Dinosaur Extinction Theories. Student Packet

Size: px
Start display at page:

Download "Dinosaur Extinction Theories. Student Packet"

Transcription

1 Dinosaur Extinction Theories Student Packet 1

2 Dinosaur Extinction Theories Introduction Why did the dinosaurs become extinct? What happened over 65 million years ago to kill a species that had survived for 150 million years? The answer is that no one knows for sure, but everyone seems to have their own favorite theory. Whatever caused the death of the dinosaurs also caused the death of about 70% of all of the species on the Earth. Now we'll introduce just a few of the popular theories dealing with the dinosaur extinction at the end of the Cretaceous Period. Why did the dinosaurs become extinct? What I know about the extinction of dinosaurs is: 1) 2) 3) What I want to know about the extinction of dinosaurs is: 1) 2) 3) Example Quote: Whatever caused the death of the dinosaurs also caused the death of about 70% of all of the species on the Earth. Example Note: As I read about 70% of all species dinosaurs, plants, and animals, I began to wonder what extreme event could take place to destroy the majority of the species on planet earth. I wonder could this happen again? 2

3 Asteroid Impact Asteroids very seldom pass through the earth's atmosphere, but when they do they cause mass destruction. One of the most common extinction theories is that an asteroid 4-9 miles (10 km) wide struck the earth on the tip of the Yucatan Peninsula, in the Gulf of Mexico dealing the dinosaurs a fatal blow. Upon striking, the comet would have sent dust and steam into the atmosphere and caused huge forest fires, tidal waves, severe storms, and eliminated all sunlight. It would be six months before sunlight would reach the ground after such a blow. The dinosaurs, even in their prime, stood no chance without sunlight and plant life. 3

4 Climate Change The climate of the Cretaceous period was tropical. Scientists know this because nearly one half of the plants in this time were tropical plants. Many scientists believe that at the end of the Cretaceous period the temperature dropped. If this drop in temperature is correct, many of the plants that the plant eating dinosaurs ate would die and thus many of the plant eaters would die as well. If the plant eaters died there would be nothing for the meat eaters to eat and they would eventually die out also. Plankton also seemed to decrease in number during the Tertiary period which could explain the death of the marine dinosaurs that fed on them. This popular theory just possibly could have caused the dinosaurs demise. 4

5 Volcanic Eruptions Could numerous volcanic eruptions have caused such mass destruction? Possibly. When volcanos erupt, they send huge clouds of dust, sulfuric acid, and poisonous gases into the air making the air almost impossible to breath. The dust and ash in the atmosphere would also change the climate and sunlight levels. On top of that, the ground would be covered with layers and layers of molten rock. The dinosaurs would never have survived such a hostile, poisoned environment! 5

6 Disease Disease has also been proposed as the killer of the dinosaurs. As the Cretaceous period went on, more and more land bridges started to appear on the earth. The oceans started to dry up and the dinosaurs were able to walk across the land that was there. As the dinosaurs searched for food they would walk across these new land bridges and find relatives of theirs from when the lands of the world were one. But land bridges brought more than dinosaurs looking for food into the new land. They brought all of the diseases that those dinosaurs had inside of them. The diseases did not hurt those dinosaurs because they were immune to them, but to the other dinosaurs they could be fatal and the other way around. In most cases disease in a species is not fatal and is a positive thing because it will wipe out the weak so only the strong survive to pass their genes on to the next generation, but in the dinosaurs case it might not have been that way. 6

7 Dinosaur Stress Stress on the dinosaurs is a possible solution for their extinction. This theory was first thought up by Heinrch K. Erben when he found that the shell thickness of a certain type of dinosaur species decreased as time went on. It was thought that the warm climate and good habitats in the Cretaceous period could have caused over population of dinosaurs, thus an increase of stress on the dinosaurs would develop. Stress is known to cause hormonal imbalances in modern day birds and lizards, so this could have happened to female dinosaurs. An increase of estrogen in the dinosaurs would have caused the females to lay eggs with shells too thin. If this happened it would greatly reduce the chances of the young to be hatched and live to adult hood. 7

8 Ozone Layer Depletion The destruction of the earth's ozone layer is another proposal for the dinosaurs extinction. Hydrochloric acid from volcanic explosions (which are known to be numerous in the Cretaceous period) could have depleted the earth's ozone layer to a great extent. With the absence of this layer there would be nothing to protect the dinosaurs from the ultra violent rays of the sun. This could also explain why the dinosaurs and not the mammals seemed to die out because dinosaurs had no hair to protect them from the suns rays like the mammals of that time did. 8

9 Greenhouse Effect The "greenhouse effect" is another possible solution to the dinosaurs demise. Massive volcanic eruptions could have released so much carbon dioxide into the atmosphere that it caused a drastic increase in the world wide temperature. Some deep sea drills have shown that the temperature of the ocean increased 65 million years ago so the temperature of the atmosphere also likely increased. The excess carbon dioxide from the eruptions in the atmosphere would have permitted the sun's heat into the earth's atmosphere, but would have blocked most of the heat from exiting the earth's surface back into space. This would have created a "greenhouse effect", the increase in temperature could have killed the tiny plankton responsible for converting most of the earth's carbon dioxide into oxygen which would further compound the problem. Only a few degrees increase in the temperature can affect the animal to reproduce. 9

10 Supernova Could a supernova have been responsible for the death of the dinosaurs? A supernova is an exploding star. It can blast material huge distances into space. Some scientists think cosmic radiation caused by the explosion would cause extremely high rates of deadly cancer among the dinosaurs. Others believe the radiation reacted with the Earth's atmosphere and destroyed the ozone layer. Without the ozone layer to filter out dangerous radiation, once again high rates of cancer could have occurred within the dinosaurs. Only small animals and plants, whose homes were sheltered from the harmful radiation would have survived. 10

11 Caterpillars Caterpillars which were believed to have evolved late in the Cretaceous period could have stripped plants of their leaves, a valuable food to the plant eating dinosaurs. If the caterpillars were able to strip all of the leaves from trees, then the plant eaters would not have anything to eat and would die. If the plant eaters died then the meat eaters would die from lack of food. Beware, this theory is thought to be extremely unlikely for caterpillars would have to strip all of the trees around the world of their leaves at virtually the same time. 11

12 Other Theories The climate became too dry, making the environment too arid for the dinosaurs. Multi-layer egg shells formed, with two or three shells on individual eggs, suffocating the embryos. There is evidence that many of the large dinosaurs, must have had very small brains compared to their body size. With such small brain capacity responses to the surrounding environment would have been so slow that they could not compete with faster thinking animals. Mass flooding destroyed important dinosaur habitats. Dinosaur overpopulation could have resulted in severe competition and rivalry. Mammals ate the dinosaur eggs preventing new generations surviving. Carnivores over-killed their prey, and had nothing to eat. Uranium leaked from the soil causing poisoning to the dinosaurs. High levels of carbon dioxide destroyed the dinosaur embryos 12

13 Paragraph Planning Guide What I Learned (Title) (Topic Sentence) (Key/Star Idea) (Explain) (Explain) (Key/Star Idea) (Explain) (Explain) (Key/Star Idea) (Explain) (Explain) (Conclusion) 13

14 Asteroid Impact Theory Directions: While watching the video, identify and list facts that occurred during and after the impact of the asteroid that hit approximately 65 million years ago in the Chicxulub region of Mexico s Yucatan Peninsula. Time Frame Instantly (1/2 Second) Minutes 8-10 Hours 1-2 Hour 5 14

15 Hours 7-8 Month (40 days) 15

16 The Last Days of The Dinosaur Choose one dinosaur to research: Tyrannosaurs Rex Hadrodon Iguanadon Spinosaur Triceratop Pterosaur The dinosaur I choose to research was. I chose this dinosaur because. In my research, I will find out: 1) What it looked like, 2) What was its diet, 3) Where it lived, and 4) any other information that would be interesting to my reader. Research What did it look like? 1. What was its diet? Where did it live? Interesting Information Source: Author. Date. Title. Website link. Picture or Illustration 16

17 The Last Days of My Dinosaur: The dinosaur I choose to research was. My dinosaur looked like,, and. It ate. It found its food by. It lived in. Other interesting information I found about my dinosaur was,, and. Mapping: Make an X to identify where your dinosaur lived. Make an O at the impact zone of the asteroid occurred. Creative Writing: Describe the life and characteristics of your dinosaur prior to its death. You will need to complete at least ten events your dinosaur experienced (e.g. diet, predators, habits, etc.) Hour Event 17

18 Hour Event 18

5 EXTINCTION LEVEL EVENTS 730L

5 EXTINCTION LEVEL EVENTS 730L 5 EXTINCTION LEVEL EVENTS 730L EXTINCTION LEVEL EVENTS By Cynthia Stokes Brown, adapted by Newsela Life on Earth has seen several periods when a large portion of its species died off. Yet, life on our

More information

5 EXTINCTION LEVEL EVENTS 850L

5 EXTINCTION LEVEL EVENTS 850L 5 EXTINCTION LEVEL EVENTS 850L EXTINCTION LEVEL EVENTS By Cynthia Stokes Brown, adapted by Newsela Life on Earth has seen several periods when a large portion of its species died off. Yet, they ve always

More information

Commensalism is a symbiotic relationship in which one organism benefits and the other organism is not affected.. What they might ask:

Commensalism is a symbiotic relationship in which one organism benefits and the other organism is not affected.. What they might ask: B-6.1 Explain how the interrelationships among organisms (including predation, competition, parasitism, mutualism, and commensalism) generate stability within ecosystems. ecosystem - biotic community (all

More information

Life History. Precambrian Time 4.6 BYA MYA 7/24/2009

Life History. Precambrian Time 4.6 BYA MYA 7/24/2009 Life History Scientists have developed a model of the history of life on Earth called the geologic time scale. Significant developments and extinctions of plant and animal life can be explained on the

More information

Name Date Class. Geologic Time. The largest division of the geologic time scale is the. the most recent of which is the. which is divided into three

Name Date Class. Geologic Time. The largest division of the geologic time scale is the. the most recent of which is the. which is divided into three Chapter Content Mastery Geologic Time LESSON 1 Directions: Use the following terms to complete the concept map below. Cenozoic eon eras Mesozoic Paleozoic Phanerozoic The largest division of the geologic

More information

From the Beginning. Data, evidence theories and explanations Organisms and health Environment, Earth and universe

From the Beginning. Data, evidence theories and explanations Organisms and health Environment, Earth and universe You are a geologist. You have been asked to prepare a short presentation. It will be about finding evidence for the origin of the Earth and the evolution of life on it. Explore and Discover... Teacher

More information

8.11C Explore how short and long term environmental changes affect organisms and traits in subsequent populations

8.11C Explore how short and long term environmental changes affect organisms and traits in subsequent populations 8.11C Explore how short and long term environmental changes affect organisms and traits in subsequent populations Watch and Think https://www.youtube.com/embed/ysa5obhxz- Q?feature=player_embedded What

More information

Timeline (Triassic-Jurassic-Cretaceous)

Timeline (Triassic-Jurassic-Cretaceous) Timeline (Triassic-Jurassic-Cretaceous) Dinosaurs existed long ago during the Mesozoic ( middle life ) era. This was between the Palaeozoic ( old life ) era and the Cenozoic ( new life ) era. We are still

More information

Earth Systems. Overview of Earth s Spheres. The Earth consists of four 'spheres' which pertain to the Earth's major reservoirs of matter and energy.

Earth Systems. Overview of Earth s Spheres. The Earth consists of four 'spheres' which pertain to the Earth's major reservoirs of matter and energy. Earth Systems Overview of Earth s Spheres The Earth consists of four 'spheres' which pertain to the Earth's major reservoirs of matter and energy. LITHOSPHERE: The solid, rocky shell of the Earth is the

More information

Dinosaurs EXPLORE THEIR MYSTERIES

Dinosaurs EXPLORE THEIR MYSTERIES Dinosaurs EXPLORE THEIR MYSTERIES Dinosaurs are among the most mysterious and captivating animals ever to live on Earth. Experience the ways our scientists have assembled answers to many fascinating questions

More information

AGUSTINIANO CIUDAD SALITRE SCHOOL WORKSHOP TO REVIEW FOURTH TERM TOPICS SIXTH GRADE

AGUSTINIANO CIUDAD SALITRE SCHOOL WORKSHOP TO REVIEW FOURTH TERM TOPICS SIXTH GRADE AGUSTINIANO CIUDAD SALITRE SCHOOL WORKSHOP TO REVIEW FOURTH TERM TOPICS SIXTH GRADE In this workshop we will review the topics (tag questions, second conditional and the vocabulary of units 8 and 9. READING

More information

HOLT ENVIRONMENTAL SCIENCE HOW ECOSYSTEMS WORK

HOLT ENVIRONMENTAL SCIENCE HOW ECOSYSTEMS WORK HOLT ENVIRONMENTAL SCIENCE CHAPTER 05 HOW ECOSYSTEMS WORK I. Energy Flow in Ecosystems List two examples of ecological succession. Explain how a pioneer species contributes to ecological succession. Explain

More information

Unit 9.2: The Evolution of Multicellular Life

Unit 9.2: The Evolution of Multicellular Life Unit 9.2: The Evolution of Multicellular Life Lesson Objectives Describe important events of the late Precambrian. Give an overview of evolution during the Paleozoic Era. Explain why the Mesozoic Era is

More information

Matter and Energy in Ecosystems

Matter and Energy in Ecosystems Matter and Energy in Ecosystems The interactions that take place among biotic and abiotic factors lead to transfers of energy and matter. Every species has a particular role, or niche, in an ecosystem.

More information

Fertile Soils: Volcanic soils are very fertile. These rich soils are called laterite soils and are rich in minerals. They are common in many

Fertile Soils: Volcanic soils are very fertile. These rich soils are called laterite soils and are rich in minerals. They are common in many By Sam McCormack Fertile Soils: Volcanic soils are very fertile. These rich soils are called laterite soils and are rich in minerals. They are common in many countries such as Brazil, where coffee is grown,

More information

2 Eras of the Geologic Time Scale

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

More information

Geological Timeline. Important EvEnts In the Earth s history

Geological Timeline. Important EvEnts In the Earth s history Geological Timeline In this pack you will find information and activities to help your class grasp the concept of geological time, just how old our planet is, and just how young we, as a species, are.

More information

How did a meteor impact affect life. on Earth? Perform the Task. You will read: You will write: A Science Article. An Informative Essay

How did a meteor impact affect life. on Earth? Perform the Task. You will read: You will write: A Science Article. An Informative Essay Perform the Task How did a meteor impact affect life on Earth? Houghton Mifflin Harcourt Publishing Company Image Credits: fongfong/shutterstock You will read: A Science Article It Came from Outer Space

More information

Natural Resources. Air and Water Resources

Natural Resources. Air and Water Resources Natural Resources Key Concepts Why is it important to manage air and water resources wisely? How can individuals help manage air and water resources wisely? Air and Water Resources What do you think? Read

More information

Third Grade Science Vocabulary Investigation Design & Safety

Third Grade Science Vocabulary Investigation Design & Safety recycle dispose reuse goggles data conclusion predict describe observe record identify investigate evidence analyze mass matter float sink attract force magnet magnetic magnetism pole pull push repel Third

More information

National 5. Unit 3. Life on earth. Ink exercise 1. Biodiversity and the distribution of life.

National 5. Unit 3. Life on earth. Ink exercise 1. Biodiversity and the distribution of life. National 5 Unit 3 Life on earth Ink exercise 1 Biodiversity and the distribution of life. Once completed and marked- Think about and list below the areas I need to work on: Multiple choice Tick one answer

More information

Mr. and Mrs. Clatter have five children. Half of them are boys. How is this possible?

Mr. and Mrs. Clatter have five children. Half of them are boys. How is this possible? Warm Up "A black dog stands in the middle of an intersection in a town painted black. None of the street lights are working due to a power failure caused by a local storm. A car with two broken headlights

More information

The Geologic Time Scale

The Geologic Time Scale The Geologic Time Scale Months, years, or even centuries aren't very helpful for thinking about Earth's long history. Because the time span of Earth's past is so great, geologists use the geologic time

More information

Thickness of the Atmosphere. Composition of the Atmosphere (inside the DRY homosphere) Permanent and Variable Gases

Thickness of the Atmosphere. Composition of the Atmosphere (inside the DRY homosphere) Permanent and Variable Gases Chapter 1: Composition and Structure of the Atmosphere Composition Evolution Vertical Structure Thickness of the Atmosphere (from Meteorology Today) 90% 70% Most of the atmospheric mass is confined in

More information

reflect extinct: describes a species that has completely died out

reflect extinct: describes a species that has completely died out reflect For hundreds of millions of years, dinosaurs roamed the planet. Some weighed up to 80 tons. Some were taller than a 6-story building. Then, starting about 65 million years ago, the dinosaurs went

More information

Ecosystems and Communities

Ecosystems and Communities Ecosystems and Communities Interdependence in Nature Q: How do abiotic and biotic factors shape ecosystems? 4.1 What factors affect global climate? WHAT I KNOW SAMPLE ANSWER: The global climate is affected

More information

Press Release or News Article: What s the Difference? Lesson

Press Release or News Article: What s the Difference? Lesson Press Release or News Article: What s the Difference? Lesson In this lesson, students examine the differences between a press release and a science news article and consider the importance of distinguishing

More information

Reading 9.1 Mass Extinction (text adapted from text from

Reading 9.1 Mass Extinction (text adapted from text from Reading 9.1 Mass Extinction (text adapted from text from http://en.wikipedia.org/wiki/extinction) Do you think any species gone extinct while you have been alive? How about over the past 100 years? Extinctions

More information

Summary Booklet Topic 8 Weather Patterns

Summary Booklet Topic 8 Weather Patterns Kingdom Schools Science Department Grade 5- Term 2 Name: Date: Section: Summary Booklet Topic 8 Weather Patterns Lesson 1 :How does Air move? Skill 8-1: Understand that air pressure is related to altitude,

More information

autotroph Encyclopedic Entry producer

autotroph Encyclopedic Entry producer This website would like to remind you: Your browser (Safari 7) is out of date. Update your browser for more security, comfort and the best experience on this site. Encyclopedic Entry autotroph producer

More information

Volcanoes and Earthquakes. Part 1: Volcanoes

Volcanoes and Earthquakes. Part 1: Volcanoes Volcanoes and Earthquakes Part 1: Volcanoes Introduction Earth s crust is made of cool, solid rock. Yet, most of Earth is made of extremely hot rock in the mantle and liquid metal in the core. Sometimes,

More information

Ecology: An Explanation

Ecology: An Explanation Ecology: An Explanation Define Ecology - study of the interactions that take place among Biosphere - part of Earth that supports life, including the top portion of Earth's crust, the atmosphere, and all

More information

Lesson Overview. Biodiversity. Lesson Overview. 6.3 Biodiversity

Lesson Overview. Biodiversity. Lesson Overview. 6.3 Biodiversity Lesson Overview 6.3 6.3 Objectives Define biodiversity and explain its value. Identify current threats to biodiversity. Describe how biodiversity can be preserved. THINK ABOUT IT From multicolored coral

More information

B2 6 Old and New Species

B2 6 Old and New Species B2 6 Old and New Species 62 minutes 62 marks Page of 22 Q. Fossils give us evidence for the theory of evolution. The diagrams show how a fish became a fossil. (a) In the sentences below, cross out the

More information

Big Idea: The types and characteristics of organisms change over time.

Big Idea: The types and characteristics of organisms change over time. Big Idea: The types and characteristics of organisms change over time. Unit 1 Lesson 4 The History of Life on Earth Essential Question: How has life on Earth changed over time? Copyright Houghton Mifflin

More information

Kindergarten Science Units Life Science Plants and Animals

Kindergarten Science Units Life Science Plants and Animals Kindergarten Science Units Life Science Plants and Animals How do certain characteristics of plants and animals help them to survive? How do plants and animals change during their life cycles? How are

More information

Food Chains and Food Webs

Food Chains and Food Webs Program Support Notes by: Spiro Liacos B.Ed. Produced by: VEA Pty Ltd Commissioning Editor: Sandra Frerichs B.Ed, M.Ed. Executive Producers: Edwina Baden-Powell B.A, CVP. Sandra Frerichs B.Ed, M.Ed. You

More information

ENVIRONMENTAL INTERACTIONS AND EFFECTS

ENVIRONMENTAL INTERACTIONS AND EFFECTS reflect Try opening a jar, turning a doorknob, or writing a sentence without using your thumb. All of a sudden, it is not easy to do these simple tasks. The thumb is one of the most important parts of

More information

The Virtual Woodland Worksheet

The Virtual Woodland Worksheet Food Chains All living things need food to give them energy to move and grow. A food chain can show us how living things get their food by showing us what feeds on what in a particular habitat. Food chains

More information

Rainforest Concern Module 2 Why do we need rainforests?

Rainforest Concern Module 2 Why do we need rainforests? Rainforest Concern Module 2 Why do we need rainforests? Rainforest Concern Module 2: Why do we need Rainforest? Before we go any further, there are some words you may not understand, and these words and

More information

Worksheet A Environmental Problems

Worksheet A Environmental Problems Worksheet A Environmental Problems Vocabulary Can you talk about Environmental issues in English? With a partner, try to explain the terms in the diagram below. Why are the words divided into two groups

More information

Ecosystems and Communities practice test

Ecosystems and Communities practice test Name: answers Score: 0 / 37 (0%) [14 subjective questions not graded] Ecosystems and Communities practice test Multiple Choice Identify the letter of the choice that best completes the statement or answers

More information

Unit 2 Lesson 4 The Geologic Time Scale. Copyright Houghton Mifflin Harcourt Publishing Company

Unit 2 Lesson 4 The Geologic Time Scale. Copyright Houghton Mifflin Harcourt Publishing Company Once Upon a Time How have geologists described the rate of geologic change? Geology is the scientific study of the origin, history, and structure of Earth and the processes that shape it. Early geologists

More information

Chapter 9 Asteroids, Comets, and Dwarf Planets. Their Nature, Orbits, and Impacts

Chapter 9 Asteroids, Comets, and Dwarf Planets. Their Nature, Orbits, and Impacts Chapter 9 Asteroids, Comets, and Dwarf Planets Their Nature, Orbits, and Impacts Asteroid Facts Asteroids are rocky leftovers of planet formation. The largest is Ceres, diameter ~1,000 km. There are 150,000

More information

The Keys to Survival for Birds During the Cretaceous-Tertiary Extinction

The Keys to Survival for Birds During the Cretaceous-Tertiary Extinction Ben Lloyd 3/31/16 The Keys to Survival for Birds During the Cretaceous-Tertiary Extinction Sixty-six million years ago, a sixmile-wide asteroid slammed into the earths crust at a site that is now at the

More information

How Ecosystems Work: Energy Flow and Nutrient Cycles. Multiple Choice Test

How Ecosystems Work: Energy Flow and Nutrient Cycles. Multiple Choice Test How Ecosystems Work: Energy Flow and Nutrient Cycles Multiple Choice Test 1. The flow of solar energy through an ecosystem is marked by a) plants converting light energy to chemical energy via photosynthesis

More information

3 Types of Interactions

3 Types of Interactions CHAPTER 1 3 Types of Interactions SECTION Interactions of Living Things BEFORE YOU READ After you read this section, you should be able to answer these questions: What determines an area s carrying capacity?

More information

Ecosystems and Food Webs

Ecosystems and Food Webs Ecosystems and Food Webs How do AIS affect our lakes? Background Information All things on the planet both living and nonliving interact. An Ecosystem is defined as the set of elements, living and nonliving,

More information

3 The Mesozoic and Cenozoic Eras

3 The Mesozoic and Cenozoic Eras CHAPTER 9 3 The Mesozoic and Cenozoic Eras SECTION A View of Earth s Past KEY IDEAS As you read this section, keep these questions in mind: What were the periods of the Mesozoic and Cenozoic Eras? What

More information

Lesson 4.13: Life Science Ecosystems 1

Lesson 4.13: Life Science Ecosystems 1 Weekly Focus: Reading Comprehension Weekly Skill: Finding Evidence from Passage Lesson Summary: This week students will read two different passages with information on ecosystems. The first passage includes

More information

How Wolves and their Prey are Affected By Climate Change

How Wolves and their Prey are Affected By Climate Change How Wolves and their Prey are Affected By Climate Change Hannah Gajewski BIO 171 Animal Biology Lab 4 December 1, 2014 Climate Change has been happening for a considerably long time before it was actually

More information

The Earth, Sun, and Moon

The Earth, Sun, and Moon reflect The Sun and Moon are Earth s constant companions. We bask in the Sun s heat and light. It provides Earth s energy, and life could not exist without it. We rely on the Moon to light dark nights.

More information

It is a pleasure to welcome you to the 2015 Montessori Model United Nations Conference. Montessori Model United Nations. All rights reserved.

It is a pleasure to welcome you to the 2015 Montessori Model United Nations Conference. Montessori Model United Nations. All rights reserved. Dear Delegates, It is a pleasure to welcome you to the 2015 Montessori Model United Nations Conference. The following pages intend to guide you in the research of the topics that will be debated at MMUN

More information

FACTS ABOUT CLIMATE CHANGE

FACTS ABOUT CLIMATE CHANGE FACTS ABOUT CLIMATE CHANGE 1. What is climate change? Climate change is a long-term shift in the climate of a specific location, region or planet. The shift is measured by changes in features associated

More information

IF IT'S NOT IN USE, TURN OFF THE JUICE SAVE WILDLIFE

IF IT'S NOT IN USE, TURN OFF THE JUICE SAVE WILDLIFE IF IT'S NOT IN USE, TURN OFF THE JUICE SAVE WILDLIFE The 3 rd, 4th and 5 th grade Gifted Classes at Wycallis Elementary School are working on a service learning project in conjunction with the Philadelphia

More information

Worksheet: Mass extinctions and fossils

Worksheet: Mass extinctions and fossils Worksheet: Mass extinctions and fossils FET Phase Grade 10 Learning area: Life Sciences Strand: Diversity, change and continuity Theme: History of life on Earth Specific Aim 1: Acquiring knowledge of natural

More information

Teacher Workbooks. Science and Nature Series Cloze Paragraphs Natural Disasters Theme, Vol. 1

Teacher Workbooks. Science and Nature Series Cloze Paragraphs Natural Disasters Theme, Vol. 1 Teacher Workbooks Science and Nature Series Cloze Paragraphs Natural Disasters Theme, Vol. 1 Copyright 2005 Teachnology Publishing Company A Division of Teachnology, Inc. For additional information, visit

More information

California Standards Grades 9 12 Boardworks 2009 Science Contents Standards Mapping

California Standards Grades 9 12 Boardworks 2009 Science Contents Standards Mapping California Standards Grades 912 Boardworks 2009 Science Contents Standards Mapping Earth Sciences Earth s Place in the Universe 1. Astronomy and planetary exploration reveal the solar system s structure,

More information

Geography Chapter 2 A Living Planet

Geography Chapter 2 A Living Planet Geography Chapter 2 A Living Planet The Earth Inside and Out pp.27 47 Bodies of Water and Land Forms pp. 32-36 Internal Forces Shaping the Earth pp.37-41 External Forces Shaping the Earth pp. 42-45 1.

More information

Language Arts Standard 8: Use listening and speaking strategies for different purposes.

Language Arts Standard 8: Use listening and speaking strategies for different purposes. Page1 Title: The Great Kapok Tree Time 60 70 Minutes Subjects: Science, Social Studies, Language Arts Objectives Listen to gain knowledge and share information and perform a task (relating to problems

More information

The Earth System. The geosphere is the solid Earth that includes the continental and oceanic crust as well as the various layers of Earth s interior.

The Earth System. The geosphere is the solid Earth that includes the continental and oceanic crust as well as the various layers of Earth s interior. The Earth System The atmosphere is the gaseous envelope that surrounds Earth. It consists of a mixture of gases composed primarily of nitrogen, oxygen, carbon dioxide, and water vapor. The atmosphere and

More information

Name: Period: Watch the pizza debate video and answer the analysis questions. Watch the Bill Nye debate video and answer the analysis questions.

Name: Period: Watch the pizza debate video and answer the analysis questions. Watch the Bill Nye debate video and answer the analysis questions. Global Warming Packet Component 8.2.4 Guiding Questions (questions you should be able to answer by the end of this packet before taking the test!) 1. Why is it important to clarify evidence? 2. What are

More information

Geologic Time Scale Notes

Geologic Time Scale Notes Name: Date: Period: 1 2 3 4 5 6 7 Notes Essential Question: What is the geologic time scale? Vocabulary: Geology: the scientific study of the origin, history, and structure of Earth and the processes that

More information

Food Chains and Food Webs

Food Chains and Food Webs Food Chains and Food Webs Food chains and food webs examine how the nutrients and energy contained in food is passed from organism to organism. Each living thing, whether it is a plant or animal, depends

More information

Earth Sciences -- Grades 9, 10, 11, and 12. California State Science Content Standards. Mobile Climate Science Labs

Earth Sciences -- Grades 9, 10, 11, and 12. California State Science Content Standards. Mobile Climate Science Labs Earth Sciences -- Grades 9, 10, 11, and 12 California State Science Content Standards Covered in: Hands-on science labs, demonstrations, & activities. Investigation and Experimentation. Lesson Plans. Presented

More information

CHARACTERISTICS OF THE SOLAR SYSTEM

CHARACTERISTICS OF THE SOLAR SYSTEM reflect Our solar system is made up of thousands of objects, at the center of which is a star, the Sun. The objects beyond the Sun include 8 planets, at least 5 dwarf planets, and more than 170 moons.

More information

2. Fill in the blank. The of a cell is like a leader, directing and telling the different parts of the cell what to do.

2. Fill in the blank. The of a cell is like a leader, directing and telling the different parts of the cell what to do. 1. Plant and animal cells have some similarities as well as differences. What is one thing that plant and animal cells have in common? A. cell wall B. chlorophyll C. nucleus D. chloroplasts 2. Fill in

More information

THIRD GRADE HAZARDS 1 WEEK LESSON PLANS AND ACTIVITIES

THIRD GRADE HAZARDS 1 WEEK LESSON PLANS AND ACTIVITIES THIRD GRADE HAZARDS 1 WEEK LESSON PLANS AND ACTIVITIES PLATE TECTONIC CYCLE OVERVIEW OF THIRD GRADE VOLCANOES WEEK 1. PRE: Explaining why there are many types of volcanic rocks. LAB: Comparing rocks from

More information

Resources. Water: Humans cannot survive without fresh water. The fresh water we use is replaced by the water cycle. Water is also a source of energy.

Resources. Water: Humans cannot survive without fresh water. The fresh water we use is replaced by the water cycle. Water is also a source of energy. Resources You use Earth s resources every day. When you eat cereal with milk for breakfast you use resources from plants and from animals. When you ride the bus to school you use fuel resources. When you

More information

A: Planets. Q: Which of the following objects would NOT be described as a small body: asteroids, meteoroids, comets, planets?

A: Planets. Q: Which of the following objects would NOT be described as a small body: asteroids, meteoroids, comets, planets? Q: Which of the following objects would NOT be described as a small body: asteroids, meteoroids, comets, planets? A: Planets Q: What can we learn by studying small bodies of the solar system? A: We can

More information

THE MAGIC OF ENERGY Study Guide

THE MAGIC OF ENERGY Study Guide THE MAGIC OF ENERGY Study Guide Energy: The ability to do work Energy makes everything happen and can be divided into two types: Stored energy is called potential energy. Moving energy is called kinetic

More information

Key Idea 2: Ecosystems

Key Idea 2: Ecosystems Key Idea 2: Ecosystems Ecosystems An ecosystem is a living community of plants and animals sharing an environment with non-living elements such as climate and soil. An example of a small scale ecosystem

More information

food chain Encyclopedic Entry

food chain Encyclopedic Entry This website would like to remind you: Your browser (Apple Safari 7) is out of date. Update your browser for more security, comfort and the best experience on this site. Encyclopedic Entry food chain For

More information

-most form when things die and are buried by sediments. -sediments slowly harden into rock and preserve the shapes or organisms

-most form when things die and are buried by sediments. -sediments slowly harden into rock and preserve the shapes or organisms Fossils -preserved remains or traces of living things -most form when things die and are buried by sediments -sediments slowly harden into rock and preserve the shapes or organisms -found in sedimentary

More information

The Second Planet in Our Solar System. Venus. By Dorothy.Yang Lucy.Xiao

The Second Planet in Our Solar System. Venus. By Dorothy.Yang Lucy.Xiao The Second Planet in Our Solar System Venus By Dorothy.Yang Lucy.Xiao venus Basic information about Venus.length of year.length of day.temperature.density.chemical composition of the atmosphere.chemical

More information

Chapter 8 Biodiversity

Chapter 8 Biodiversity 8.1 Biodiversity at risk Chapter 8 Biodiversity It's likely that enough dust and ash were thrown into the atmosphere to block out much of the sunlight. The last dinosaurs died out about 65 millions years

More information

Extinction; Lecture-8

Extinction; Lecture-8 I. introduction Definition Current extinction Genetic drift Extinction; Lecture-8 II. 3 types of extinction 1. background 2. mass 3. stochastic III. 5 periods of mass IV. human caused 1. on land and in

More information

Chapter 6 Impacts of global warming

Chapter 6 Impacts of global warming Chapter 6 Impacts of global warming Introduction This chapter compromises a set of activities, which focus on the reasons for and the consequences of global warming and ways of preventing it. The activities

More information

READING COMPREHENSION I SIR ISAAC NEWTON

READING COMPREHENSION I SIR ISAAC NEWTON READING COMPREHENSION I SIR ISAAC NEWTON Sir Isaac Newton (1642-1727) was an English scientist who made great contributions to physics, optics, maths and astronomy. He is known for his Three Laws of Motion

More information

Right: Impact crater on Mercury (Caloris Basin). Credit: NASA/Messenger

Right: Impact crater on Mercury (Caloris Basin). Credit: NASA/Messenger Impact Craters Comets, asteroids and meteoroids are the debris left over from the formation of our Solar System. Once in a while, a piece of this debris will strike a planet, a moon or an asteroid at a

More information

Q1. The diagrams show fossil animals found in rocks of different ages. Scientists have used this information to work out how the modern horse evolved.

Q1. The diagrams show fossil animals found in rocks of different ages. Scientists have used this information to work out how the modern horse evolved. Q. The diagrams show fossil animals found in rocks of different ages. Scientists have used this information to work out how the modern horse evolved. (a) Mesohippus became extinct over thirty million years

More information

Journey through the rainforest

Journey through the rainforest Journey through the rainforest by Etruscan Primary School Contents What is a rainforest? Rainforests of the world Why are rainforests important? Rainforest wildlife This book was made by the pupils in

More information

The chemistry of air pollution

The chemistry of air pollution The chemistry of air pollution Contents Air is very important as it provides oxygen and other gases that are essential to all life on Earth. It consists of a mixture of invisible gases that surround the

More information

The atmosphere has a number of gases, often in tiny amounts, which trap the heat given out by the Earth.

The atmosphere has a number of gases, often in tiny amounts, which trap the heat given out by the Earth. The Earth is wrapped in a blanket of air called the atmosphere, which is made up of several layers of gases. The sun is much hotter than the Earth and it gives off rays of heat (radiation) that travel

More information

Unit 2 Lesson 4 Effects of Energy Transfer Essential Question: How does the use of energy resources affect the environment?

Unit 2 Lesson 4 Effects of Energy Transfer Essential Question: How does the use of energy resources affect the environment? Big Idea: Energy exists in different forms and can change form one form to another but energy is always conserved. Unit 2 Lesson 4 Effects of Energy Transfer Essential Question: How does the use of energy

More information

1 Everything Is Connected

1 Everything Is Connected CHAPTER 1 1 Everything Is Connected SECTION Interactions of Living Things BEFORE YOU READ After you read this section, you should be able to answer these questions: What do organisms in an ecosystem depend

More information

Volcanoes and volcanic eruptions

Volcanoes and volcanic eruptions Volcanoes and volcanic eruptions Volcanoes form when magma reaches the Earth's surface, causing eruptions of lava and ash. They occur at destructive (compressional) and constructive (tensional) plate boundaries.

More information

EARTH S ATMOSPHERE AND ITS SEASONS

EARTH S ATMOSPHERE AND ITS SEASONS EARTH S ATMOSPHERE AND ITS SEASONS Provided by Tasa Graphic Arts, Inc. for Earthʼs Atmosphere and Its Seasons CD-ROM http://www.tasagraphicarts.com/progeas.html 1.The Importance of Weather (wx) The U.S.

More information

THE SOLAR SYSTEM - EXERCISES 1

THE SOLAR SYSTEM - EXERCISES 1 THE SOLAR SYSTEM - EXERCISES 1 THE SUN AND THE SOLAR SYSTEM Name the planets in their order from the sun. 1 2 3 4 5 6 7 8 The asteroid belt is between and Which planet has the most moons? About how many?

More information

Dinosaur Time-line. What other animals lived then? How long ago did the dinosaurs live? Did dinosaurs live at the same time as people?

Dinosaur Time-line. What other animals lived then? How long ago did the dinosaurs live? Did dinosaurs live at the same time as people? Dinosaur Time-line How long ago did the dinosaurs live? The Age of Dinosaurs began nearly 250 million years ago, but the first true dinosaurs appeared closer to 220 million years ago. Some dinosaurs evolved

More information

environmental effects

environmental effects environmental effects reflect How do you deal with the cold? Do you walk through snow in sandals? Do you pull on your swimsuit for a nice icy swim? Of course not! People put on their winter coats. Those

More information

In this session we will focus on summarising what you need to know about:

In this session we will focus on summarising what you need to know about: SESSION 15: HISTORY OF LIFE ON EARTH KEY CONCEPTS In this session we will focus on summarising what you need to know about: Terminology and Definitions Life's History Mass Extinctions Key Events in the

More information

When the last member of a species dies without any surviving

When the last member of a species dies without any surviving 89 Here Today, Gone Tomorrow? ta l k i n g i t ov e r When the last member of a species dies without any surviving offspring, we say that that species has become extinct. Every species alive today is related

More information

ECOSYSTEM RESPONSES. reflect

ECOSYSTEM RESPONSES. reflect reflect There is a saying, No man is an island, which means that people need one another in order to survive. Everyone on Earth is interconnected in some way. This is not only true of human beings, but

More information

Unit 12 Earth s Changing Climate

Unit 12 Earth s Changing Climate Background Introduction Unit 12 Earth s Changing Climate Earth has been undergoing one of the most extensive experiments in the history of civilization. Today the planet is warmer than it has been for

More information

Unit: Healthy Habits Grade: 1

Unit: Healthy Habits Grade: 1 Unit: Healthy Habits 5.3b Good health habits include hand washing, personal cleanliness; avoiding harmful substances; eating a balanced diet; engaging in regular eercise ways to stay healthy Wash hands

More information

4 th Grade Science Unit B: Life Sciences Chapter 3: Flow of Energy and Matter Lesson 1: How does energy flow?

4 th Grade Science Unit B: Life Sciences Chapter 3: Flow of Energy and Matter Lesson 1: How does energy flow? 4 th Grade Science Unit B: Life Sciences Chapter 3: Flow of Energy and Matter Lesson 1: How does energy flow? ecosystem Ecosystem is the living and nonliving things and the way they interact in an environment.

More information

Ecosystem Ecology. Community interacts with abiotic factors. Objectives

Ecosystem Ecology. Community interacts with abiotic factors. Objectives Ecosystem Ecology Community interacts with abiotic factors Objectives Compare the processes of energy flow and chemical cycling as they relate to ecosystem dynamics. Define and list examples of producers,

More information

Life Science Vocabulary. organ - group of tissues that work together to carry out a specific function

Life Science Vocabulary. organ - group of tissues that work together to carry out a specific function Life Science Vocabulary Structure and Function cell - basic unit of life found in all living things tissue - a group of specialized cells organ - group of tissues that work together to carry out a specific

More information

The Greenhouse Effect

The Greenhouse Effect The Greenhouse Effect The Sun, which is the Earth's only external form of heat, emits solar radiation mainly in the form of visible and ultraviolet (UV) radiation. As this radiation travels toward the

More information