4 Asteroids, Comets, and Meteoroids
|
|
- Miles Owen
- 7 years ago
- Views:
Transcription
1 CHAPTER 28 4 Asteroids, Comets, and Meteoroids SECTION Minor Bodies of the Solar System KEY IDEAS As you read this section, keep these questions in mind: What are the physical characteristics of asteroids and comets? Where is the Kuiper Belt located? How do meteoroids, meteorites, and meteors differ? What is the relationship between the Oort cloud and comets? What Are Asteroids? Asteroids are chunks of rock that orbit the sun. Astronomers have discovered more than 300,000 asteroids, and they think that millions may exist. Like the orbits of planets, the orbits of asteroids are ellipses. READING TOOLBOX Compare After you read this section, create a three-way Venn diagram to compare asteroids, comets, and meteoroids. Some of the overlapping spaces in the diagram may be left blank. Asteroids vary greatly in size. Asteroid Ida is 56 km long. Asteroid Dactyl is 1.5 km across. 1. Identify On the picture, label which asteroid is Ida and which is Dactyl. LOCATION OF ASTEROIDS Most asteroids are located in a region between the orbits of Mars and Jupiter. This region is called the asteroid belt. Some asteroids, however, orbit the sun more closely. The closest asteroids to the sun are located inside the orbit of Mars. The Trojan asteroids are groups of asteroids found near Jupiter. READING CHECK 2. Describe Where are most asteroids located? Holt McDougal Earth Science 451 Minor Bodies of the Solar System
2 3. Compare How is the appearance of a carbon asteroid different from the appearance of an iron and nickel asteroid? COMPOSITION OF ASTEROIDS The composition of an asteroid is similar to the composition of the inner planets. Scientists group asteroids into three main categories based on their main component. The table below describes these categories. The Main Categories of Asteroids Category (main component) Carbon Silicate minerals Iron and nickel Description the most common type of asteroid generally dark colored look like Earth rocks the rarest type of asteroid look shiny and metallic Critical Thinking 4. Connect Ideas When an asteroid collides with Earth, it produces effects similar to those of a large volcanic eruption. What is one way an asteroid impact might harm life on Earth? NEAR-EARTH ASTEROIDS More than 1,000 asteroids have orbits that sometimes bring the asteroids very close to Earth s orbit. Thus, scientists call them near-earth asteroids. Near-Earth asteroids make up only a very small percentage of the total number of asteroids. However, these asteroids could cause a great deal of damage if they struck Earth. Asteroid detection programs track asteroids whose orbits may bring them close to Earth. By monitoring these asteroids, scientists hope to predict and possibly avoid future collisions. Barringer Meteorite Crater in Arizona formed when a small asteroid with a diameter of only 50 m struck Earth. This impact happened 49,000 years ago. Asteroid impacts have produced dozens of craters on Earth. However, most craters have eroded, or sediments have covered them. Therefore, they are hard to see. Barringer Meteorite Crater, which is also called Meteor Crater, is the result of an asteroid impact. Holt McDougal Earth Science 452 Minor Bodies of the Solar System
3 What Are Comets? A comet is a small body of ice, rock, and dust that follows a highly elliptical orbit around the sun. One of the most famous comets is Halley s Comet, which passes by Earth every 76 years. It last passed Earth in Another comet, Hale-Bopp, is visible from Earth every 5 to 10 years. COMPOSITION OF COMETS A comet has several parts: a core (nucleus), a coma, and two tails. The core of a comet is made up of rock, metals, and ice. Comet cores are typically between 1 km and 100 km in diameter. The coma is a cloud of gas and dust that surrounds the core. A comet looks bright because the coma reflects sunlight. Together, the core and coma form the head of the comet. Solar energy causes ice in a comet to change to a gas. Solar winds push the gas off behind the comet, forming the gas tail, or ion tail. Thus, the ion tail of a comet points away from the sun. A comet s second tail, the dust tail, is made up of dust. The dust tail curves backward along the comet s orbit. Talk About It Connecting Ideas You have probably heard the word nucleus used in different contexts. With a partner, identify several uses of this term and talk about what these uses have in common. If you are unfamiliar with other uses of nucleus, look up the word in a dictionary. You could also use the glossaries of life science and physical science textbooks. The upper tail on this comet is the ion tail. The lower tail is the dust tail. 5. Apply Concepts On the diagram, draw an arrow to show the direction in which the sun lies. THE KUIPER BELT The Kuiper Belt is a region beyond Neptune s orbit. It forms a ring of dwarf planets and small icy bodies. The dwarf planets Pluto and Eris are located in the Kuiper Belt. Holt McDougal Earth Science 453 Minor Bodies of the Solar System
4 READING CHECK 6. Identify What is the Oort cloud? THE OORT CLOUD Astronomers think most comets come from the Oort cloud. The Oort cloud is a cloud of dust and ice that lies far beyond Neptune s orbit. It surrounds the solar system and contains the nuclei of billions of comets. Scientists think that the matter in the Oort cloud is left over from the formation of the solar system. Studying this matter helps scientist understand the history of the solar system. Bodies within the Oort cloud may take a few million years to complete one circular orbit. Comets follow elliptical paths that take them closer to the sun. Those that take more than 200 years to complete one orbit are called long-period comets. Comets that complete one orbit in less than 200 years are called short-period comets. Recently, scientists discovered that most shortperiod comets actually come from the Kuiper Belt. OORT CLOUD Orbit of long-period comet Kuiper Belt Orbit of Neptune Inner solar system Orbit of short-period comet 7. Identify On the diagram, circle the region that scientists think most shortperiod comets come from. Most comets come from the Oort cloud. The Oort cloud is located far beyond Neptune s orbit, in the outer parts of the solar system. What Are Meteoroids? Small bits of rock and metal called meteoroids also move through the solar system. Most meteoroids have a diameter less than 1 mm. Scientists think that most meteoroids are pieces of matter that broke off comets. Some comets may be pieces of asteroids. Holt McDougal Earth Science 454 Minor Bodies of the Solar System
5 METEORS Sometimes, meteoroids enter Earth s atmosphere. In Earth s atmosphere, friction between the meteoroid and the air heats the meteoroid. As a result, the meteoroid burns up. As the meteoroid burns, it produces a bright light called a meteor. Some people call meteors shooting stars. When many meteoroids enter Earth s atmosphere in a short time, a meteor shower occurs. METEORITES Most meteoroids that enter Earth s atmosphere burn up, but some larger meteoroids do not burn up completely. These meteoroids fall to Earth s surface. A meteoroid that hits Earth s surface is called a meteorite. Most meteorites are small. However, some meteorites strike Earth with the force of a large bomb. These impacts leave large craters. Scientists group meteorites into three categories. The table below describes these categories. READING CHECK 8. Describe How does a meteor form? The Main Categories of Meteorites Category Stony Iron Stony-iron Description similar in composition to rocks on Earth most common type of meteorite have a metallic appearance contain both iron and stone rarest type of meteorite Some stony meteorites contain carbon compounds. Iron meteorites look very different from most Earth rocks. Many stony-iron meteorites contain pieces of stone surrounded by iron. 9. Explain Iron meteorites are the easiest kind of meteorite to identify. What is the most likely reason for this? Holt McDougal Earth Science 455 Minor Bodies of the Solar System
6 Section 4 Review SECTION VOCABULARY asteroid a small, rocky object that orbits the sun; most asteroids are located in a band between the orbits of Mars and Jupiter comet a small body of rock, ice, and cosmic dust that follows an elliptical orbit around the sun and that gives off gas and dust in the form of a tail as it passes close to the sun Kuiper Belt a region of the solar system that starts just beyond the orbit of Neptune and that contains dwarf planets and other small bodies made mostly of ice meteor a bright streak of light that results when a meteoroid burns up in Earth s atmosphere meteoroid a relatively small, rocky body that travels through space Oort cloud a spherical region that surrounds the solar system, that extends from the Kuiper Belt to almost halfway to the nearest star, and that contains billions of comets 1. Compare Describe two differences between asteroids and comets. 2. Infer Could the ion tail of a comet ever point in the opposite direction from the dust tail? Explain your answer. 3. Describe List the following parts of the solar system from closest to the sun to farthest from the sun: Kuiper Belt, asteroid belt, Neptune, Oort cloud. 4. Apply Concepts Suppose astronomers discovered a comet that takes about 875 years to orbit the sun. Is the comet a short-period comet or a long-period comet? Where did it probably come from? 5. Identify Errors Your friend tells you that he found a meteor in his backyard. What is wrong with your friend s statement? Holt McDougal Earth Science 456 Minor Bodies of the Solar System
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 informationThe Solar System. Source http://starchild.gsfc.nasa.gov/docs/starchild/solar_system_level1/solar_system.html
The Solar System What is the solar system? It is our Sun and everything that travels around it. Our solar system is elliptical in shape. That means it is shaped like an egg. Earth s orbit is nearly circular.
More informationVagabonds of the Solar System. Chapter 17
Vagabonds of the Solar System Chapter 17 ASTR 111 003 Fall 2006 Lecture 13 Nov. 27, 2006 Introduction To Modern Astronomy I Introducing Astronomy (chap. 1-6) Planets and Moons (chap. 7-17) Ch7: Comparative
More informationChapter 12 Asteroids, Comets, and Dwarf Planets. Asteroid Facts. What are asteroids like? Asteroids with Moons. 12.1 Asteroids and Meteorites
Chapter 12 Asteroids, Comets, and Dwarf Planets Their Nature, Orbits, and Impacts What are asteroids like? 12.1 Asteroids and Meteorites Our goals for learning:! What are asteroids like?! Why is there
More informationStudy Guide: Solar System
Study Guide: Solar System 1. How many planets are there in the solar system? 2. What is the correct order of all the planets in the solar system? 3. Where can a comet be located in the solar system? 4.
More informationStudy Guide due Friday, 1/29
NAME: Astronomy Study Guide asteroid chromosphere comet corona ellipse Galilean moons VOCABULARY WORDS TO KNOW geocentric system meteor gravity meteorite greenhouse effect meteoroid heliocentric system
More informationChapter 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 informationSolar System Fact Sheet
Solar System Fact Sheet (Source: http://solarsystem.nasa.gov; http://solarviews.com) The Solar System Categories Mercury Venus Earth Mars Jupiter Saturn Uranus Neptune Rocky or Gas Rocky Rocky Rocky Rocky
More informationA Solar System Coloring Book
A Solar System Coloring Book Courtesy of the Windows to the Universe Project http://www.windows2universe.org The Sun Size: The Sun is wider than 100 Earths. Temperature: ~27,000,000 F in the center, ~10,000
More informationGroup Leader: Group Members:
THE SOLAR SYSTEM PROJECT: TOPIC: THE SUN Required Project Content for an Oral/Poster Presentation on THE SUN - What it s made of - Age and how it formed (provide pictures or diagrams) - What is an AU?
More informationA SOLAR SYSTEM COLORING BOOK
A SOLAR SYSTEM COLORING BOOK Brought to you by: THE SUN Size: The Sun is wider than 100 Earths. 1 Temperature: 27,000,000 F in the center, 10,000 F at the surface. So that s REALLY hot anywhere on the
More informationLecture 12: The Solar System Briefly
Lecture 12: The Solar System Briefly Formation of the Moonhttp://www.youtube.com/watch?v=WpOKztEiMqo&feature =related Formation of our Solar System Conservation of Angular Momentum Why are the larger,
More informationName: Date: Goals: to discuss the composition, components, and types of comets; to build a comet and test its strength and reaction to light
Name: Date: 17 Building a Comet 17.1 Introduction Comets represent some of the earliest material left over from the formation of the solar system, and are therefore of great interest to planetary astronomers.
More informationToday. Events. The Little Things. Asteroids & Comets. Dwarf Planets. Homework 5. Due in 1 week
Today The Little Things Asteroids & Comets Dwarf Planets Events Homework 5 Due in 1 week Asteroids, Comets, and Dwarf Planets: Their Nature, Orbits, and Impacts What are asteroids like? Asteroid traversing
More informationRelated Standards and Background Information
Related Standards and Background Information Earth Patterns, Cycles and Changes This strand focuses on student understanding of patterns in nature, natural cycles, and changes that occur both quickly and
More informationThe Asteroid Belt. Composition and Classification. Where Different Asteroids are Found
Asteroids The orbits of most of the asteroids lie between those of Mars and Jupiter Asteroid belt More than 10,000 asteroids have well-determined orbits Asteroids 2410 and 4859 are named for the two of
More informationTHE 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 informationASTEROIDS, COMETS & METEORS TEACHER S GUIDE
207-453-7668 info@northern-stars.com www.northern-stars.com Page 1 ASTEROIDS, COMETS & METEORS TEACHER S GUIDE This Teacher s Guide is designed to help you, the teacher, better prepare your students for
More informationEarth Is Not the Center of the Universe
Earth Is Not the Center of the Universe Source: Utah State Office of Education Introduction Have you ever looked up at the night sky and wondered about all the pinpoint lights? People through the ages
More information143,000 km Key to Sorting the Solar System Cards Object Description Size (km) Picture Credits Barringer Crater Ceres Earth Earth's moon Eris Eros Gaspra Hale-Bopp Hoba Iapetus Ida and Dactyl Itokawa
More informationUNIT V. Earth and Space. Earth and the Solar System
UNIT V Earth and Space Chapter 9 Earth and the Solar System EARTH AND OTHER PLANETS A solar system contains planets, moons, and other objects that orbit around a star or the star system. The solar system
More informationNOTES: GEORGIA HIGH SCHOOL SCIENCE TEST THE SOLAR SYSTEM
NOTES: GEORGIA HIGH SCHOOL SCIENCE TEST THE SOLAR SYSTEM 1.What is a Solar system? A solar system consists of: * one central star, the Sun and * nine planets: Mercury, Venus, Earth, Mars, Jupiter, Saturn,
More informationScience 9 Worksheet 13-1 The Solar System
Name Date Due Date Science 9 Read pages 264-287 of SP to help you answer the following questions: Also, go to a school computer connected to the internet. Go to Mr. Colgur s Webpage at http://sd67.bc.ca/teachers/dcolgur
More informationAsteroids, Comets, and Pluto: The Small Pieces
Asteroids, Comets, and Pluto: The Small Pieces from A Spin Around the Solar System Series Video Produced by... Maslowski Wildlife Productions Teacher s guide by... Lauren LaComb Published and Distributed
More informationAsteroids, Comets, Meteoroids
Asteroids, Comets, Meteoroids (modified from a lesson from Spaceday.org) Activity One Read and make sure you understand the background information! Activity Two Creating Scale Model Strips Materials Ruler
More informationAsteroids, Meteorites, and Comets
Asteroids, Meteorites, and Comets The Search for the Missing Planet Bode s Law relates the sizes of planetary orbits Astronomers noticed a missing planet if this rule of thumb was correct. Body Actual
More informationCopyright 2006, Astronomical Society of the Pacific
2 1 3 4 Diameter: 590 miles (950 km) Distance to Sun: 257 million miles (414 million km) Orbits: # 18 Composition: Outer layer probably ice and frozen ammonia, no Diameter: 750 miles (1200 km) Distance
More informationGeorgia Performance Standards Framework for Science Grade 6. Unit Organizer: UNIVERSE AND SOLAR SYSTEM (Approximate Time 3 Weeks)
The following instructional plan is part of a GaDOE collection of Unit Frameworks, Performance Tasks, examples of Student Work, and Teacher Commentary. Many more GaDOE approved instructional plans are
More informationAsteroids. Earth. Asteroids. Earth Distance from sun: 149,600,000 kilometers (92,960,000 miles) Diameter: 12,756 kilometers (7,926 miles) dotted line
Image taken by NASA Asteroids About 6,000 asteroids have been discovered; several hundred more are found each year. There are likely hundreds of thousands more that are too small to be seen from Earth.
More informationANSWER KEY. Chapter 22. 8. phase 9. spring 10. lunar 11. solar 12. gravity
Chapter 22 Section 22-1 Review and Reinforce (p. 11) 1. winter 2. At point A the sun would be directly overhead, at point B it would be on the horizon, and at point C it would not be visible because it
More informationIntroduction to the Solar System
Introduction to the Solar System Lesson Objectives Describe some early ideas about our solar system. Name the planets, and describe their motion around the Sun. Explain how the solar system formed. Introduction
More informationThe Inner Solar System by Leslie Cargile
The Inner Solar System The inner solar system is the name of the terrestrial planets and asteroid belt. Terrestrial is just a fancy way of saying rocky. Like the Earth, terrestrial planets have a core
More informationThe Earth, Sun & Moon. The Universe. The Earth, Sun & Moon. The Universe
Football Review- Earth, Moon, Sun 1. During a total solar eclipse, when almost all of the Sun's light traveling to the Earth is blocked by the Moon, what is the order of the Earth, Sun, and Moon? A. Moon,
More informationTO GO TO ANY OF THE PAGES LISTED BELOW, CLICK ON ITS TITLE
TO GO TO ANY OF THE PAGES LISTED BELOW, CLICK ON ITS TITLE CHAPTER 17 The Solar System 1 17-1 What is the solar system? 2 17-2 What do we know about orbits? 3 Comparing Planetary Revolutions Enrichment
More informationOur Planetary System. Earth, as viewed by the Voyager spacecraft. 2014 Pearson Education, Inc.
Our Planetary System Earth, as viewed by the Voyager spacecraft 7.1 Studying the Solar System Our goals for learning: What does the solar system look like? What can we learn by comparing the planets to
More informationUnit 8 Lesson 2 Gravity and the Solar System
Unit 8 Lesson 2 Gravity and the Solar System Gravity What is gravity? Gravity is a force of attraction between objects that is due to their masses and the distances between them. Every object in the universe
More informationAstronomy Notes for Educators
Our Solar System Astronomy Notes for Educators Our Solar System 5-1 5-2 Specific Outcomes: Learning Outcome 1: Knowledge / Content and it place in the Milky Way Different types of bodies make up the Solar
More informationOut of This World Classroom Activity
Out of This World Classroom Activity The Classroom Activity introduces students to the context of a performance task, so they are not disadvantaged in demonstrating the skills the task intends to assess.
More information1 A Solar System Is Born
CHAPTER 3 1 A Solar System Is Born SECTION Formation of the Solar System BEFORE YOU READ After you read this section, you should be able to answer these questions: What is a nebula? How did our solar system
More informationCosmic Journey: A Solar System Adventure General Information
Cosmic Journey: A Solar System Adventure General Information Imagine it a huge spiral galaxy containing hundreds of billions of stars, spiraling out from a galactic center. Nestled deep within one of the
More informationSolar System Overview
Solar System Overview Planets: Four inner planets, Terrestrial planets Four outer planets, Jovian planets Asteroids: Minor planets (planetesimals) Meteroids: Chucks of rocks (smaller than asteroids) (Mercury,
More informationThe orbit of Halley s Comet
The orbit of Halley s Comet Given this information Orbital period = 76 yrs Aphelion distance = 35.3 AU Observed comet in 1682 and predicted return 1758 Questions: How close does HC approach the Sun? What
More informationThe 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 informationBackground Information Students will learn about the Solar System while practicing communication skills.
Teacher Information Background Information Students will learn about the Solar System while practicing communication skills. Materials clipboard for each student pencils copies of map and Available Destinations
More informationPluto Data: Numbers. 14b. Pluto, Kuiper Belt & Oort Cloud. Pluto Data (Table 14-5)
14b. Pluto, Kuiper Belt & Oort Cloud Pluto Pluto s moons The Kuiper Belt Resonant Kuiper Belt objects Classical Kuiper Belt objects Pluto Data: Numbers Diameter: 2,290.km 0.18. Earth Mass: 1.0. 10 22 kg
More information7. Our Solar System. Planetary Orbits to Scale. The Eight Planetary Orbits
7. Our Solar System Terrestrial & Jovian planets Seven large satellites [moons] Chemical composition of the planets Asteroids & comets The Terrestrial & Jovian Planets Four small terrestrial planets Like
More informationExplain the Big Bang Theory and give two pieces of evidence which support it.
Name: Key OBJECTIVES Correctly define: asteroid, celestial object, comet, constellation, Doppler effect, eccentricity, eclipse, ellipse, focus, Foucault Pendulum, galaxy, geocentric model, heliocentric
More informationLER 2891. Ages. Grades. Solar System. A fun game of thinking & linking!
Solar System Ages 7+ LER 2891 Grades 2+ Card Game A fun game of thinking & linking! Contents 45 Picture cards 45 Word cards 8 New Link cards 2 Super Link cards Setup Shuffle the two decks together to mix
More information4 HOW OUR SOLAR SYSTEM FORMED 750L
4 HOW OUR SOLAR SYSTEM FORMED 750L HOW OUR SOLAR SYSTEM FORMED A CLOSE LOOK AT THE PLANETS ORBITING OUR SUN By Cynthia Stokes Brown, adapted by Newsela Planets come from the clouds of gas and dust that
More information1. Soaring Through Our Solar System By Laura G. Smith
1. Soaring Through Our Solar System By Laura G. Smith 1 Five, four, three, two, one... BLAST OFF! Come along as we explore our solar system! If we were flying high above the Earth, what would you see?
More informationUnit 1.8: Earth and Space Science Planets & Stars
Weekly Focus: Reading for Comprehension Weekly Skill: Compare and Contrast Lesson Summary: This week students will continue to learn about the makeup of the Cosmos, specifically the solar system. Students
More informationChapter 1 Our Place in the Universe
Chapter 1 Our Place in the Universe Syllabus 4 tests: June 18, June 30, July 10, July 21 Comprehensive Final - check schedule Website link on blackboard 1.1 Our Modern View of the Universe Our goals for
More informationHow To Celebrate The Pictures Of The Asteroid Vesta
1 of 11 08/02/2012 09:04 PM Article LOS ANGELES, California (Achieve3000, May 1, 2012). Vesta is stepping into the spotlight. Thanks to NASA's Dawn spacecraft, scientists now have the first close-up pictures
More informationVoyage: A Journey through our Solar System. Grades 5-8. Lesson 1: Our Solar System
Voyage: A Journey through our Solar System Grades 5-8 Lesson 1: Our Solar System On a visit to the National Mall in Washington, DC, one can see monuments of a nation Memorials to Lincoln, Jefferson, and
More informationSummary: Four Major Features of our Solar System
Summary: Four Major Features of our Solar System How did the solar system form? According to the nebular theory, our solar system formed from the gravitational collapse of a giant cloud of interstellar
More informationWhy don t planets crash into each other?
1 Just as we know that the sun will rise every morning, we expect the planets and the moon to stay in their orbits. And rightly so. For 400 years, people have understood that the movements of Earth, the
More informationTHE SOLAR SYSTEM. Worksheets UNIT 1. Raül Martínez Verdún
Worksheets UNIT 1 October-December 2009 NAME: DATE: Worksheet 1A Cut out these 9 circles and then order them from the smallest to the biggest. NAME: DATE: Worksheet 1B NAME: DATE: Worksheet 2 Read the
More informationSolar System. 1. The diagram below represents a simple geocentric model. Which object is represented by the letter X?
Solar System 1. The diagram below represents a simple geocentric model. Which object is represented by the letter X? A) Earth B) Sun C) Moon D) Polaris 2. Which object orbits Earth in both the Earth-centered
More information2007 Pearson Education Inc., publishing as Pearson Addison-Wesley. The Jovian Planets
The Jovian Planets The Jovian planets are gas giants - much larger than Earth Sizes of Jovian Planets Planets get larger as they get more massive up to a point... Planets more massive than Jupiter are
More informationKINDERGARTEN 1 WEEK LESSON PLANS AND ACTIVITIES
KINDERGARTEN 1 WEEK LESSON PLANS AND ACTIVITIES UNIVERSE CYCLE OVERVIEW OF KINDERGARTEN UNIVERSE WEEK 1. PRE: Discovering misconceptions of the Universe. LAB: Comparing size and distances in space. POST:
More informationPlanets and Dwarf Planets by Shauna Hutton
Name: Wow! Technology has improved so well in the last several years that we keep finding more and more objects in our solar system! Because of this, scientists have had to come up with new categories
More informationVoyage: A Journey through our Solar System. Grades 5-8. Lesson 1: Our Solar System
Voyage: A Journey through our Solar System Grades 5-8 Lesson 1: Our Solar System On October 17, 2001, a one to ten billion scale model of the Solar System was permanently installed on the National Mall
More informationProbing for Information
Name Class Date Inquiry Lab Probing for Information Using Scientific Methods Information about planets in our solar system has been collected by observation from Earth and from probes, or scientific instruments,
More informationChapter 6 Formation of Planetary Systems Our Solar System and Beyond
Chapter 6 Formation of Planetary Systems Our Solar System and Beyond The solar system exhibits clear patterns of composition and motion. Sun Over 99.9% of solar system s mass Made mostly of H/He gas (plasma)
More informationOur Solar System Unit of Work
Lesson 1: Introducing our Solar System Introduction In this lesson, students will be introduced to our Solar System. They will explore what it contains and use common items to create a scaled version of
More informationHONEY, I SHRUNK THE SOLAR SYSTEM
OVERVIEW HONEY, I SHRUNK THE SOLAR SYSTEM MODIFIED VERSION OF A SOLAR SYSTEM SCALE MODEL ACTIVITY FROM UNDERSTANDING SCIENCE LESSONS Students will construct a scale model of the solar system using a fitness
More informationThe Solar System. Olivia Paquette
The Solar System Olivia Paquette Table of Contents The Sun 1 Mercury 2,3 Venus 4,5 Earth 6,7 Mars 8,9 Jupiter 10,11 Saturn 12 Uranus 13 Neptune Pluto 14 15 Glossary. 16 The Sun Although it may seem like
More informationSolar System Formation
Solar System Formation Solar System Formation Question: How did our solar system and other planetary systems form? Comparative planetology has helped us understand Compare the differences and similarities
More informationSo What All Is Out There, Anyway?
So What All Is Out There, Anyway? Imagine that, like Alice in Wonderland, you have taken a magic potion that makes you grow bigger and bigger. You get so big that soon you are a giant. You can barely make
More information25 MS The Solar System Chapter Outline
www.ck12.org CHAPTER 25 MS The Solar System Chapter Outline 25.1 INTRODUCTION TO THE SOLAR SYSTEM 25.2 INNER PLANETS 25.3 OUTER PLANETS 25.4 OTHER OBJECTS IN THE SOLAR SYSTEM 25.5 REFERENCES Earth is not
More informationCHARACTERISTICS 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 informationLecture 10 Formation of the Solar System January 6c, 2014
1 Lecture 10 Formation of the Solar System January 6c, 2014 2 Orbits of the Planets 3 Clues for the Formation of the SS All planets orbit in roughly the same plane about the Sun. All planets orbit in the
More informationChapter 8 Formation of the Solar System. What theory best explains the features of our solar system? Close Encounter Hypothesis
Chapter 8 Formation of the Solar System What properties of our solar system must a formation theory explain? 1. Patterns of motion of the large bodies Orbit in same direction and plane 2. Existence of
More informationExploring Our Solar System Teacher s Guide
Northern Stars Planetarium 15 Western Ave., Fairfield, ME 04937 (207) 453-7668 Page 1 Exploring Our Solar System Teacher s Guide Exploring Our Solar System is a planetarium program that explores the latest
More informationThe Main Point. Lecture #34: Solar System Origin II. Chemical Condensation ( Lewis ) Model. How did the solar system form? Reading: Chapter 8.
Lecture #34: Solar System Origin II How did the solar system form? Chemical Condensation ("Lewis") Model. Formation of the Terrestrial Planets. Formation of the Giant Planets. Planetary Evolution. Reading:
More informationThe Solar System CHAPTER 19. Chapter Preview. 1 Sun, Earth, and Moon The View from Earth The Moon
CHAPTER 19 The Solar System Chapter Preview 1 Sun, Earth, and Moon The View from Earth The Moon 2 The Inner and Outer Planets The Inner Planets The Outer Planets 3 Formation of the Solar System Astronomy
More informationA.4 The Solar System Scale Model
CHAPTER A. LABORATORY EXPERIMENTS 25 Name: Section: Date: A.4 The Solar System Scale Model I. Introduction Our solar system is inhabited by a variety of objects, ranging from a small rocky asteroid only
More informationClass 2 Solar System Characteristics Formation Exosolar Planets
Class 1 Introduction, Background History of Modern Astronomy The Night Sky, Eclipses and the Seasons Kepler's Laws Newtonian Gravity General Relativity Matter and Light Telescopes Class 2 Solar System
More informationSGL 101 MATERIALS OF THE EARTH Lecture 1 C.M.NYAMAI LECTURE 1. 1.0 ORIGIN, STRUCTURE AND COMPOSITION OF THE EARTH
LECTURE 1. 1.0 ORIGIN, STRUCTURE AND COMPOSITION OF THE EARTH 1.1 INTRODUCTION. Welcome to Lecture 1 of this unit. To start with, stop and look around you wherever you are. Take a look at all the things
More informationThe Layout of the Solar System
The Layout of the Solar System Planets fall into two main categories Terrestrial (i.e. Earth-like) Jovian (i.e. Jupiter-like or gaseous) [~5000 kg/m 3 ] [~1300 kg/m 3 ] What is density? Average density
More informationAn Asteroid Garden for the Gainesville Solar Walk And an Asteroid Primer
Adapted From AAC Newsletter FirstLight (2009 Jan/Feb) [Note: The proposed asteroid garden had never been built due to lack of funds.] An Asteroid Garden for the Gainesville Solar Walk And an Asteroid Primer
More informationThe University of Texas at Austin. Gravity and Orbits
UTeach Outreach The University of Texas at Austin Gravity and Orbits Time of Lesson: 60-75 minutes Content Standards Addressed in Lesson: TEKS6.11B understand that gravity is the force that governs the
More informationSTUDY GUIDE: Earth Sun Moon
The Universe is thought to consist of trillions of galaxies. Our galaxy, the Milky Way, has billions of stars. One of those stars is our Sun. Our solar system consists of the Sun at the center, and all
More informationOur Solar System, Our Galaxy, then the Universe
Our Solar System, Our Galaxy, then the Universe Al Globus, April 2012 Orbital Space Settlements When thinking about space settlement, most people think in terms of cities on the Moon or Mars. However,
More informationOur Solar System. Our Solar System LEVELED BOOK S. www.readinga-z.com. Visit www.readinga-z.com for thousands of books and materials.
Our Solar System A Reading A Z Level S Leveled Book Word Count: 1,766 LEVELED BOOK S Our Solar System Written by Bruce D. Cooper Visit www.readinga-z.com for thousands of books and materials. www.readinga-z.com
More informationSolar System Fundamentals. What is a Planet? Planetary orbits Planetary temperatures Planetary Atmospheres Origin of the Solar System
Solar System Fundamentals What is a Planet? Planetary orbits Planetary temperatures Planetary Atmospheres Origin of the Solar System Properties of Planets What is a planet? Defined finally in August 2006!
More informationChapter 7 Our Planetary System. What does the solar system look like? Thought Question How does the Earth-Sun distance compare with the Sun s radius
Chapter 7 Our Planetary System 7.1 Studying the Solar System Our goals for learning:! What does the solar system look like?! What can we learn by comparing the planets to one another?! What are the major
More informationTHE SOLAR SYSTEM AND THE UNIVERSE
THE SOLAR SYSTEM AND THE UNIVERSE TEACHER INFORMATION SHEETS MERCURY Gigantic iron core (70% of interior); perhaps partially molten Thin silicate mantle (25%) Thin crust perhaps
More informationL3: The formation of the Solar System
credit: NASA L3: The formation of the Solar System UCL Certificate of astronomy Dr. Ingo Waldmann A stable home The presence of life forms elsewhere in the Universe requires a stable environment where
More informationAsteroids, Comets, and Meteoroids
17 LESSON Asteroids, Comets, and Meteoroids WILLIAM JAMES WARREN/CORBIS INTRODUCTION On the night of July 23, 1995, astronomers Alan Hale and Tom Bopp discovered Comet Hale-Bopp from different locations.
More informationGravity. in the Solar System. Beyond the Book. FOCUS Book
FOCUS Book Design a test to find out whether Earth s gravity always pulls straight down. A pendulum is a weight that hangs from a string or rod that can swing back and forth. Use string and metal washers
More information4 HOW OUR SOLAR SYSTEM FORMED 890L
4 HOW OUR SOLAR SYSTEM FORMED 890L HOW OUR SOLAR SYSTEM FORMED A CLOSE LOOK AT THE PLANETS ORBITING OUR SUN By Cynthia Stokes Brown, adapted by Newsela Planets are born from the clouds of gas and dust
More informationastronomy 2008 1. A planet was viewed from Earth for several hours. The diagrams below represent the appearance of the planet at four different times.
1. A planet was viewed from Earth for several hours. The diagrams below represent the appearance of the planet at four different times. 5. If the distance between the Earth and the Sun were increased,
More informationSpace Exploration Classroom Activity
Space Exploration Classroom Activity The Classroom Activity introduces students to the context of a performance task, so they are not disadvantaged in demonstrating the skills the task intends to assess.
More informationOrbital Dynamics. Orbital Dynamics 1/29/15
Orbital Dynamics Orbital Dynamics 1/29/15 Announcements Reading for next class Chapter 5: Sections 5.1-5.4 Homework #2 due next class (Tuesday, Feb. 3) Project #1 topic ideas due next Tuesday (Feb. 3)
More informationName Date THE OUTER PLANETS
THE OUTER PLANETS The outer planets are the planets that are the farthest from the sun. There are four outer planets. Their names are Jupiter, Saturn, Uranus, and Neptune. Jupiter, Saturn, Uranus, and
More informationSection 1 The Earth System
Section 1 The Earth System Key Concept Earth is a complex system made up of many smaller systems through which matter and energy are continuously cycled. What You Will Learn Energy and matter flow through
More informationChapter 25.1: Models of our Solar System
Chapter 25.1: Models of our Solar System Objectives: Compare & Contrast geocentric and heliocentric models of the solar sytem. Describe the orbits of planets explain how gravity and inertia keep the planets
More informationDiscover the planets of our solar system. In 90 minutes through the universe. On a hiking path between Ehrenfriedensdorf and Drebach
Discover the planets of our solar system In 90 minutes through the universe On a hiking path between Ehrenfriedensdorf and Drebach Solar System - Sonnensystem The Solar System consists of the Sun and the
More informationChapter 8 Formation of the Solar System Agenda
Chapter 8 Formation of the Solar System Agenda Announce: Mercury Transit Part 2 of Projects due next Thursday Ch. 8 Formation of the Solar System Philip on The Physics of Star Trek Radiometric Dating Lab
More information