Look at the fossil labeled # 16. Identify each of the following: a. Kingdom b. Phylum c. Class d. Genus

Station 1 1. Look at the fossil labeled # 16. Identify each of the following: a. Kingdom b. Phylum c. Class d. Genus 2. Look at the fossil labeled #7. Identify each of the following: a. Kingdom b. Phylum

Bio94 Discussion Activity week 3: Chapter 27 Phylogenies and the History of Life

Bio94 Discussion Activity week 3: Chapter 27 Phylogenies and the History of Life 1. Constructing a phylogenetic tree using a cladistic approach Construct a phylogenetic tree using the following table:

12.1 The Fossil Record. KEY CONCEPT Specific environmental conditions are necessary in order for fossils to form.

KEY CONCEPT Specific environmental conditions are necessary in order for fossils to form. Fossils can form in several ways. Premineralization occurs when minerals carried by water are deposited around

Earth s s Geologic History

The Earth s s Geologic History and The Earth s s Interior Earth s s Geologic History Geologic timescale Divides Earth s s history into relative time periods Relative dating based on: (apply for entire

MOR TIME TEACHERS. ONCE UPON A TIME Activity Overview BIG IDEA

MOR TIME 04 Activity Overview BIG IDEA OBJECTIVE BACKGROUND The geologic time scale can be challenging for students to understand. This activity explores how scientists divide the Earth s long history

Unit 5: Earth s History Practice Problems

Name: Date: 1. Which bedrock would be most likely to contain fossils? A. Precambrian granite B. Cambrian shale C. Pleistocene basalt D. Middle-Proterozoic quartzite 6. Base your answer(s) to the following

TIME. Does not give the. Places events in sequencee 1 st, 2 nd, 3 rd. Gives a. exact date of an event. event. Radioactive Dating.

Geologic History TIME Places events in sequencee 1 st, 2 nd, 3 rd Does not give the exact date of an event Gives a date or time of an event Uses the Law of Superposition Radioactive Dating Youngest Law

1. What is the definition of uniformitarianism? 2. What is the definition of organic? 4. What is the definition of inorganic?

Earth Science Unit 3- History of the Earth Knowledge Packet Learning Target 3B: Have you ever thought about the history of the Earth? No, well you should have because it s pretty cool. Things like mountain

Geologic Time Test Study Guide

Geologic Time Test Study Guide Chapter 12 Section 1 The Earth s Story and Those Who First Listened 1. What is the difference between uniformitarianism and catastrophism? Uniformitarianism: the same geologic

Name of Course. Course Level. Possible subject Areas. Identify quantitative concepts/skills that students will develop. Overview

HOW LONG AGO IS LONG AGO? THE EVOLUTIONARY TIMELINE By LaVonne Batalden Name of Course LaVonne Batalden BIO 212 Evolution and Diversity Module How Long Ago is Long Ago? The Evolutionary Timeline Course

Unit 5 Possible Test Questions Mesozoic and Cenozoic Eras HISTORICAL GEOLOGY

Revised 8/16 Unit 5 Possible Test Questions Mesozoic and Cenozoic Eras HISTORICAL GEOLOGY Mesozoic Era Eons, Eras and Periods 1. List the Mesozoic periods in order (oldest to youngest). End of the Paleozoic

The Eras of the Earth In this lesson, we will study the changes that have taken place on the earth since it was formed 4.5 billion years ago. There have been big changes in the temperature of the land,

Geologic Time. The Cenozoic Era. 7. Mammals evolved after dinosaurs became extinct.

Geologic Time The Cenozoic Era Key Concepts What major geologic events occurred during the Cenozoic era? What does fossil evidence reveal about the Cenozoic era? What do you think? Read the two statements

GEOS 2900 Sample Instructor Notes

3.3.1 THE HISTORY OF THE EARTH GEOS 2900 Sample Instructor Notes Things to do before class begins: 1. Place the following daily agenda on the board: a. Announcements b. Go over Activity 3.2.2 (Absolute

GO ON. Directions: Use the diagram below to answer question 1.

d i a g n o s t i c t e s t : e a r t h a n d s p a c e s c i e n c e question 1. 1. What is the correct order (starting from the surface) of Earth s layers? A crust, outer core, inner core, mantle B mantle,

Origins of Life. Fundamental Properties of Life. The Tree of Life. Chapter 26

Origins of Life The Tree of Life Cell is the basic unit of life Today all cells come from pre-existing cells Earth formed ~4.5 billion years ago (BYA) Chapter 26 As it cooled, chemically-rich oceans were

Fossils, Geologic Time, Absolute & Relative Dating, and Natural Resources. Chapters 5 & 6

Fossils, Geologic Time, Absolute & Relative Dating, and Natural Resources Chapters 5 & 6 How Do Fossils Form? Fossils are found in sedimentary rocks like sandstone, limestone, and shale In Virginia, most

October 26, SWBAT read a geological time scale and identify important events.

Aims: October 26, 2016 SWBAT read a geological time scale and identify important events. Agenda 1. Do Now 2. Class Notes 3. Guided Practice 4. Independent Practice 5. Practicing our AIMS: Homework: EH.1

The Origin of Life. Lab Exercise 18. Contents. Introduction. Objectives

Lab Exercise The Origin of Life Contents Objectives 1 Introduction 1 Activity.1 Geologic Time 2 Activity.2 Time Periods 2 Resutls Section 6 Introduction The history of the earth is recorded in the rocks

The Environment and Change Over Time

The Environment and Change Over Time Fossil Evidence of Evolution 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

Evolution and diversity of organisms

Evolution and diversity of organisms Competency Levels - 7 3.1.1 Uses the theories of origin of life and natural selection to analyze the process of evolution of life 3.2.1 Constructs hierarchy of taxa

THE HISTORY OF THE EARTH EARTH SCIENCE

THE HISTORY OF THE EARTH EARTH SCIENCE FOSSILS Paleontology is the study of life that existed in prehistoric times A fossil is any evidence of earlier life preserved in rock. Shells Bones Petrified trees

Geologic Time. Decoding the Age of our Planet & North Carolina

Geologic Time Decoding the Age of our Planet & North Carolina The Geologic Time Scale Objectives Describe the geologic time scale. Distinguish among the following geologic time scale divisions: eon, era,

SCIENCE SAMPLER ~ Geology ~ Unit 4 of 5

College Guild PO Box 6448, Brunswick ME 04011 SCIENCE SAMPLER ~ Geology ~ Unit 4 of 5 1 Over the past three units we have learned about the birth of the universe, the laws of nature, and the structure

Absolute Age - Radioactive Decay. Absolute Age - Isotopes. Absolute Age - Radioactive Decay

GEOL 100 (Planet Earth) #12 - Earth s Clock Geologic Time - Absolute Age Absolute Age = age of rock (or geologic event) in years. Need constant process as well as record of process; constant process in

3. The diagram below shows how scientists think some of Earth's continents were joined together in the geologic past.

1. The map below shows the present-day locations of South America and Africa. Remains of Mesosaurus, an extinct freshwater reptile, have been found in similarly aged bedrock formed from lake sediments

HOW OLD IS THE EARTH ANYWAYS?

HOW OLD IS THE EARTH ANYWAYS? EXAMINING THE CONCEPT OF GEOLOGIC TIME Did you ever wonder about all of the things that have ever happened on Earth and how old it really is? As it turns out, Mother Earth

Fossils: evidence of past life

Fossils: evidence of past life Remains or traces of prehistoric life Petrified Cavities and pores are filled with precipitated mineral matter Petrified Formed by replacement Cell material is removed and

4) Outline the major developments that allowed life to exist on Earth.

Objectives 4) Outline the major developments that allowed life to exist on Earth. 5) Describe the types of organisms that arose during the four major divisions of the geologic time scale. Each layer of

PTYS 214 Spring Announcements Midterm #4: two weeks from today!

PTYS 214 Spring 2018 Announcements Midterm #4: two weeks from today! 1 Previously Radiometric Dating Compare parent / daughter to determine # of half lives 14C, 40K, 238U, 232Th, 87Ru Evidence for Early

Geologic Time. What is Age? Absolute Age The number of years since the rock formed. (150 million years old, 10 thousand years old.

Geologic Time There are 2 kinds: What is Age? Absolute Age The number of years since the rock formed. (150 million years old, 10 thousand years old.) Relative Age The age compared to the ages of other

Earth Science Ch. 14 Geologic Time. What is geologic time?

Earth Science Ch. 14 Geologic Time What is geologic time? The division of Earth s history into time units back to 4.6 b.y.a. Usually based on the life-forms that lived during certain periods May be based

Unit 1 A. The early life and the Diversification of Prokaryotes (Ch24) B. Origin and Diversification of Eukaryotes (Ch25) C.

Unit 1 A. The early life and the Diversification of Prokaryotes (Ch24) B. Origin and Diversification of Eukaryotes (Ch25) C. Broad Patterns of Evolution (Ch23) D. Meiosis and Sexual Life Cycles (Ch 10)

Origins of Life and Extinction

Origins of Life and Extinction What is evolution? What is evolution? The change in the genetic makeup of a population over time Evolution accounts for the diversity of life on Earth Natural selection is

The Significance of the Fossil Record ( Susan Matthews and Graeme Lindbeck)

The Significance of the Fossil Record ( Susan Matthews and Graeme Lindbeck) The fossil record indicates the evolutionary history of life. Many events together, including: continental drift, changes in

The principle of fossil succession allows strata in different parts of the world to be correlated, and worldwide relative ages to be worked out

Correlating beds using index fossils Stratigraphic Classification: Piles of stratified rocks need to be classified. A formation is an easily identifiable rock unit that differs from layers above and below

I. History of Life on Earth

Evolution I. History of Life on Earth I. History of Life A. Early History of Earth I. Early earth was inhospitable hot, with many volcanoes little free oxygen and lots of carbon dioxide other gases present: