What is the Earth s time scale?
|
|
- Kelly McBride
- 6 years ago
- Views:
Transcription
1 Earth History
2 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. Radioactive dating (like Carbon Dating) helped determine the absolute divisions in the time scale.
3 Geological time Scale (largest to smallest) Super-eon Eon Era* - 4 Period* -11 Epoch - Current Age - Current
4 Current Middle Past Q T C J T P C D S O C Question? Tough Contest Judge To Pizza Cook Deliciously So Oscar Could
5 Other Mnemonic Devices Chris Ordered Some Delicious Pizza That Just Cost Twenty Quarters Cold Oysters Seldom Develop Many Precious Pearls, Their Juices Congeal To Quickly (Parents) Can Only Sit Down Carefully; Perhaps Their Joints Can't Tolerate Quickness
6 FOUR Eras PRE-CAMBRIAN 88% of earth s history Paleozoic (ancient life) 544 million years ago lasted 300 million yrs Mesozoic (middle life) 245 million years ago lasted 180 million yrs Cenozoic (recent life) 65 million years ago continues through present day
7 Pre-Cambrian Began with the formation of the Earth 4.6 billion years ago. Accounts for 88% of whole Earth History.
8 Paleozoic Era Ancient Life Explosion of life in the oceans began during this era. Most of the continents were covered in warm, shallow seas. Invertebrates were dominate Fish emerged which led to the arrival of amphibians The early coal forming forests were also formed during this time. Carboniferous Period
9 Paleozoic Era Divided into 6 periods: Cambrian period - Age of the Trilobites Ordovician period - First fishes evolved and other species become extinct Silurian period - Land plants, insects and spiders appear
10 Devonian period - Amphibians Carboniferous period - Reptiles evolve. Where we get most of our coal/fossil fuel now. Permian period - insects and reptiles become widespread.
11 Trilobites Lived in Earth s ancient seas Extinct before the dinosaurs came into existence Cambrian Period is known as the Age of the Trilobites
12 END of the Paleozoic Era the largest mass extinction in history wiped out approximately 90% of all marine animal species and 70% of land animals. Possible causes of this Mass Extinction Event Lowering of sea levels when the continents were rejoined as Pangaea (convergent boundary) Increased volcanic activity (ash and dust) Climate changes cooler climate
13 Mesozoic Era Middle Life At the beginning of this era the continents were joined as Pangaea. Pangaea broke up around the middle of this era. Reptiles became the most abundant animals because of their ability to adapt to the drier climate of the Mesozoic Era.
14 Mesozoic Era Dinosaurs were also very active in this era. First small dinosaurs appeared in the Triassic Period. Larger and more abundant dinosaurs appeared in the Jurassic Period. Small mammals and birds also appeared during this era.
15 Mesozoic Era Divided into 3 periods: Triassic period - Turtles and crocodiles evolve and dinosaurs appear. Jurassic period - Large dinosaurs roam the world. First mammals and birds appear. Cretaceous period - Flowering plants appear, mammals become more common, dinosaurs become extinct.
16 Mesozoic Mammals
17 Mesozoic Reptiles
18 End of the Mesozoic Era This era ended with a mass extinction event about 65 million years ago. Many groups of animals, including the dinosaurs disappeared suddenly at this time. Many scientists believe that this event was caused by a comet or asteroid colliding with the Earth.
19
20 Cenozoic Era Recent Life Began about 65 million years ago and continues today!!!!! Climate was warm and mild. Marine animals evolved. Mammals began to increase and evolve adaptations that allowed them to live in many different environments land, air and the sea. This era is sometimes called the Age of Mammals
21 Cenozoic Era Divided into 2 periods: Tertiary period - First primates appear and become the most common. Quaternary period - Humans evolve and large mammals like woolly mammoths become extinct.
22 Today Today we are in the Holocene Epoch of the Quaternary Period of the Cenozoic Era. Which unit is the largest? Which unit is the smallest?
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
More informationFossils & 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
More informationSpring th Grade
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
More informationUse Target Reading Skills
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
More informationModule 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
More informationHow 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
More informationEras 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
More informationScience 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
More informationWarm 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
More informationGeological 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
More informationThe 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
More information2 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
More informationGeologic 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
More informationNotes 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
More information17-1 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
More information17-1 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
More informationPage 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
More informationDirected 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
More informationLinks 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
More informationGeological 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
More information5 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
More informationUNDERSTANDING GEOLOGIC TIME
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
More informationBiology. 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
More informationHistory 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
More informationEARTH 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
More informationThe 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,
More informationMesozoic Era 251 m.y.a 65.5 m.y.a
Mesozoic Cenozoic notes.notebook Mesozoic & Cenozoic 251 m.y.a Present at the end of the Permian, 90% of marine organisms and more than 70% of land organisms died. because resources and space were readily
More informationChapter 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?
More informationSection 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
More informationEarth 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
More informationGeologic 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
More informationAge 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
More informationSection 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
More informationGeologic 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
More informationEarth 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
More informationName 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
More informationThe History of Life. Before You Read. Read to Learn
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.
More informationThe 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
More informationAbsolute 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
More informationThe History of Life on Earth
8 The History of Life on Earth lesson 1 Geologic Time and Mass Extinctions Grade Seven Science Content Standard. 4.b. Students know the history of life on Earth has been disrupted by major catastrophic
More informationClues 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
More informationTIME 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
More informationFossils. 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
More informationGEOLOGY 12 CHAPTER 8 WS #3 GEOLOGIC TIME & THE FOSSIL RECORD
GEOLOGY 12 CHAPTER 8 WS #3 GEOLOGIC TIME & THE FOSSIL RECORD NAME Multiple Choice 1. Fossils are most commonly found in A. sedimentary rocks. B. metamorphic rocks. C. igneous rocks. D. all kinds of rocks.
More informationOutline. 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
More information4) 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
More informationChapter 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
More information1 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
More informationBeaming in your answers
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
More informationChapter 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
More informationLecture Outlines PowerPoint. Chapter 12 Earth Science 11e Tarbuck/Lutgens
Lecture Outlines PowerPoint Chapter 12 Earth Science 11e Tarbuck/Lutgens 2006 Pearson Prentice Hall This work is protected by United States copyright laws and is provided solely for the use of instructors
More informationEarth 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
More informationThe 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
More informationFossils 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
More informationGeologic 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,
More informationUnit 10 Lesson 2 What Was Ancient Earth Like? Copyright Houghton Mifflin Harcourt Publishing Company
How Rocks and Fossils Tell a Story Sedimentary rock forms in layers. Many sedimentary rocks contain fossils. The oldest rock layers are at the bottom, and the youngest rock layers are at the top. The relative
More informationFossils 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
More informationHistory of life on Earth Mass Extinctions.
History of life on Earth Mass Extinctions. Agenda or Summary Layout A summary of the topics discussed 1 2 3 4 Explanation of Mass extinctions The five major mass extinctions Two particular extinctions
More information2/5/17. #7 Geologic Time #7 Geologic Time
#7 #7 = all of time since Earth formed (4.6 billion years ago, b.y.a.). Geologists study rocks, fossils, geologic structures (faults, folds) to characterize Earth's history. Natural disasters involve present-day.
More informationHOW 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
More informationEarth 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.
More informationHistory 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
More informationGood 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
More informationTHE 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
More informationGeologic time. 8 th Grade
+ Geologic time 8 th Grade + Trilobites n Trilobites are small, hard-shelled animals that lived in ancient seas. Trilobites are considered to be index fossils. n Index fossils lived over vast regions of
More informationFossils, 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
More informationThe 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
More informationTopic 7: Historical Geology
Topic 7: Historical Geology (ES. 8 b, 9 a-e, 10 a-d, 12 a, b, e) ES.8 The student will investigate and understand geologic processes including plate tectonics. Key concepts include: b) processes (faulting,
More information3. 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
More informationUnit 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
More information(continued) Stephen Eikenberry 11 September 2012 AST 2037
Development of Life (continued) Stephen Eikenberry 11 September 2012 AST 2037 1 Evolutionary Timeline 530 MYa first footprint fossil found on land 505 Mya first true fish in the sea 475 MYa first land
More informationGeologic 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
More informationStation 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
More informationUnit 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
More informationEarth s Evolution Through Time
1 2 3 4 5 6 7 8 9 10 11 12 13 14 Earth s Evolution Through Time Earth 9 th edition Chapter 22 Earth s evolution: summary in haiku form Super-continents have come and gone many times: giant bumper cars.
More informationThe geologic time scale is a system we use to measure and describe the history of Earth. The time scale is used to: Measure how long Earth has
The geologic time scale is a system we use to measure and describe the history of Earth. The time scale is used to: Measure how long Earth has existed Describe how Earth has developed and changed Recognize
More informationStudy Guide. Section 1: Fossil Evidence of Change CHAPTER 14
Name Date Class Study Guide CHAPTER 14 Section 1: Fossil Evidence of Change In your textbook, read about Earth s early history. For each statement below, write true or false. 1. Solid Earth formed about
More informationFOSSILS Uncovering Clues to the Earth s Past
FOSSILS Uncovering Clues to the Earth s Past Fossils form when water replaces the cells of dead animals or plants with minerals. These minerals then petrify into rock to form the fossils we see in museums.
More informationGeological Time Line Time hierarchy. Geological Time Line 1/27/2019
Chapter 3 What the rocks say: how geology and paleontology reveal the history of life Geological Time Line Time hierarchy Eons Eras Periods Epochs Stages The Geologic Time Line - see handouts Geological
More informationEarth s Formation: 4.6 Billion Years ago
Earth s Formation: 4.6 Billion Years ago Formed from interstellar gas & dust into molten planet Earth s early atmosphere was hostile, made of carbon monoxide, methane, ammonia, nitrogen, nitrogen, sulfur,
More informationChapter Introduction. Chapter Wrap-Up. Explosion
Chapter Introduction Lesson 1 Lesson 2 Lesson 3 Chapter Wrap-Up Geologic Time Ancient Earth The Cambrian Explosion How have natural events changed Earth over time? What do you think? Before you begin,
More informationA Trip Through Geologic Time
Date Class _ A Trip Through Geologic Time Chapter Test A Multiple Choice Write the letter of the correct answer on the line at the left. 1. Late in the Paleozoic Era, the supercontinent Pangaea formed.
More informationThe 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
More informationCHAPTER 19 THE HISTORY OF LIFE. Dr. Bertolotti
CHAPTER 19 THE HISTORY OF LIFE Dr. Bertolotti Essential Question: HOW DO FOSSILS HELP BIOLOGISTS UNDERSTAND THE HISTORY OF LIFE ON EARTH? WHAT DO FOSSILS REVEAL ABOUT ANCIENT LIFE? FOSSILS AND ANCIENT
More informationGeologic Time. Geologic History and the Evolution of Life
Geologic Time Geologic History and the Evolution of Life 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
More informationEarth - 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
More informationOrigins 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
More informationTimeline that organizes the events in Earths history. Earth is about 4.7 billion years old. More complex organism such as land plants and fish
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 with in the last 500 million years. Humans evolved
More informationUnit 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
More informationBio94 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:
More informationHISTORICAL 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
More informationThe 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
More informationName 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,
More informationA brief history of the Earth!
A brief history of the Earth! The Geologic Time Scale Age of the Earth Hadean Eon Hadean Eon (4.57-3.85 Gyrs) Hell on Earth: 4.527 Gyrs formation of Moon 4.5 Gyrs - magma ocean, differentiation of core,
More informationUnit 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)
More informationI. 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:
More informationEvolution 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
More informationChapter 5 Evolution of Biodiversity. Monday, May 16, 16
Chapter 5 Evolution of Biodiversity Earth is home to a tremendous diversity of species Ecosystem diversity- the variety of ecosystems within a given region. Species diversity- the variety of species in
More informationThe 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
More information12.1. KEY CONCEPT Fossils are a record of life that existed in the past. 68 Reinforcement Unit 4 Resource Book
12.1 THE FOSSIL RECORD KEY CONCEPT Fossils are a record of life that existed in the past. Fossils can form in several different ways: Permineralization occurs when water surrounds a hard structure such
More information