The Chebarkul Meteor of 15 February 2013

Save this PDF as:
 WORD  PNG  TXT  JPG

Size: px
Start display at page:

Download "The Chebarkul Meteor of 15 February 2013"

Transcription

1 The Chebarkul Meteor of 15 February 2013 Introduction The earth has long been bombarded by objects from space that range from microscopic sized particles to objects tens of kilometres or larger. Fortunately, impacts with the larger objects are rare. These objects are mostly asteroids, which are metallic, rocky bodies, without atmospheres, that orbit the Sun, just like planets, but are too small to be considered planets themselves. There are tens of thousands of them gathered into the main asteroid belt, a donut-shaped ring located between the orbits of Mars and Jupiter. Astronomers conclude they are made from primordial rock. Jupiter's strong gravity prevented these small bodies from forming into a planet when the solar system began 4.6 billion years ago. In November 2007, NASA reported 900 known potentially hazardous objects (PHOs), most of which are asteroids. PHOs are defined as objects larger than 492 feet in diameter whose trajectories bring them to within about 4.6 million miles of the Earth s orbit. NASA scientists estimate the total population of PHOs to be around 20,000. A tsunami can be generated by an asteroid impacting the ocean. There are no known examples during human history of tsunami being generated by asteroids, although the earth does preserve geological evidence of ocean impacts from asteroid-tsunami. For example, there is evidence to suggest that a 1 km or larger object, the Eltanin asteroid, impacted the Southern Ocean about 2.15 million years ago. This event is estimated to have generated a tsunami with amplitudes between about 10 and 20 metres along the NSW coast. The catastrophic K/T impact event that ended the Cretaceous period about 65 million years ago is attributed to an asteroid, likely larger than 10 km, impacting the area near Chicxulub, Mexico. This event generated a huge tsunami in the Gulf of Mexico and Caribbean Sea, generating asteroid-tsunami deposits in Texas, Haiti and Florida. Objects less than 30 metres in dimension disintegrate as they enter the earth s atmosphere, and are therefore unlikely to be able to generate ground impacts or tsunami. Moderate sized objects ( metres in diameter) are expected to contribute most of the hazard due to their relatively frequent occurrence. Objects larger than this would generate global catastrophes that would engulf the entire coastlines of affected continents if they impacted the ocean, but the recurrence intervals of such events are very long. The Chebarkul Meteor of 15 February 2013 On Friday, February 15, a meteor exploded over the city of Chelyabinsk (population: 1 million) around 9.20am local time (3:20: 26 UTC) in Russia's central Ural Mountains. The shockwave from the blinding fireball injured 1,200 people and damaged thousands buildings in six. Scientists at the US space agency NASA estimated that the amount of energy released in the atmosphere was about 30 times greater than that of the nuclear bomb dropped on the Japanese city of Hiroshima during World War II. NASA stated that an event of this magnitude is expected to occur on average once every 100 years. Risk Frontiers Briefing Note 249 page 1

2 Figure 1 - The meteor as it approaches Earth. Image Credit: AP/Nasha Gazeta Figure 2 - Meteor impact area in Chelyabinsk. Image credit: Google Earth, NASA/JPL-Caltech. Risk Frontiers Briefing Note 249 page 2

3 Unrelated to the 2012 DA14 asteroid flyby The meteor hit just as the world braced for a close encounter with a large asteroid that was to pass by earth, as close at 17,150 miles. Reaching a width of 150 feet (~46 metres) the 2012 DA14 asteroid is one of the largest known asteroids to approach the planet. According to the European Space Agency there is no connection between the asteroid and the meteor that hit Russia. NASA stated that the trajectory of the Russia meteor was significantly different from the trajectory of asteroid 2012 DA14, making it a completely unrelated object. DA14 was not expected to be perceptible to the naked eye, though it was expected to be visible from Asia, Eastern Europe and Australia with the aid of binoculars. On average, objects of this size pass this close to Earth once every 40 years, and strike the planet once every 1,200 years. The last time an object of a size similar to DA14 hit the earth was also in Russia, and is known as the Tunguska event. In June 1908, the asteroid, which was estimated at 100 meters in diameter, burst in the air over the Podkamennaya Tunguska River, in Russia s Krasnoyarsk Krai region. It was the largest such hit in recorded history. A description of its impact is described further below and in Risk Frontiers Briefing Note 161, July Figure 3 - A graphic comparing the Russian meteor with the 2012 DA14 asteroid. Note some measurements have since been updated (National Post). Risk Frontiers Briefing Note 249 page 3

4 Size and fragments of the Chebarkul Meteor Reports from NASA state that the estimated size of the meteor that hit Russia on Friday, prior to entering Earth's atmosphere, has been revised to 55 feet (17 metres), and its estimated mass has increased to 10,000 tons. The infrasound data indicates that the event, from atmospheric entry to the meteor's airborne disintegration took 32.5 seconds. The meteor was travelling at 46,000 mph when it hit the Earth's atmosphere and exploded, according to new data from Paul Abell at the Johnson Space Center. It exploded in the atmosphere because its composition is stony, rather than metallic, like the meteor that left a massive crater in Arizona, Abell said. Over the weekend, scientists collected 53 tiny pieces of dark porous material that were recovered by local residents near Chebarkul Lake, 100 kilometres west of Chelyabinsk. The biggest piece was 7 millimetres long. The meteorite pieces collected by scientists were described as bits of a chondrite, a type of stony meteorite. They contain at least 10 per cent metallic iron and nickel alloy as well as chrysolite and sulfite. Scientists plan to search the lake again for larger pieces of the meteorite and if found plan to name the meteorite Chebarkul, after the lake. Not everyone who has found pieces is turning them in, however. Apparently some enterprising locals were offering what they claimed to be fresh meteorite pieces for sale online for as much as $10,000 apiece. This has sparked a "meteorite rush" around the industrial city of Chelyabinsk. Damage Building Most of the damage was caused by the shock waves as the meteor broke up in the atmosphere. The force of the explosion was enough to shatter dishes, televisions, and windows. The explosion is estimated to have shattered more than 1 million square feet of glass. Preliminary reports suggest that more than 3,000 homes and businesses sustained damage from broken glass and cracked walls, including regular households, hospitals, schools and a zinc factory where part of the roof collapsed. It has been reported that 30 per cent of the windows shattered by shockwaves that rocked that part of the country, where temperatures on Saturday dipped to -20C, have already been repaired. The remaining windows will be repaired over the next week, except for some large ones built in the Soviet era that will require weeks to fix. The building most seriously damaged by the shockwaves was the Chelyabinsk ice rink. Injuries The unpredicted meteor strike ground traffic to a halt in the industrial city of Chelyabinsk as residents poured out on the streets to watch the light show before hovering for safety when a sonic boom rang out directly overhead. Local authorities estimate that 1200 people were injured, most of them by flying glass. Authorities cancelled school and asked residents to stay indoors. Doctors said some Risk Frontiers Briefing Note 249 page 4

5 sustained more serious wounds from doors that were blasted off hinges and ceiling collapses. About 50 people were recovering in hospitals early Saturday. Insurance In many countries with developed insurance markets, a comprehensive multi-peril insurance policy generally will cover all risks that are not specifically excluded, meaning that meteorite damage would generally be covered. The dwelling portion of the homeowner policy is very broad and if damage from falling objects is not listed in the exclusions, it is generally covered. Russian authorities estimate the meteor that exploded in the sky over the Ural Mountains region caused more than $US30 million ($A29.12 million) in damage. "Around 100,000 homeowners were affected (by Friday's incident). The damage is estimated at more than 1 billion rubles ($US30 million)," the governor of the central Russian region of Chelyabinsk, Mikhail Yurevich, said at a press conference. The latest update is regional officials believe the damage from the explosion could cost as much as $33 million dollars to repair, while others expect this figure to rise. The Tunguska Meteor of 30 June 1908 Before the Chebarkul Meteor of 15 February 2012, the only large meteoroid impact for which modern accounts existed was the June 30, 1908 Tunguska event. The following account of the event is taken from ScienceDaily, July 1, 2008, which was adapted from materials provided by the original article was written by Dr. Tony Phillips. The Tunguska event razed the Siberian forest over an area of 800 square miles. The year is 1908, and it's just after seven in the morning. A man is sitting on the front porch of a trading post at Vanavara in Siberia. Little does he know, in a few moments, he will be hurled from his chair and the heat will be so intense he will feel as though his shirt is on fire. That's how the Tunguska event felt 40 miles from ground zero. June 30, 2008, is the 100th anniversary of that ferocious impact near the Podkamennaya Tunguska River in remote Siberia--and after 100 years, scientists are still talking about it. "If you want to start a conversation with anyone in the asteroid business all you have to say is Tunguska," says Don Yeomans, manager of the Near-Earth Object Office at NASA's Jet Propulsion Laboratory. "It is the only entry of a large meteoroid we have in the modern era with first-hand accounts." While the impact occurred in '08, the first scientific expedition to the area would have to wait for 19 years. In 1921, Leonid Kulik, the chief curator for the meteorite collection of the St. Petersburg museum led an expedition to Tunguska. But the harsh conditions of the Siberian outback thwarted his team's attempt to reach the area of the blast. In 1927, a new expedition, again lead by Kulik, reached its goal. "At first, the locals were reluctant to tell Kulik about the event," said Yeomans. "They believed the blast was a visitation by the god Ogdy, who had cursed the area by smashing Risk Frontiers Briefing Note 249 page 5

6 trees and killing animals." While testimonials may have at first been difficult to obtain, there was plenty of evidence lying around. Eight hundred square miles of remote forest had been ripped asunder. Eighty million trees were on their sides, lying in a radial pattern. "Those trees acted as markers, pointing directly away from the blast's epicenter," said Yeomans. "Later, when the team arrived at ground zero, they found the trees there standing upright but their limbs and bark had been stripped away. They looked like a forest of telephone poles." Such debranching requires fast moving shock waves that break off a tree's branches before the branches can transfer the impact momentum to the tree's stem. Thirty seven years after the Tunguska blast, branchless trees would be found at the site of another massive explosion Hiroshima, Japan. Kulik's expeditions (he traveled to Tunguska on three separate occasions) did finally get some of the locals to talk. One was the man based at the Vanara trading post who witnessed the heat blast as he was launched from his chair. His account: Suddenly in the north sky the sky was split in two, and high above the forest the whole northern part of the sky appeared covered with fire At that moment there was a bang in the sky and a mighty crash The crash was followed by a noise like stones falling from the sky, or of guns firing. The earth trembled. The massive explosion packed a wallop. The resulting seismic shockwave registered with sensitive barometers as far away as England. Dense clouds formed over the region at high altitudes which reflected sunlight from beyond the horizon. Night skies glowed, and reports came in that people who lived as far away as Asia could read newspapers outdoors as late as midnight. Locally, hundreds of reindeer, the livelihood of local herders, were killed, but there was no direct evidence that any person perished in the blast. "A century later some still debate the cause and come up with different scenarios that could have caused the explosion," said Yeomans. "But the generally agreed upon theory is that on the morning of June 30, 1908, a large space rock, about 120 feet across, entered the atmosphere of Siberia and then detonated in the sky." It is estimated the asteroid entered Earth's atmosphere traveling at a speed of about 33,500 miles per hour. During its quick plunge, the 220-million-pound space rock heated the air surrounding it to 44,500 degrees Fahrenheit. At 7:17 a.m. (local Siberia time), at a height of about 28,000 feet, the combination of pressure and heat caused the asteroid to fragment and annihilate itself, producing a fireball and releasing energy equivalent to about 185 Hiroshima bombs. "That is why there is no impact crater," said Yeomans. "The great majority of the asteroid is consumed in the explosion." Yeomans and his colleagues at JPL's Near-Earth Object Office are tasked with plotting the orbits of present-day comets and asteroids that cross Earth's path, and could be potentially hazardous to our planet. Yeomans estimates that, on average, a Tunguska-sized asteroid will enter Earth's atmosphere once every 300 years. Risk Frontiers Briefing Note 249 page 6

7 Time for future meteor impact defence plans? The Russian meteor explosion appears to be one of the most stunning cosmic events above Russia since the 1908 Tunguska Event in which a massive blast most scientists blame on an asteroid or a comet ripped through Siberia. This event alongside the 2012 DA14 asteroid passing by earth has sent off alarm bells ringing in some Russian circles about this being the time for joint global action on the space safety front. ``Instead of fighting on Earth, people should be creating a joint system of asteroid defence,'' the Russian parliament's foreign affairs committee chief Alexei Pushkov wrote on his Twitter account late Friday. "Instead of creating a (military) European space defence system, the United States should join us and China in creating the AADS - the Anti- Asteroid Defence System,'' the close ally of President Vladimir Putin wrote. The last meteorite strike was recorded in Sudan in Astronomers spotted a meteor heading toward Earth about 20 hours before it entered the atmosphere. It exploded over the vast African nation, but caused no known injuries. Hundreds of smaller meteorites strike the Earth s surface every year, although only 10 to 20 are detected. Such meteorites usually reach the surface having been burned down by the atmosphere and are too small to cause damage. Risk Frontiers Briefing Note 249 page 7

8 Global meteor impact locations: Figure 4 - Every meteorite fall on earth mapped or at least those we know about. These impact zones show where scientists have found meteorites, or the impact craters of meteorites, some dating back as far as the year 2,300BC. The data is from the US Meteorological Society and doesn't show those places where meteorites may have fallen but not been discovered (Guardian News and Media Limited 2013). Risk Frontiers Briefing Note 249 page 8

9 Figure 5 - Close up of impacts zones found in Australia. Interesting cluster in Southern Australia (Guardian News and Media Limited 2013). Risk Frontiers Briefing Note 249 page 9

Asteroids: Introduction

Asteroids: Introduction Asteroids: Introduction Name Read through the information below. Then complete the Fill-Ins at the bottom of page. Asteroids are rocky objects that orbit the Sun in our solar system. Also known as minor

More information

Chapter 3 Checkpoint 3.1 Checkpoint 3.2 Venn Diagram: Planets versus Asteroids Checkpoint 3.3 Asteroid Crashes the Moon?

Chapter 3 Checkpoint 3.1 Checkpoint 3.2 Venn Diagram: Planets versus Asteroids Checkpoint 3.3 Asteroid Crashes the Moon? Chapter 3 Checkpoint 3.1 Which characteristics are true of both planets and asteroids? a) They are approximately spherical in shape. b) There are thousands of examples. c) They formed 1 to 2 billion years

More information

Unit 12 Lesson 1 What Objects Are Part of the Solar System?

Unit 12 Lesson 1 What Objects Are Part of the Solar System? Unit 12 Lesson 1 What Objects Are Part of the Solar System? The Solar System Earth, other planets, and the moon are part of a solar system. A solar system is made up of a star and the planets and other

More information

Unit 2 Lesson 1 What Objects Are Part of the Solar System? Copyright Houghton Mifflin Harcourt Publishing Company

Unit 2 Lesson 1 What Objects Are Part of the Solar System? Copyright Houghton Mifflin Harcourt Publishing Company Unit 2 Lesson 1 What Objects Are Part of the Solar System? Florida Benchmarks SC.5.E.5.2 Recognize the major common characteristics of all planets and compare/contrast the properties of inner and outer

More information

The trajectory, structure and origin of the Chelyabinsk asteroidal impactor

The trajectory, structure and origin of the Chelyabinsk asteroidal impactor The trajectory, structure and origin of the Chelyabinsk asteroidal impactor Jiří Borovička Astronomical Institute, Academy of Sciences, Ondřejov, Czech Republic with the help of O. Popova(Moscow) and P.

More information

Venus Transits Sun for Last Time This Century

Venus Transits Sun for Last Time This Century 4 June 2012 MP3 at voaspecialenglish.com Venus Transits Sun for Last Time This Century JUNE SIMMS: This is SCIENCE IN THE NEWS, in VOA Special English. I m June Simms. SHIRLEY GRIFFITH: And I m Shirley

More information

Chapter 9 Remnants of Rock and Ice. Asteroids, Comets, and Pluto

Chapter 9 Remnants of Rock and Ice. Asteroids, Comets, and Pluto Chapter 9 Remnants of Rock and Ice Asteroids, Comets, and Pluto 9.1 Asteroids and Meteorites Our Goals for Learning Why is there an asteroid belt? How are meteorites related to asteroids? Asteroid Facts

More information

Finding Impact Craters with Landsat

Finding Impact Craters with Landsat Name Finding Impact Craters with Landsat Known Effects of Impact Events When an object from space hits the Earth, here is what can happen. There's a huge explosion. The impact makes a big hole or crater

More information

Solar System Debris. Asteroids 11/28/2010. Large rocky debris orbiting the Sun. Ceres, the largest asteroid. Discovering Asteroids

Solar System Debris. Asteroids 11/28/2010. Large rocky debris orbiting the Sun. Ceres, the largest asteroid. Discovering Asteroids Solar System Debris Material leftover from the formation of the Solar System Gives important clues about its origin Composition: Asteroids and Meteoroids: rock and iron Comets: ice and dust The basic building

More information

Chapter 9 Part 2 Dwarf Planets and Impacts

Chapter 9 Part 2 Dwarf Planets and Impacts Pluto s Orbit Chapter 9 Part 2 Dwarf Planets and Impacts Pluto s orbit is tilted and significantly elliptical. Neptune orbits three times during the time Pluto orbits twice resonance prevents a collision.

More information

Small Bodies in our Solar System. Comets, Asteroids & Meteoroids

Small Bodies in our Solar System. Comets, Asteroids & Meteoroids Small Bodies in our Solar System Comets, Asteroids & Meteoroids * A Small Body is any object in the solar system that is smaller than a planet or moon, such as a comet, an asteroid, or a meteoroid. Compiled

More information

Today. Events. asteroids, meteorites, comets. Homework 5 Due. things that go bump. Thanksgiving next week. Exam III - Dec. 7

Today. Events. asteroids, meteorites, comets. Homework 5 Due. things that go bump. Thanksgiving next week. Exam III - Dec. 7 Today asteroids, meteorites, comets things that go bump Events Homework 5 Due Thanksgiving next week Exam III - Dec. 7 Lots of small asteroids number A few big asteroids apparent brightness Asteroids are

More information

Nibiru Is Not Here Yet

Nibiru Is Not Here Yet Nibiru Is Not Here Yet The title says it all. Do not be fooled, any photos of the sun that show a bright object near to the sun is either a lens artifact caused by internal reflection of light in the camera

More information

Two significant figures are enough! You can round your calculations to 2 significant figures. Hopefully this will prevent some of the sloppy

Two significant figures are enough! You can round your calculations to 2 significant figures. Hopefully this will prevent some of the sloppy Homework Issues Two significant figures are enough! You can round your calculations to 2 significant figures. Hopefully this will prevent some of the sloppy mistakes. The speed of light is 299,792,458

More information

What effect do they have?

What effect do they have? Exploring Meteorite Mysteries Lesson 16 Near Miss Objectives apply science to daily life as they simulate possible responses to a meteorite impact. produce articles for a newspaper. role-play in a panel

More information

Write five things (key words only) onto the word wheel that you think of when you read the words space station. Space station

Write five things (key words only) onto the word wheel that you think of when you read the words space station. Space station 1 Warmer Write five things (key words only) onto the word wheel that you think of when you read the words space station. Space station 2 Share your ideas in class. Key words ill the gaps in the sentences

More information

Astronomy Unit Notes Name:

Astronomy Unit Notes Name: Astronomy Unit Notes Name: (DO NOT LOSE!) To help with the planets order 1 My = M 2 V = Venus 3 Eager = E 4 M = Mars 5 Just = J 6 Served = Saturn 7 Us = Uranus 8 N = N 1 Orbit: The path (usually elliptical)

More information

known since prehistoric times almost 10 times larger than Jupiter

known since prehistoric times almost 10 times larger than Jupiter Mercury Venus Earth Mars Jupiter Saturn Uranus Neptune 40.329407-74.667345 Sun Mercury Length of rotation Temperature at surface 8 official planets large number of smaller objects including Pluto, asteroids,

More information

Figure 19.19: HST photo called Hubble Deep Field.

Figure 19.19: HST photo called Hubble Deep Field. 19.3 Galaxies and the Universe Early civilizations thought that Earth was the center of the universe. In the sixteenth century, we became aware that Earth is a small planet orbiting a medium-sized star.

More information

The Little Things. Today. Rings, meteorites. Asteroids & Comets. Dwarf Planets Events. Homework 5. Due

The Little Things. Today. Rings, meteorites. Asteroids & Comets. Dwarf Planets Events. Homework 5. Due Today The Little Things Rings, meteorites Asteroids & Comets Dwarf Planets Events Homework 5 Due geysers on Triton Rocky Planets versus Icy Moons Rock melts at higher temperatures. Only large rocky planets

More information

Astronomy A BEGINNER S GUIDE TO THE UNIVERSE EIGHTH EDITION

Astronomy A BEGINNER S GUIDE TO THE UNIVERSE EIGHTH EDITION Astronomy A BEGINNER S GUIDE TO THE UNIVERSE EIGHTH EDITION CHAPTER 4 The Solar System Lecture Presentation 4.0 What can be seen with the naked eye? Early astronomers knew about the Sun, Moon, stars, Mercury,

More information

Read each slide then use the red or some underlined words to complete the organizer.

Read each slide then use the red or some underlined words to complete the organizer. Read each slide then use the red or some underlined words to complete the organizer. 1B Did it start as a bang! 1B The Expanding Universe A. The Big Bang Theory: Idea that all matter began in an infinitely

More information

Solar System Junk however, a large number of bodies were left over as Junk or the debris of planet building

Solar System Junk however, a large number of bodies were left over as Junk or the debris of planet building Solar System Junk So far, we ve taken a brief look at the 8 planets of the solar system, their array of moons or natural satellites, and how we think such a system formed. Most of the material in the solar

More information

STUDENT RESOURCE 1.1 INFORMATION SHEET. Vocabulary

STUDENT RESOURCE 1.1 INFORMATION SHEET. Vocabulary Vocabulary STUDENT RESOURCE 1.1 INFORMATION SHEET asteroids thousands of rocky objects that orbit the Sun Most asteroids orbit in a belt between the orbits of Mars and Jupiter. More than 9, asteroids have

More information

NASA's Juno spacecraft prepares for cosmic date with Jupiter (Update) 4 July 2016, by Alicia Chang

NASA's Juno spacecraft prepares for cosmic date with Jupiter (Update) 4 July 2016, by Alicia Chang NASA's Juno spacecraft prepares for cosmic date with Jupiter (Update) 4 July 2016, by Alicia Chang Jim Green, director, Planetary Science Division, NASA, left, talks during a media briefing joined by Scott

More information

Our Universe: Creation, Galaxies, Stars and Celestial Objects

Our Universe: Creation, Galaxies, Stars and Celestial Objects Our Universe: Creation, Galaxies, Stars and Celestial Objects Big Bang Theory Our universe began with one huge exploding atom that relapsed all the energy and matter that exists in the universe today.

More information

TELESCOPES. How do they work?

TELESCOPES. How do they work? TELESCOPES How do they work? There are two types of Telescopes Refractor telescopes They use glass lenses Reflector telescopes They use mirrors and lenses Parts of a Telescope Tube - a long tube, made

More information

THE EFFECTS OF A NUCLEAR BLAST

THE EFFECTS OF A NUCLEAR BLAST THE EFFECTS OF A NUCLEAR BLAST A nuclear explosion releases vast amounts of energy in three forms: 1) light and heat 2) blast 3) radiation The amount of energy released depends upon the size and design

More information

Ch 23 Touring Our Solar System 23.1 The Solar System 23.2 The Terrestrial Planet 23.3 The Outer Planets 23.4 Minor Members of the Solar System

Ch 23 Touring Our Solar System 23.1 The Solar System 23.2 The Terrestrial Planet 23.3 The Outer Planets 23.4 Minor Members of the Solar System Ch 23 Touring Our Solar System 23.1 The Solar System 23.2 The Terrestrial Planet 23.3 The Outer Planets 23.4 Minor Members of the Solar System Ch 23.1 The Solar System Terrestrial planets- Small Rocky

More information

The Outer Planets. Video Script: The Outer Planets. Visual Learning Company

The Outer Planets. Video Script: The Outer Planets. Visual Learning Company 11 Video Script: 1. For thousands of years people have looked up at the night sky pondering the limits of our solar system. 2. Perhaps you too, have looked up at the evening stars and planets, and wondered

More information

~15 GA. (Giga Annum: Billion Years) today

~15 GA. (Giga Annum: Billion Years) today ~15 GA (Giga Annum: Billion Years) today ~ 300,000 years after the Big Bang The first map of the Universe. Not homogeneous. Cosmic microwave background (CMB) anisotropy. First detected by the COBE DMR

More information

The Cosmic Perspective Seventh Edition. Asteroids, Comets, and Dwarf Planets: Their Nature, Orbits, and Impacts. Chapter 12 Lecture

The Cosmic Perspective Seventh Edition. Asteroids, Comets, and Dwarf Planets: Their Nature, Orbits, and Impacts. Chapter 12 Lecture Chapter 12 Lecture The Cosmic Perspective Seventh Edition Asteroids, Comets, and Dwarf Planets: Their Nature, Orbits, and Impacts Asteroids, Comets, and Dwarf Planets: Their Nature, Orbits, and Impacts

More information

By Helen and Mark Warner

By Helen and Mark Warner By Helen and Mark Warner Teaching Packs - Space - Page 1 In this section, you will learn about... 1. About the objects in the Solar System. 2. How the Solar System formed. 3. About the Asteroid Belt, Kuiper

More information

Contents of the Solar System

Contents of the Solar System The Solar System Contents of the Solar System Sun Planets 9 known (now: 8) Mercury, Venus, Earth, Mars ( Terrestrials ) Jupiter, Saturn, Uranus, Neptune ( Jovians ) Pluto (a Kuiper Belt object?) Natural

More information

Earth & Space. Learning Target:

Earth & Space. Learning Target: Earth & Space Learning Target: Most of the cycles and patterns of motion between the Earth and sun are predictable. You understand this when you know: 1) 1 Revolution of the Earth takes approximately 365

More information

37. Planetary Geology p

37. Planetary Geology p 37. Planetary Geology p. 656-679 The Solar System Revisited We will now apply all the information we have learned about the geology of the earth to other planetary bodies to see how similar, or different,

More information

Astronomy 150: Killer Skies Lecture 6, January 30

Astronomy 150: Killer Skies Lecture 6, January 30 Astronomy 150: Killer Skies Lecture 6, January 30 Last time: Meteors Today: Asteroids and Comets Homework: HW 1 last chance! cutoff at 5pm today. HW 2 due this Friday at 1pm http://near.jhuapl.edu/iod/20000222/20000222.jpg

More information

Asteroids. Titius-Bode Law (1766) updated May 16, Orbit of 1 Ceres. Ceres Discovered Structure of Ceres. Ceres (Hubble Space Telescope)

Asteroids. Titius-Bode Law (1766) updated May 16, Orbit of 1 Ceres. Ceres Discovered Structure of Ceres. Ceres (Hubble Space Telescope) Asteroids Titius-Bode Law (1766) 2 The distances between the planets gets bigger as you go out. Johann Daniel Titius ( 1729 1796) Johann Elert Bode (1747-1826) updated May 16, 2013 Titius & Bode came up

More information

5/3/17. Extinction of the Dinosaurs. Extinction of Dinosaurs - Causes. #40 Meteorite Impacts III - Dinosaur Extinction, Future Risk, Mitigation

5/3/17. Extinction of the Dinosaurs. Extinction of Dinosaurs - Causes. #40 Meteorite Impacts III - Dinosaur Extinction, Future Risk, Mitigation Paper Scores are posted Please check grades Web Exercise #6 LATE; was Due by 1 pm, Monday 5/1 There is a 2-point penalty for every 24-hour period the assignment is late. No Web Exercise #6 will be accepted

More information

Earth s Formation Unit [Astronomy] Student Success Sheets (SSS)

Earth s Formation Unit [Astronomy] Student Success Sheets (SSS) Page1 Earth s Formation Unit [Astronomy] Student Success Sheets (SSS) HS-ESSI-1; HS-ESS1-2; HS-ESS1-3; HS-ESSI-4 NGSS Civic Memorial High School - Earth Science A Concept # What we will be learning Mandatory

More information

4 Decoding the Arecibo Message

4 Decoding the Arecibo Message 4 Decoding the Arecibo Message In 1974, the Arecebo radio telescope was used to send a message into space. The message was directed at the globular cluster M13, which is an assembly of hundreds of thousands

More information

What is Nuclear Winter?

What is Nuclear Winter? Nuclear Winter What is Nuclear Winter? Prediction by some scientists that smoke and debris rising from massive fires of a nuclear war could block sunlight for weeks or months, cooling the earth's surface

More information

8.11 Satellites. Figure 1 Artifi cial satellites provide valuable monitoring and communication services for humankind.

8.11 Satellites. Figure 1 Artifi cial satellites provide valuable monitoring and communication services for humankind. 8.11 Satellites As you know, Earth has one natural satellite orbiting it the Moon. Earth also has thousands of other satellites circling it at different altitudes and orbits, but these are all made by

More information

ALL ABOUT THE PLANETS

ALL ABOUT THE PLANETS Venus Earth Mercury Mars ALL ABOUT THE PLANETS and a few other things By:James Cooper Elsberry Jupiter Saturn Uranus Neptune Mercury First I will start off with Mercury. Mercury is extremely difficult

More information

The Sun. - this is the visible surface of the Sun. The gases here are very still hot, but much cooler than inside about 6,000 C.

The Sun. - this is the visible surface of the Sun. The gases here are very still hot, but much cooler than inside about 6,000 C. Name: The Sun The Sun is an average sized. Earth, Mars, Jupiter and Uranus are. A star is the only object in space that makes its own. This includes and. The sun is about million miles from Earth. This

More information

Which graph best shows the relationship between intensity of insolation and position on the Earth's surface? A) B) C) D)

Which graph best shows the relationship between intensity of insolation and position on the Earth's surface? A) B) C) D) 1. The hottest climates on Earth are located near the Equator because this region A) is usually closest to the Sun B) reflects the greatest amount of insolation C) receives the most hours of daylight D)

More information

IN VEHICLES: Do not try to outrun a tornado. Abandon your vehicle and hide in a nearby ditch or depression and cover your head.

IN VEHICLES: Do not try to outrun a tornado. Abandon your vehicle and hide in a nearby ditch or depression and cover your head. TORNADO SAFETY TORNADO! The very word strikes fear in many people. While a tornado is perhaps nature's most destructive storm, deaths and injuries can be prevented. By following Tornado Safety Rules, lives

More information

2. The site mentions that a potential asteroid impact can change its Torino scale value. Give two reasons why such a change may occur.

2. The site mentions that a potential asteroid impact can change its Torino scale value. Give two reasons why such a change may occur. Astronomy 101 Name(s): Lab 7: Impacts! On June 30, 1908, a low-density 80-meter diameter asteroid entered the atmosphere above Tunguska, Siberia and generated a shock wave that flattened millions of trees

More information

Greeks watched the stars move across the sky and noticed five stars that wandered around and did not follow the paths of the normal stars.

Greeks watched the stars move across the sky and noticed five stars that wandered around and did not follow the paths of the normal stars. Chapter 23 Our Solar System Our Solar System Historical Astronomy Wandering Stars Greeks watched the stars move across the sky and noticed five stars that wandered around and did not follow the paths of

More information

Name Date. Directions: Match the vocabulary terms on the left with the definitions on the right.

Name Date. Directions: Match the vocabulary terms on the left with the definitions on the right. Name Date Directions: Match the vocabulary terms on the left with the definitions on the right. Terms Definitions 1. black hole a. the point in the sky that is directly over the head of the observer. 2.

More information

The Solar System. Name Test Date Hour

The Solar System. Name Test Date Hour Name Test Date Hour Astronomy#3 - Notebook The Solar System LEARNING TARGETS I can describe the objects that make up our solar system. I can identify the inner and outer planets. I can explain the difference

More information

What s in our solar system?

What s in our solar system? What s in our solar system? *Sun *Planets Terrestrial Jovian Dwarf Smaller objects *Meteoroids *Comets Dust http://www.techastronomy.com/userfiles/2007/7/22/solar_system4(1).jpg *Sun a. Most of mass (>99%)

More information

Unit 3 Lesson 6 Small Bodies in the Solar System. Copyright Houghton Mifflin Harcourt Publishing Company

Unit 3 Lesson 6 Small Bodies in the Solar System. Copyright Houghton Mifflin Harcourt Publishing Company Florida Benchmarks SC.8.N.1.1 Define a problem from the eighth grade curriculum using appropriate reference materials to support scientific understanding, plan and carry out scientific investigations of

More information

Climate versus Weather

Climate versus Weather Climate versus Weather What is climate? Climate is the average weather usually taken over a 30-year time period for a particular region and time period. Climate is not the same as weather, but rather,

More information

Learning About Our Solar System

Learning About Our Solar System Learning About Our Solar System By debbie Routh COPYRIGHT 2004 Mark Twain Media, Inc. ISBN 978-1-58037-876-5 Printing No. 404007-EB Mark Twain Media, Inc., Publishers Distributed by Carson-Dellosa Publishing

More information

Earthquakes. These icons indicate that teacher s notes or useful web addresses are available in the Notes Page.

Earthquakes. These icons indicate that teacher s notes or useful web addresses are available in the Notes Page. Earthquakes These icons indicate that teacher s notes or useful web addresses are available in the Notes Page. This icon indicates the slide contains activities created in Flash. These activities are not

More information

Directed Reading. Section: Viewing the Universe THE VALUE OF ASTRONOMY. Skills Worksheet. 1. How did observations of the sky help farmers in the past?

Directed Reading. Section: Viewing the Universe THE VALUE OF ASTRONOMY. Skills Worksheet. 1. How did observations of the sky help farmers in the past? Skills Worksheet Directed Reading Section: Viewing the Universe 1. How did observations of the sky help farmers in the past? 2. How did observations of the sky help sailors in the past? 3. What is the

More information

SU230R Grades 4-8. Hayes FAST FACTS & DAZZLING DATA OUR SOLAR SYSTEM

SU230R Grades 4-8. Hayes FAST FACTS & DAZZLING DATA OUR SOLAR SYSTEM Hayes SU230R Grades 4-8 FAST FACTS & DAZZLING DATA OUR SOLAR SYSTEM Fast Facts & Dazzling Data Our Solar System This book was developed for Hayes School Publishing Co., Inc. by Good Neighbor Press, Inc.,

More information

Chapter: Earthquakes and Volcanoes

Chapter: Earthquakes and Volcanoes Table of Contents Chapter: Earthquakes and Volcanoes Section 1: Earthquakes Section 2: Volcanoes Section 3: Earthquakes, Volcanoes, and Plate Tectonics 1 Earthquakes What causes earthquakes? Elastic Rebound

More information

What is out there? 25/01/2016 cgrahamphysics.com Book page Syllabus

What is out there? 25/01/2016 cgrahamphysics.com Book page Syllabus What is out there? Book page 49 55 Syllabus 1.32 1.36 Starter How many stars are there in the solar system? What is the solar system made up of? What is the Universe made up off? Whenever life gets you

More information

Stations. MUSEUM of the MOUNTAIN MAN. Presented By. 9:00AM - 5:00PM May 1 - October 31 Fremont Lake Road Pinedale, WY

Stations. MUSEUM of the MOUNTAIN MAN. Presented By. 9:00AM - 5:00PM May 1 - October 31 Fremont Lake Road Pinedale, WY Solar Stations Presented By MUSEUM of the MOUNTAIN MAN 9:00AM - 5:00PM May 1 - October 31 Fremont Lake Road Pinedale, WY List of Activities Station #1: Plate and Coin Demonstrate how the sun and moon appear

More information

Natural Disasters. Why Are There Earthquakes? 197 words. The Power of the Earth 221 words. Big Waves! 188 words

Natural Disasters. Why Are There Earthquakes? 197 words. The Power of the Earth 221 words. Big Waves! 188 words ARTICLE-A-DAY Natural Disasters 6 Articles Check articles you have read: Why Are There Earthquakes? 197 words The Power of the Earth 221 words Big Waves! 188 words The Volcano That Keeps Erupting 228 words

More information

JAMES: HEY THERE STAR GAZERS. I'M JAMES ALBURY, DIRECTOR OF THE KIKA SILVA PLA PLANETARIUM IN GAINESVILLE, FLORIDA.

JAMES: HEY THERE STAR GAZERS. I'M JAMES ALBURY, DIRECTOR OF THE KIKA SILVA PLA PLANETARIUM IN GAINESVILLE, FLORIDA. STAR GAZERS SG 1745 5-MINUTE "THE LEONID METEOR SHOWER" HEY THERE STAR GAZERS. I'M JAMES ALBURY, DIRECTOR OF THE KIKA SILVA PLA PLANETARIUM IN GAINESVILLE, FLORIDA. AND I'M DEAN REGAS, ASTRONOMER FOR THE

More information

Welcome to Physics 107

Welcome to Physics 107 Welcome to Physics 107 Ideas of Modern Physics Physics for Future Presidents 1 What scares us? Radioactivity in the basement Being hit by lightning Terrorist dirty bomb Return of the Ice Age Global warming

More information

Images of Planets 11/18/08. Cassini Movie

Images of Planets 11/18/08. Cassini Movie Announce: Look at Essay 4 for next week Thursday is Einstein Movie Images of Planets Cassini Movie Review of Ch. 9 Ch. 10 Errors in Crab Lab. 11/18/08 Images of Planets Cassini Movie Ch. 9 Questions Second

More information

Astronomy Study Guide Answer Key

Astronomy Study Guide Answer Key Astronomy Study Guide Answer Key Section 1: The Universe 1. Cosmology is the study of how the universe is arranged. 2. Identify the type of cosmology a. The sun is the center of the Universe Heliocentric

More information

The Solar System CHAPTER 6. Vocabulary. star an object in space that makes its own light and heat. moon an object that circles around a planet

The Solar System CHAPTER 6. Vocabulary. star an object in space that makes its own light and heat. moon an object that circles around a planet CHAPTER 6 The Solar System Vocabulary star an object in space that makes its own light and heat moon an object that circles around a planet Sun astronomical unit the distance between Earth and the Sun

More information

Star. Planet. Chapter 1 Our Place in the Universe. 1.1 A Modern View of the Universe Our goals for learning: What is our place in the universe?

Star. Planet. Chapter 1 Our Place in the Universe. 1.1 A Modern View of the Universe Our goals for learning: What is our place in the universe? Chapter 1 Our Place in the Universe 1.1 A Modern View of the Universe Our goals for learning: What is our place in the universe? How did we come to be? How can we know what the universe was like in the

More information

The Earth in the Universe

The Earth in the Universe The Earth in the Universe (OCR) Evidence for the age of the Earth Scientists once thought that the Earth was only 6000 years old. Rocks have provided lots of evidence for the world being older. 1) Erosion

More information

Edmonds Community College ASTRONOMY 100 Sample Test #2 Fall Quarter 2006

Edmonds Community College ASTRONOMY 100 Sample Test #2 Fall Quarter 2006 Edmonds Community College ASTRONOMY 100 Sample Test #2 Fall Quarter 2006 Instructor: L. M. Khandro 10/19/06 Please Note: the following test derives from a course and text that covers the entire topic of

More information

Near Earth Objects and Past Impacts

Near Earth Objects and Past Impacts Near Earth Objects and Past Impacts Part 1: NEO Impacts A very large number of meteoroids enter the Earth's atmosphere each day amounting to more than a hundred tons of material. But they are almost all

More information

Write five things (key words only) onto the word wheel that you think of when you read the words space station. Space station

Write five things (key words only) onto the word wheel that you think of when you read the words space station. Space station 1 Warmer Write five things (key words only) onto the word wheel that you think of when you read the words space station. Space station 2 Share your ideas in class. Key words ill the gaps in the sentences

More information

1star 1 star 9 8 planets 63 (major) moons asteroids, comets, meteoroids

1star 1 star 9 8 planets 63 (major) moons asteroids, comets, meteoroids The Solar System 1star 1 star 9 8 planets 63 (major) moons asteroids, comets, meteoroids The distances to planets are known from Kepler s Laws (once calibrated with radar ranging to Venus) How are planet

More information

A Science A Z Earth Series Word Count: 1,239. Written by David Dreier. Visit

A Science A Z Earth Series Word Count: 1,239. Written by David Dreier. Visit A Science A Z Earth Series Word Count: 1,239 Written by David Dreier Visit www.sciencea-z.com www.sciencea-z.com Key elements Used in This Book The Big Idea: Learning about our solar system can give students

More information

1UNIT. The Universe. What do you remember? Key language. Content objectives

1UNIT. The Universe. What do you remember? Key language. Content objectives 1UNIT The Universe What do you remember? What are the points of light in this photo? What is the difference between a star and a planet? a moon and a comet? Content objectives In this unit, you will Learn

More information

A) usually less B) dark colored and rough D) light colored with a smooth surface A) transparency of the atmosphere D) rough, black surface

A) usually less B) dark colored and rough D) light colored with a smooth surface A) transparency of the atmosphere D) rough, black surface 1. Base your answer to the following question on the diagram below which shows two identical houses, A and B, in a city in North Carolina. One house was built on the east side of a factory, and the other

More information

A supernova is the explosion of a star. It is the largest explosion that takes place in space.

A supernova is the explosion of a star. It is the largest explosion that takes place in space. What is a supernova? By NASA, adapted by Newsela staff on 03.28.17 Word Count 974 Level 1110L TOP: A vivid view of a supernova remnant captured by NASA's Spitzer and Chandra space observatories and the

More information

UNIT 3: Chapter 8: The Solar System (pages )

UNIT 3: Chapter 8: The Solar System (pages ) CORNELL NOTES Directions: You must create a minimum of 5 questions in this column per page (average). Use these to study your notes and prepare for tests and quizzes. Notes will be turned in to your teacher

More information

Chapter 26 Section 1 pages Directed Reading Section: Viewing the Universe

Chapter 26 Section 1 pages Directed Reading Section: Viewing the Universe Name: Period: Chapter 26 Section 1 pages 659-666 Directed Reading Section: Viewing the Universe 1. How did observations of the sky help sailors in the past? 2. What is the main reason people study the

More information

Explain the impact of location, climate, natural resources, and population distribution on Europe. a. Compare how the location, climate, and natural

Explain the impact of location, climate, natural resources, and population distribution on Europe. a. Compare how the location, climate, and natural SS6G10 Explain the impact of location, climate, natural resources, and population distribution on Europe. a. Compare how the location, climate, and natural resources of Germany, the United Kingdom and

More information

Radioactive Dating. U238>Pb206. Halflife: Oldest earth rocks. Meteors and Moon rocks. 4.5 billion years billion years

Radioactive Dating. U238>Pb206. Halflife: Oldest earth rocks. Meteors and Moon rocks. 4.5 billion years billion years U238>Pb206 Halflife: 4.5 billion years Oldest earth rocks 3.96 billion years Meteors and Moon rocks 4.6 billion years This is the time they solidified The solar system is older than this. Radioactive Dating

More information

ESA's Rosetta spacecraft What are habitable exoplanets? Is there an Earth 2.0?

ESA's Rosetta spacecraft What are habitable exoplanets? Is there an Earth 2.0? ESA's Rosetta spacecraft - 2009 What are habitable exoplanets? Is there an Earth 2.0? Christina Hedges (Institute of Astronomy) For the past 20 years, since the discovery of planets outside our solar system,

More information

SHORT DISCOVERY-BASED STEM EXPERIENCES STEM. Brought to you by the NATIONAL AFTERSCHOOL ASSOCIATION

SHORT DISCOVERY-BASED STEM EXPERIENCES STEM. Brought to you by the NATIONAL AFTERSCHOOL ASSOCIATION SHORT DISCOVERY-BASED STEM EXPERIENCES STEM gems Brought to you by the NATIONAL AFTERSCHOOL ASSOCIATION SOLAR ECLIPSE big IDEAS ON MONDAY AUGUST 21, 2017 NORTH AMERICA WILL BE TREATED TO A RARE CELESTIAL

More information

Unit 9 (packet #2): Volcanoes and Earthquakes

Unit 9 (packet #2): Volcanoes and Earthquakes Unit 9 (packet #2): Volcanoes and Earthquakes 13. Earthquakes are one of the most destructive natural forces. I can a. Explain what an earthquake is, where they occur and why they occur. b. Describe the

More information

Are We Alone in the Universe? An Introduction to Astrobiology. Dr. Henry Throop Planetary Science Institute Tucson, Arizona, USA

Are We Alone in the Universe? An Introduction to Astrobiology. Dr. Henry Throop Planetary Science Institute Tucson, Arizona, USA Are We Alone in the Universe? An Introduction to Astrobiology Dr. Henry Throop Planetary Science Institute Tucson, Arizona, USA SciFest Africa, March 2013 The biggest question facing astronomers today...

More information

ASTRONOMY 161. Introduction to Solar System Astronomy. Class 26

ASTRONOMY 161. Introduction to Solar System Astronomy. Class 26 ASTRONOMY 161 Introduction to Solar System Astronomy Class 26 Asteroids Friday, March 9 and Comets Ceres: Basic characteristics Mass = 9.46 10 20 kg Diameter = 920 km Density = 2,080 kg/m³ Sidereal

More information

SECOND GRADE 1 WEEK LESSON PLANS AND ACTIVITIES

SECOND GRADE 1 WEEK LESSON PLANS AND ACTIVITIES SECOND GRADE 1 WEEK LESSON PLANS AND ACTIVITIES UNIVERSE CYCLE OVERVIEW OF SECOND GRADE UNIVERSE WEEK 1. PRE: Discovering stars. LAB: Analyzing the geometric pattern of constellations. POST: Exploring

More information

BBC LEARNING ENGLISH 6 Minute English Life on Mars

BBC LEARNING ENGLISH 6 Minute English Life on Mars BBC LEARNING ENGLISH 6 Minute English Life on Mars NB: This is not a word-for-word transcript Hello and welcome to 6 Minute English. I'm And I'm. did you see the beautiful sky last night? No, I went to

More information

Earth Is Not the Center of the Universe

Earth Is Not the Center of the Universe Science Benchmark: 06:03 The solar system consists of planets, moons, and other smaller objects including asteroids and comets that orbit the sun. Planets in the solar system differ in terms of their distance

More information

Earth in Space. Guide for Reading How does Earth move in space? What causes the cycle of seasons on Earth?

Earth in Space. Guide for Reading How does Earth move in space? What causes the cycle of seasons on Earth? Earth in Space How does Earth move in space? What causes the cycle of seasons on Earth? The study of the moon, stars, and other objects in space is called astronomy. Ancient astronomers studied the movements

More information

Starting from closest to the Sun, name the orbiting planets in order.

Starting from closest to the Sun, name the orbiting planets in order. Chapter 9 Section 1: Our Solar System Solar System: The solar system includes the sun, planets and many smaller structures. A planet and its moon(s) make up smaller systems in the solar system. Scientist

More information

OUR SOLAR SYSTEM. James Martin. Facebook.com/groups/AstroLSSC Twitter.com/AstroLSSC

OUR SOLAR SYSTEM. James Martin. Facebook.com/groups/AstroLSSC Twitter.com/AstroLSSC OUR SOLAR SYSTEM James Martin Facebook.com/groups/AstroLSSC Twitter.com/AstroLSSC It s time for the human race to enter the solar system. -Dan Quayle Structure of the Solar System Our Solar System contains

More information

Astronomy 1504 Section 10 Final Exam Version 1 May 6, 1999

Astronomy 1504 Section 10 Final Exam Version 1 May 6, 1999 Astronomy 1504 Section 10 Final Exam Version 1 May 6, 1999 Reminder: When I write these questions, I believe that there is one one correct answer. The questions consist of all parts a e. Read the entire

More information

The Sun s center is much hotter than the surface. The Sun looks large and bright in the sky. Other stars look much smaller.

The Sun s center is much hotter than the surface. The Sun looks large and bright in the sky. Other stars look much smaller. The Sun A star is a huge ball of hot, glowing gases. The Sun is a star. The width of the Sun is equal to the width of 100 Earths placed side by side. The Sun is extremely hot. The surface of the Sun has

More information

Hurricanes. Cause: a low pressure storm system over warm ocean water. Effect: potential massive widespread destruction and flooding.

Hurricanes. Cause: a low pressure storm system over warm ocean water. Effect: potential massive widespread destruction and flooding. Hurricanes Hurricanes Cause: a low pressure storm system over warm ocean water. Effect: potential massive widespread destruction and flooding. Hurricanes also known as: cyclone (Indian Ocean) or typhoon

More information

The Cosmic Perspective Seventh Edition. Asteroids, Comets, and Dwarf Planets: Their Natures, Orbits, and Impacts. Chapter 12 Review Clickers

The Cosmic Perspective Seventh Edition. Asteroids, Comets, and Dwarf Planets: Their Natures, Orbits, and Impacts. Chapter 12 Review Clickers Review Clickers The Cosmic Perspective Seventh Edition Asteroids, Comets, and Dwarf Planets: Their Natures, Orbits, and Impacts Asteroids a) are rocky and small typically the size of a grain of rice or

More information

The Universe and Galaxies

The Universe and Galaxies The Universe and Galaxies 16.1 http://dingo.care-mail.com/cards/flash/5409/galaxy.swf Universe The sum of all matter and energy that exists, that has ever existed, and that will ever exist. We will focus

More information

The Solar System LEARNING TARGETS. Scientific Language. Name Test Date Hour

The Solar System LEARNING TARGETS. Scientific Language. Name Test Date Hour Name Test Date Hour Astronomy#3 - Notebook The Solar System LEARNING TARGETS I can describe the objects that make up our solar system. I can identify the inner and outer planets. I can explain the difference

More information

ASTRONOMY CURRICULUM Unit 1: Introduction to Astronomy

ASTRONOMY CURRICULUM Unit 1: Introduction to Astronomy Chariho Regional School District - Science Curriculum September, 2016 ASTRONOMY CURRICULUM Unit 1: Introduction to Astronomy OVERVIEW Summary Students will be introduced to the overarching concept of astronomy.

More information

The force of gravity holds us on Earth and helps objects in space stay

The force of gravity holds us on Earth and helps objects in space stay 96 R E A D I N G The force of gravity holds us on Earth and helps objects in space stay in orbit. The planets in the Solar System could not continue to orbit the Sun without the force of gravity. Astronauts

More information