Time Zones - Overview

Size: px
Start display at page:

Download "Time Zones - Overview"

Transcription

1 Grade 9 Geography of Canada Unit 3 Lesson 4 Time Zones The Earth rotates 15 degrees every hour. The idea behind multiple time zones is to divide the world into degree slices and set the clocks accordingly in each zone. All of the people in a given zone set their clocks the same way, and each zone is one hour different from the next. In Canada, there are six time zones: Newfoundland, Atlantic, Eastern, Central, Mountain and Pacific. When it is 12:30 p.m. in Newfoundland, it is $ noon in the Atlantic time zone $ 11 a.m. in the Eastern time zone $ 10 a.m. in the Central time zone $ 9 a.m. in the Mountain time zone $ 8 a.m. in the Pacific time zone. Note: Saskatchewan uses Mountain Standard in the summer and Central Standard in the winter. All time zones are measured from a starting point centered at England's Greenwich Observatory. This point is known as the Greenwich Meridian or the Prime Meridian. Time at the Greenwich Meridian is known as Greenwich Mean Time (GMT) or Universal Time. The Eastern time zone in Canada is designated as GMT minus five hours. When it is noon in the Eastern time zone, it is 5 p.m. at the Greenwich Observatory. The International Date Line (IDL) is located on the opposite side of the planet from the Greenwich Observatory. Time Zones - Overview Canadian Sir Sandford Fleming invented time zones in 1884 to address concerns about intercontinental railway transportation. The theory behind time zones is:? Since the earth rotates around its axis once every 24 hours, there are 24 time zones around the earth, with 1-hour difference between them. Since the earth rotates through 360 degrees in 24 hours, it rotates through 15 degrees of longitude in 1 hour (360 / 24 = 15 ). Thus, each time zone is 15 degrees wide. Every place within a time zone has the same time, referred to as its standard time.

2 ? The prime meridian is the centre of a time zone that extends 7.5 degrees on either side. Time in this zone is called universal time (UT) Standard times in other zones are compared to UT. Every 15 degrees is the centre of a time zone.? The earth rotates from west to east. Time zones east of the prime meridian have local times that are ahead of UT. Time zones west of the prime meridian have local times that are behind UT. For example, if the sun is directly above the prime meridian, the local time in the city of Berlin, which is one time zone east of UT, is 1 p.m. In Ottawa, which is five time zones west of the prime meridian, the time is 7 a.m. It will be five more hours before the sun appears directly over the 75 W meridian which is the centre of the time zone where Ottawa is located.? Time zone shapes have been modified worldwide. China has one standard time for the whole country despite the fact that it covers more than 60 of longitude. Canada has six standard time zones, although the boundaries do not follow the meridians of longitude.? Some places are located where time zones meet. St. John's, Newfoundland, at 52.5 o W, is located between the third and fourth time zones west of the prime meridian. Its time is 3.5 hours behind UT. International Date Line When sailors first sailed around the world, they returned home either a day ahead or a day behind those people who stayed. To correct this situation, the International Date Line was established. It runs between the North and South Pole, and generally follows the 180 line of longitude through the Pacific Ocean. It zigzags to avoid dividing land masses or island groups belonging to the same country. If you cross the date line moving westward, you add a day. If you cross the date line moving eastward, you lose a day. The time does not change unless the date line corresponds to a time zone boundary. Daylight-Saving Time Many parts of the world change their time according to the season. During the summer, daylight-saving time is used to extend daylight hours into the evening when most people are awake. That is, the sun would set at 9 p.m. instead of 8 p.m., thereby cutting down on energy use since lights don't have to be turned on until later in the day. In Canada and the United States, daylight-saving time begins on the first Sunday in April and ends on the last Sunday in October. Other countries use different dates. Longitude and Time Early sailors determined their latitude by the angle of the sun above the horizon or by the position of the North Star (Polaris), but they had no practical way to find their longitude. In theory, longitude could be calculated if sailors knew their local time and the time in Greenwich. However, the pendulum clocks that were in use at the time did not

3 work on a ship being tossed about by waves. In 1791, Englishman John Harrison developed the marine chronometer - spring-loaded clock that could keep time on a moving ship. Longitude was calculated in the following manner: $ Exact local time: 7:00 am $ Greenwich time: 12:00 noon $ Since local time was five hours behind Greenwich, the location was west of the prime meridian. $ 5 hours = 75 degrees (5 x 15 o ) $ Current longitude: 75 o W of the prime meridian. Possible locations: Ottawa, Canada; Philadelphia. U.S.A. Eight Time Zone Facts 1. The earth rotates about once every 24 hours. There are 24 hours in a day. 2. The circumference of the Earth is Most time zones have a one hour time difference. The exception is Newfoundland Standard Time. 4. Canada has six time zones: Newfoundland, Atlantic, Eastern, Central, Mountain and Pacific. When it is 12:30 p.m. in Newfoundland, it is $ noon in the Atlantic time zone $ 11 a.m. in the Eastern time zone $ 10 a.m. in the Central time zone $ 9 a.m. in the Mountain time zone $ 8 a.m. in the Pacific time zone. Note: Saskatchewan uses Mountain Standard in the summer and Central Standard in the winter. 5. Time zones have approximately 15 of longitude from east to west. 6. The world has 24 time zones (15 x 24 hours = 360 ). 7. Standard times starts at 0 longitude running through Greenwich, England. This is called the Greenwich Meridian or the Prime Meridian. 8. Standard time was developed by Canadian Sir Sandford Fleming.

4

5

Activity 10 - Universal Time

Activity 10 - Universal Time Activity 10 - Universal Time Teacher s Guide Scientists use the Universal Time reference to talk about data that is taken around the globe. Universal Time is the time kept in the time zone centered on

More information

Newton s Law of Gravity

Newton s Law of Gravity Gravitational Potential Energy On Earth, depends on: object s mass (m) strength of gravity (g) distance object could potentially fall Gravitational Potential Energy In space, an object or gas cloud has

More information

Lines of Latitude and Longitude

Lines of Latitude and Longitude ED 5661 Mathematics & Navigation Teacher Institute Keith Johnson Lesson Plan Lines of Latitude and Longitude Lesson Overview: This lesson plan will introduce students to latitude and longitude along with

More information

Earth-Sun Relationships. The Reasons for the Seasons

Earth-Sun Relationships. The Reasons for the Seasons Earth-Sun Relationships The Reasons for the Seasons Solar Radiation The earth intercepts less than one two-billionth of the energy given off by the sun. However, the radiation is sufficient to provide

More information

Solar Angles and Latitude

Solar Angles and Latitude Solar Angles and Latitude Objectives The student will understand that the sun is not directly overhead at noon in most latitudes. The student will research and discover the latitude ir classroom and calculate

More information

Navigation: Latitude and Longitude

Navigation: Latitude and Longitude Sextants and Chronometers Help Sailors Find Their Position at Sea Latitude lines run horizontally across the globe and are used to measure distances north and south of the equator. Sailors used a sextant

More information

Sun Earth Relationships

Sun Earth Relationships 1 ESCI-61 Introduction to Photovoltaic Technology Sun Earth Relationships Ridha Hamidi, Ph.D. Spring (sun aims directly at equator) Winter (northern hemisphere tilts away from sun) 23.5 2 Solar radiation

More information

Activity 1 Reading Universal Time Level 2 http://www.uni.edu/storm/activities/level2/index.shtml

Activity 1 Reading Universal Time Level 2 http://www.uni.edu/storm/activities/level2/index.shtml Activity 1 Reading Universal Time Level 2 http://www.uni.edu/storm/activities/level2/index.shtml National Science Education Standards: As a result of activities in grades 5-8, all students should develop

More information

World Map Lesson 4 - The Global Grid System - Grade 6+

World Map Lesson 4 - The Global Grid System - Grade 6+ World Map Lesson 4 - The Global Grid System - Grade 6+ Activity Goal To use the global grid system of latitude and longitude to find specific locations on a world map. Materials Needed: A pencil, a ruler,

More information

Celestial Observations

Celestial Observations Celestial Observations Earth experiences two basic motions: Rotation West-to-East spinning of Earth on its axis (v rot = 1770 km/hr) (v rot Revolution orbit of Earth around the Sun (v orb = 108,000 km/hr)

More information

Astromechanics. 1 solar day = 1.002737909350795 sidereal days

Astromechanics. 1 solar day = 1.002737909350795 sidereal days Astromechanics 13. Time Considerations- Local Sidereal Time The time that is used by most people is that called the mean solar time. It is based on the idea that if the Earth revolved around the Sun at

More information

FIRST GRADE 1 WEEK LESSON PLANS AND ACTIVITIES

FIRST GRADE 1 WEEK LESSON PLANS AND ACTIVITIES FIRST GRADE 1 WEEK LESSON PLANS AND ACTIVITIES UNIVERSE CYCLE OVERVIEW OF FIRST GRADE UNIVERSE WEEK 1. PRE: Describing the Universe. LAB: Comparing and contrasting bodies that reflect light. POST: Exploring

More information

Basic Coordinates & Seasons Student Guide

Basic Coordinates & Seasons Student Guide Name: Basic Coordinates & Seasons Student Guide There are three main sections to this module: terrestrial coordinates, celestial equatorial coordinates, and understanding how the ecliptic is related to

More information

Motions of Earth, Moon, and Sun

Motions of Earth, Moon, and Sun Motions of Earth, Moon, and Sun Apparent Motions of Celestial Objects An apparent motion is a motion that an object appears to make. Apparent motions can be real or illusions. When you see a person spinning

More information

Latitude, Longitude, and Time Zones

Latitude, Longitude, and Time Zones Latitude, Longitude, and Time Zones Typical Graph This is an example of a typical graph. It is made up of points that are connected by a line. Y axis Typical Graph Each point has two values: (4,7) An X

More information

Use WITH Investigation 4, Part 2, Step 2

Use WITH Investigation 4, Part 2, Step 2 INVESTIGATION 4 : The Sundial Project Use WITH Investigation 4, Part 2, Step 2 EALR 4: Earth and Space Science Big Idea: Earth in Space (ES1) Projects: Tether Ball Pole Sundial Globe and a Light Indoors

More information

Shadows, Angles, and the Seasons

Shadows, Angles, and the Seasons Shadows, Angles, and the Seasons If it's cold in winter, why is Earth closer to the Sun? This activity shows the relationship between Earth-Sun positions and the seasons. From The WSU Fairmount Center

More information

Earth In Space Chapter 3

Earth In Space Chapter 3 Earth In Space Chapter 3 Shape of the Earth Ancient Greeks Earth casts a circular shadow on the moon during a lunar eclipse Shape of the Earth Ancient Greeks Ships were observed to disappear below the

More information

The Globe Latitudes and Longitudes

The Globe Latitudes and Longitudes INDIAN SCHOOL MUSCAT MIDDLE SECTION DEPARTMENT OF SOCIAL SCIENCE The Globe Latitudes and Longitudes NAME: CLASS VI SEC: ROLL NO: DATE:.04.2015 I NAME THE FOLLOWING: 1. A small spherical model of the Earth:

More information

1. In the diagram below, the direct rays of the Sun are striking the Earth's surface at 23 º N. What is the date shown in the diagram?

1. In the diagram below, the direct rays of the Sun are striking the Earth's surface at 23 º N. What is the date shown in the diagram? 1. In the diagram below, the direct rays of the Sun are striking the Earth's surface at 23 º N. What is the date shown in the diagram? 5. During how many days of a calendar year is the Sun directly overhead

More information

What causes Tides? If tidal forces were based only on mass, the Sun should have a tidegenerating

What causes Tides? If tidal forces were based only on mass, the Sun should have a tidegenerating What are Tides? Tides are very long-period waves that move through the oceans as a result of the gravitational attraction of the Moon and the Sun for the water in the oceans of the Earth. Tides start in

More information

Module 11: The Cruise Ship Sector. Destination #3

Module 11: The Cruise Ship Sector. Destination #3 Module 11: The Cruise Ship Sector Destination #3 Cruise Destinations Welcome to your third destination. Use the following resource article to learn about the different oceans and time zones. Seen from

More information

Stellarium a valuable resource for teaching astronomy in the classroom and beyond

Stellarium a valuable resource for teaching astronomy in the classroom and beyond Stellarium 1 Stellarium a valuable resource for teaching astronomy in the classroom and beyond Stephen Hughes Department of Physical and Chemical Sciences, Queensland University of Technology, Gardens

More information

Local Sidereal Time is the hour angle of the First Point of Aries, and is equal to the hour angle plus right ascension of any star.

Local Sidereal Time is the hour angle of the First Point of Aries, and is equal to the hour angle plus right ascension of any star. 1 CHAPTER 7 TIME In this chapter we briefly discuss the several time scales that are in use in astronomy, such as Universal Time, Mean Solar Time, Ephemeris Time, Terrestrial Dynamical Time, and the several

More information

EDMONDS COMMUNITY COLLEGE ASTRONOMY 100 Winter Quarter 2007 Sample Test # 1

EDMONDS COMMUNITY COLLEGE ASTRONOMY 100 Winter Quarter 2007 Sample Test # 1 Instructor: L. M. Khandro EDMONDS COMMUNITY COLLEGE ASTRONOMY 100 Winter Quarter 2007 Sample Test # 1 1. An arc second is a measure of a. time interval between oscillations of a standard clock b. time

More information

The Celestial Sphere. Questions for Today. The Celestial Sphere 1/18/10

The Celestial Sphere. Questions for Today. The Celestial Sphere 1/18/10 Lecture 3: Constellations and the Distances to the Stars Astro 2010 Prof. Tom Megeath Questions for Today How do the stars move in the sky? What causes the phases of the moon? What causes the seasons?

More information

The following words and their definitions should be addressed before completion of the reading:

The following words and their definitions should be addressed before completion of the reading: Seasons Vocabulary: The following words and their definitions should be addressed before completion of the reading: sphere any round object that has a surface that is the same distance from its center

More information

Plotting a Course Through History A Navigation History Timeline

Plotting a Course Through History A Navigation History Timeline Mariners know how to navigate from here to there and back again. But we seldom stop to wonder who figured out how to determine position in the middle of an ocean, who developed the concept of latitude

More information

CELESTIAL CLOCK - THE SUN, THE MOON, AND THE STARS

CELESTIAL CLOCK - THE SUN, THE MOON, AND THE STARS INTRODUCTION CELESTIAL CLOCK - THE SUN, THE MOON, AND THE STARS This is a scientific presentation to provide you with knowledge you can use to understand the sky above in relation to the earth. Before

More information

Seasons on Earth LESSON

Seasons on Earth LESSON LESSON 4 Seasons on Earth On Earth, orange and red autumn leaves stand out against the blue sky. NATIONAL OCEANIC AND ATMOSPHERIC ADMINISTRATION (NOAA) PHOTO LIBRARY/NOAA CENTRAL LIBRARY INTRODUCTION Nearly

More information

An Introduction to Coordinate Systems in South Africa

An Introduction to Coordinate Systems in South Africa An Introduction to Coordinate Systems in South Africa Centuries ago people believed that the earth was flat and notwithstanding that if this had been true it would have produced serious problems for mariners

More information

Tropical Horticulture: Lecture 2

Tropical Horticulture: Lecture 2 Lecture 2 Theory of the Tropics Earth & Solar Geometry, Celestial Mechanics The geometrical relationship between the earth and sun is responsible for the earth s climates. The two principal movements of

More information

Lines on Maps and Globes. Cross Curricular Writing Activity Social Studies Grade 4

Lines on Maps and Globes. Cross Curricular Writing Activity Social Studies Grade 4 Lines on Maps and Globes Cross Curricular Writing Activity Social Studies Grade 4 Fourth Grade Social Studies Standard Map: Chart/Globe The learner will be able to use maps, charts, graphs, and globes

More information

Coordinate Systems. Orbits and Rotation

Coordinate Systems. Orbits and Rotation Coordinate Systems Orbits and Rotation Earth orbit. The earth s orbit around the sun is nearly circular but not quite. It s actually an ellipse whose average distance from the sun is one AU (150 million

More information

How do you find a place on a globe? How do you look up a place based on latitude and longitude?

How do you find a place on a globe? How do you look up a place based on latitude and longitude? Why are globes tilted? Most Replogle globes are made to tilt at an angle of 23.5º to match the actual tilt of the earth in relationship to our sun. Incidentally, it is this tilting of the earth relative

More information

6. The greatest atmospheric pressure occurs in the 1) troposphere 3) mesosphere 2) stratosphere 4) thermosphere

6. The greatest atmospheric pressure occurs in the 1) troposphere 3) mesosphere 2) stratosphere 4) thermosphere 1. The best evidence of the Earth's nearly spherical shape is obtained through telescopic observations of other planets photographs of the Earth from an orbiting satellite observations of the Sun's altitude

More information

Full credit for this chapter to Prof. Leonard Bachman of the University of Houston

Full credit for this chapter to Prof. Leonard Bachman of the University of Houston Chapter 6: SOLAR GEOMETRY Full credit for this chapter to Prof. Leonard Bachman of the University of Houston SOLAR GEOMETRY AS A DETERMINING FACTOR OF HEAT GAIN, SHADING AND THE POTENTIAL OF DAYLIGHT PENETRATION...

More information

ASTRONOMY 161. Introduction to Solar System Astronomy

ASTRONOMY 161. Introduction to Solar System Astronomy ASTRONOMY 161 Introduction to Solar System Astronomy Seasons & Calendars Monday, January 8 Season & Calendars: Key Concepts (1) The cause of the seasons is the tilt of the Earth s rotation axis relative

More information

PROPOSAL Stalker Hall Sunwork and Garden A large outdoor sculpture and garden space

PROPOSAL Stalker Hall Sunwork and Garden A large outdoor sculpture and garden space PROPOSAL Stalker Hall Sunwork and Garden A large outdoor sculpture and garden space FOR: Indiana State University, Terre Haute, College of Arts and Sciences North entrance - newly renovated Stalker Hall

More information

Cycles in the Sky. Teacher Guide: Cycles in the Sky Page 1 of 8 2008 Discovery Communications, LLC

Cycles in the Sky. Teacher Guide: Cycles in the Sky Page 1 of 8 2008 Discovery Communications, LLC Cycles in the Sky What is a Fun damental? Each Fun damental is designed to introduce your younger students to some of the basic ideas about one particular area of science. The activities in the Fun damental

More information

CHAPTER 18 TIME TIME IN NAVIGATION

CHAPTER 18 TIME TIME IN NAVIGATION CHAPTER 18 TIME TIME IN NAVIGATION 1800. Solar Time The Earth s rotation on its axis causes the Sun and other celestial bodies to appear to move across the sky from east to west each day. If a person located

More information

Motion & The Global Positioning System (GPS)

Motion & The Global Positioning System (GPS) Grade Level: K - 8 Subject: Motion Prep Time: < 10 minutes Duration: 30 minutes Objective: To learn how to analyze GPS data in order to track an object and derive its velocity from positions and times.

More information

Tides and Water Levels

Tides and Water Levels Tides and Water Levels What are Tides? Tides are one of the most reliable phenomena in the world. As the sun rises in the east and the stars come out at night, we are confident that the ocean waters will

More information

Pre and post-visit activities - Navigating by the stars

Pre and post-visit activities - Navigating by the stars Pre and post-visit activities - Navigating by the stars Vocabulary List Adult Education at Scienceworks Pre-visit Activity 1: What is longitude and latitude? Activity 2: Using the Southern Cross to find

More information

Science Benchmark: 06 : 01 Standard 01: THE MYSTICAL MOON axis of rotation,

Science Benchmark: 06 : 01 Standard 01: THE MYSTICAL MOON axis of rotation, Science Benchmark: 06 : 01 The appearance of the lighted portion of the moon changes in a predictable cycle as a result of the relative positions of Earth, the moon, and the sun. Standard 01: Students

More information

Reasons for Seasons. Question: TRUE OR FALSE. Question: TRUE OR FALSE? What causes the seasons? What causes the seasons?

Reasons for Seasons. Question: TRUE OR FALSE. Question: TRUE OR FALSE? What causes the seasons? What causes the seasons? Reasons for Seasons Question: TRUE OR FALSE? Earth is closer to the Sun in summer and farther from the Sun in winter. Question: TRUE OR FALSE? Earth is closer to the Sun in summer and farther from the

More information

ASTR 1030 Astronomy Lab 65 Celestial Motions CELESTIAL MOTIONS

ASTR 1030 Astronomy Lab 65 Celestial Motions CELESTIAL MOTIONS ASTR 1030 Astronomy Lab 65 Celestial Motions CELESTIAL MOTIONS SYNOPSIS: The objective of this lab is to become familiar with the apparent motions of the Sun, Moon, and stars in the Boulder sky. EQUIPMENT:

More information

Solar 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? 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 information

LATITUDE GNOMON AND QUADRANT FOR THE WHOLE YEAR

LATITUDE GNOMON AND QUADRANT FOR THE WHOLE YEAR LATITUDE GNOMON AND QUADRANT FOR THE WHOLE YEAR Sakari Ekko EAAE Summer School Working Group (Finland) Abstract In this workshop, we examine the correlation between our latitude and the altitude of the

More information

Fantasy flight. Investigation 7. Understanding the Investigation

Fantasy flight. Investigation 7. Understanding the Investigation Investigation 7 Fantasy flight You have won a dre trip around the world, providing you with 50 000 km of free air travel to four major cities. Unfortunately, there is a catch! You have to pay for your

More information

Lab Activity on the Causes of the Seasons

Lab Activity on the Causes of the Seasons Lab Activity on the Causes of the Seasons 2002 Ann Bykerk-Kauffman, Dept. of Geological and Environmental Sciences, California State University, Chico * Objectives When you have completed this lab you

More information

Essential Question. Enduring Understanding

Essential Question. Enduring Understanding Earth In Space Unit Diagnostic Assessment: Students complete a questionnaire answering questions about their ideas concerning a day, year, the seasons and moon phases: My Ideas About A Day, Year, Seasons

More information

2. The map below shows high-pressure and low-pressure weather systems in the United States.

2. The map below shows high-pressure and low-pressure weather systems in the United States. 1. Which weather instrument has most improved the accuracy of weather forecasts over the past 40 years? 1) thermometer 3) weather satellite 2) sling psychrometer 4) weather balloon 6. Wind velocity is

More information

Lesson 1: Phases of the Moon

Lesson 1: Phases of the Moon Lesson 1: Phases of the Moon The moon takes 29.5 days to revolve around the earth. During this time, the moon you see in the sky appears to change shape. These apparent changes, which are called phases,

More information

Today FIRST HOMEWORK DUE NEXT TIME. Seasons/Precession Recap. Phases of the Moon. Eclipses. Lunar, Solar. Ancient Astronomy

Today FIRST HOMEWORK DUE NEXT TIME. Seasons/Precession Recap. Phases of the Moon. Eclipses. Lunar, Solar. Ancient Astronomy Today FIRST HOMEWORK DUE NEXT TIME Seasons/Precession Recap Phases of the Moon Eclipses Lunar, Solar Ancient Astronomy How do we mark the progression of the seasons? We define four special points: summer

More information

COASTLINING THE ZODIAC

COASTLINING THE ZODIAC COASTLINING THE ZODIAC Astronomy books and skywatching guides offer a wide variety of charts for naked-eye observation of the skies. What works best for each person will depend on various factors such

More information

The Earth Really is Flat! The Globe and Coordinate Systems. Long History of Mapping. The Earth is Flat. Long History of Mapping

The Earth Really is Flat! The Globe and Coordinate Systems. Long History of Mapping. The Earth is Flat. Long History of Mapping The Earth Really is Flat! The Globe and Coordinate Systems Intro to Mapping & GIS The Earth is Flat Day to day, we live life in a flat world sun rises in east, sets in west sky is above, ground is below

More information

Week 1. Week 2. Week 3

Week 1. Week 2. Week 3 Week 1 1. What US city has the largest population? 2. Where is Aachen? 3. What is the capitol of Florida? 4. What is the longest mountain range in Spain? 5. What countries border Equador? Week 2 1. What

More information

Best Practices for Leap Second Event Occurring on 30 June 2015

Best Practices for Leap Second Event Occurring on 30 June 2015 Best Practices for Leap Second Event Occurring on 30 June 2015 26 May 2015 Sponsored by the National Cybersecurity and Communications Integration Center in coordination with the United States Naval Observatory,

More information

Noon Sun Angle = 90 Zenith Angle

Noon Sun Angle = 90 Zenith Angle Noon Sun Angle Worksheet Name Name Date Subsolar Point (Latitude where the sun is overhead at noon) Equinox March 22 nd 0 o Equinox September 22 nd 0 o Solstice June 22 nd 23.5 N Solstice December 22 nd

More information

Sunlight and its Properties. EE 495/695 Y. Baghzouz

Sunlight and its Properties. EE 495/695 Y. Baghzouz Sunlight and its Properties EE 495/695 Y. Baghzouz The sun is a hot sphere of gas whose internal temperatures reach over 20 million deg. K. Nuclear fusion reaction at the sun's core converts hydrogen to

More information

Geography I Pre Test #1

Geography I Pre Test #1 Geography I Pre Test #1 1. The sun is a star in the galaxy. a) Orion b) Milky Way c) Proxima Centauri d) Alpha Centauri e) Betelgeuse 2. The response to earth's rotation is a) an equatorial bulge b) polar

More information

Rising and Setting of the Moon

Rising and Setting of the Moon Rising and Setting of the Moon Activity UCIObs 6 Grade Level: 3 5 Source: Copyright (2009) by Tammy Smecker-Hane. Contact tsmecker@uci.edu with questions. Standards: This activity addresses these California

More information

APPENDIX D: SOLAR RADIATION

APPENDIX D: SOLAR RADIATION APPENDIX D: SOLAR RADIATION The sun is the source of most energy on the earth and is a primary factor in determining the thermal environment of a locality. It is important for engineers to have a working

More information

Relationship Between the Earth, Moon and Sun

Relationship Between the Earth, Moon and Sun Relationship Between the Earth, Moon and Sun Rotation A body turning on its axis The Earth rotates once every 24 hours in a counterclockwise direction. Revolution A body traveling around another The Earth

More information

Inside Earth Chapter 3

Inside Earth Chapter 3 Name Hour Due Date Inside Earth Chapter Page 1 Volcanoes and Plate Tectonics Page 2 Volcanic Activity Page - Mapping Earthquakes and Volcanoes Page 4 Mapping Earthquakes and Volcanoes table Page 5 - Mapping

More information

3. Shading. V. ENVIRONMENTAL IMPACT ANALYSIS A.3 Aesthetics Shading

3. Shading. V. ENVIRONMENTAL IMPACT ANALYSIS A.3 Aesthetics Shading 3. Shading The effects of shading by one building upon another can be either positive or negative depending upon the site-specific circumstances of the properties involved. A potential benefit of shading

More information

One positive experience I've had in the last 24 hours: Exercise today:

One positive experience I've had in the last 24 hours: Exercise today: Name - Day 1 of 21 Sunday, June 29, 2014 3:34 PM journal template Page 1 Name - Day 1 of 21 Sunday, June 29, 2014 3:34 PM journal template Page 2 Name - Day 2 of 21 2:27 PM journal template Page 3 Name

More information

Answers for the Study Guide: Sun, Earth and Moon Relationship Test

Answers for the Study Guide: Sun, Earth and Moon Relationship Test Answers for the Study Guide: Sun, Earth and Moon Relationship Test 1) It takes one day for the Earth to make one complete on its axis. a. Rotation 2) It takes one year for the Earth to make one around

More information

Measuring the Earth Using a GPS M. Scott Wilkerson & M. Beth Wilkerson, DePauw University, May 10, 2007

Measuring the Earth Using a GPS M. Scott Wilkerson & M. Beth Wilkerson, DePauw University, May 10, 2007 Measuring the Earth Using a GPS M. Scott Wilkerson & M. Beth Wilkerson, DePauw University, May 10, 2007 Modified from: Kerski, J.J., 2007, Measuring the Earth s Circumference with GPS, Copyright ESRI,

More information

The Analemma for Latitudinally-Challenged People

The Analemma for Latitudinally-Challenged People The Analemma for Latitudinally-Challenged People Teo Shin Yeow An academic exercise presented in partial fulfillment for the degree of Bachelor of Science with Honours in Mathematics Supervisor : Associate

More information

Motions of Earth LEARNING GOALS

Motions of Earth LEARNING GOALS 2 Patterns in the Sky Motions of Earth The stars first found a special place in legend and mythology as the realm of gods and goddesses, holding sway over the lives of humankind. From these legends and

More information

Finding Stars and Constellations Earth & Sky

Finding Stars and Constellations Earth & Sky Finding Stars and Constellations Earth & Sky Name: Introduction If you carefully watched the night sky over a period of time, you would notice that it s not always the same. There are certain changes that

More information

CELESTIAL MOTIONS. In Charlottesville we see Polaris 38 0 above the Northern horizon. Earth. Starry Vault

CELESTIAL MOTIONS. In Charlottesville we see Polaris 38 0 above the Northern horizon. Earth. Starry Vault CELESTIAL MOTIONS Stars appear to move counterclockwise on the surface of a huge sphere the Starry Vault, in their daily motions about Earth Polaris remains stationary. In Charlottesville we see Polaris

More information

The Four Seasons. A Warm Up Exercise. A Warm Up Exercise. A Warm Up Exercise. The Moon s Phases

The Four Seasons. A Warm Up Exercise. A Warm Up Exercise. A Warm Up Exercise. The Moon s Phases The Four Seasons A Warm Up Exercise What fraction of the Moon s surface is illuminated by the Sun (except during a lunar eclipse)? a) Between zero and one-half b) The whole surface c) Always half d) Depends

More information

5- Minute Refresher: Daily Observable Patterns in the Sky

5- Minute Refresher: Daily Observable Patterns in the Sky 5- Minute Refresher: Daily Observable Patterns in the Sky Key Ideas Daily Observable Patterns in the Sky include the occurrence of day and night, the appearance of the moon, the location of shadows and

More information

Earth, Sun and Moon is a set of interactives designed to support the teaching of the QCA primary science scheme of work 5e - 'Earth, Sun and Moon'.

Earth, Sun and Moon is a set of interactives designed to support the teaching of the QCA primary science scheme of work 5e - 'Earth, Sun and Moon'. is a set of interactives designed to support the teaching of the QCA primary science scheme of work 5e - ''. Learning Connections Primary Science Interactives are teaching tools which have been created

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

Today. Solstices & Equinoxes Precession Phases of the Moon Eclipses. Ancient Astronomy. Lunar, Solar FIRST HOMEWORK DUE NEXT TIME

Today. Solstices & Equinoxes Precession Phases of the Moon Eclipses. Ancient Astronomy. Lunar, Solar FIRST HOMEWORK DUE NEXT TIME Today Solstices & Equinoxes Precession Phases of the Moon Eclipses Lunar, Solar Ancient Astronomy FIRST HOMEWORK DUE NEXT TIME The Reason for Seasons Hypothesis check: How would seasons in the northern

More information

Lesson Plan. Skills: Describe, model Knowledge: position, size, motion, earth, moon, sun, day, night, solar eclipse, lunar eclipse, phases, moon

Lesson Plan. Skills: Describe, model Knowledge: position, size, motion, earth, moon, sun, day, night, solar eclipse, lunar eclipse, phases, moon Gallmeyer 1 Lesson Plan Lesson: Rotation of the Earth Length: 45 minutes Age or Grade Level Intended: 4 th Academic Standard(s): Science: Earth and Space: 6.2.1 Describe and model how the position, size

More information

Douglas Adams The Hitchhikers Guide to the Galaxy

Douglas Adams The Hitchhikers Guide to the Galaxy There is a theory which states that if ever anybody discovers exactly what the Universe is for and why it is here, it will instantly disappear and be replaced by something even more bizarre and inexplicable.

More information

compass Encyclopedic Entry

compass 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 compass For

More information

Geometry and Geography

Geometry and Geography Geometry and Geography Tom Davis tomrdavis@earthlink.net http://www.geometer.org/mathcircles March 12, 2011 1 Pedagogical Advice I have been leading mathematical circles using this topic for many years,

More information

User s Guide MARK 15 #026 MARK 25 #025 INDEX SHADES INDEX MIRROR. HORIZON MIRROR (Beam Converger on Mark 25 only) ADJUSTMENT SCREW HORIZON SHADES

User s Guide MARK 15 #026 MARK 25 #025 INDEX SHADES INDEX MIRROR. HORIZON MIRROR (Beam Converger on Mark 25 only) ADJUSTMENT SCREW HORIZON SHADES User s Guide INDEX SHADES INDEX MIRROR HORIZON MIRROR (Beam Converger on Mark 25 only) ADJUSTMENT SCREW HORIZON SHADES TELESCOPE MICROMETER DRUM QUICK RELEASE LEVERS LED ILLUMINATION (Mark 25 only) INDEX

More information

Plotting Earthquake Epicenters an activity for seismic discovery

Plotting Earthquake Epicenters an activity for seismic discovery Plotting Earthquake Epicenters an activity for seismic discovery Tammy K Bravo Anne M Ortiz Plotting Activity adapted from: Larry Braile and Sheryl Braile Department of Earth and Atmospheric Sciences Purdue

More information

Measuring Your Latitude from the Angle of the Sun at Noon

Measuring Your Latitude from the Angle of the Sun at Noon Measuring Your Latitude from the Angle of the Sun at Noon Background: You can measure your latitude in earth's northern hemisphere by finding out the altitude of the celestial equator from the southern

More information

Earth, Moon, and Sun Inquiry Template Eclipses

Earth, Moon, and Sun Inquiry Template Eclipses One Stop Shop For Educators 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

More information

Basic principles of celestial navigation

Basic principles of celestial navigation Basic principles of celestial navigation James A. Van Allen a) Department of Physics and Astronomy, The University of Iowa, Iowa City, Iowa 52242 Received 16 January 2004; accepted 10 June 2004 Celestial

More information

Phases of the Moon. Preliminaries:

Phases of the Moon. Preliminaries: Phases of the Moon Sometimes when we look at the Moon in the sky we see a small crescent. At other times it appears as a full circle. Sometimes it appears in the daylight against a bright blue background.

More information

Henry Hudson by Kelly Hashway

Henry Hudson by Kelly Hashway Before planes, people traveled by boat. And getting goods from one place to another took a long time, especially when ships had to sail around continents. In the early 1600s, European trading companies

More information

How Do Oceans Affect Weather and Climate?

How Do Oceans Affect Weather and Climate? How Do Oceans Affect Weather and Climate? In Learning Set 2, you explored how water heats up more slowly than land and also cools off more slowly than land. Weather is caused by events in the atmosphere.

More information

Earth in the Solar System

Earth in the Solar System Copyright 2011 Study Island - All rights reserved. Directions: Challenge yourself! Print out the quiz or get a pen/pencil and paper and record your answers to the questions below. Check your answers with

More information

Solar energy and the Earth s seasons

Solar energy and the Earth s seasons Solar energy and the Earth s seasons Name: Tilt of the Earth s axis and the seasons We now understand that the tilt of Earth s axis makes it possible for different parts of the Earth to experience different

More information

Constellation Assignment

Constellation Assignment Name Score Constellation Assignment Before beginning this assignment, you have to have read What Are Constellations, Where Did Constellations Come From, and the Navigation website. Have your teacher initial

More information

Heat Transfer. Energy from the Sun. Introduction

Heat Transfer. Energy from the Sun. Introduction Introduction The sun rises in the east and sets in the west, but its exact path changes over the course of the year, which causes the seasons. In order to use the sun s energy in a building, we need to

More information

Lunar Phase Simulator Student Guide

Lunar Phase Simulator Student Guide Name: Lunar Phase Simulator Student Guide Part I: Background Material Answer the following questions after reviewing the background pages for the simulator. Page 1 Introduction to Moon Phases Is there

More information

Activity 3: Observing the Moon

Activity 3: Observing the Moon Activity 3: Observing the Moon Print Name: Signature: 1.) KEY. 2.). 3.). 4.). Activity: Since the dawn of time, our closest neighbor the moon has fascinated humans. In this activity we will explore the

More information

Science in the Elementary and Middle School

Science in the Elementary and Middle School 15-0 Science in the Elementary and Middle School Naturally Occurring Inquiry Process, Which Can Be Made More Effective With Experience Uses Observable Data Science Search for Regularity Involves Information

More information

Exploration of the Solar System

Exploration of the Solar System Exploration of the Solar System I. Phases of the Moon all about perspective. In this section you will use WWT to explore how the moon appears to change phases from our vantage point on Earth over the course

More information

SIGHT REDUCTION FOR NAVIGATION

SIGHT REDUCTION FOR NAVIGATION SIGHT REDUCTION FOR NAVIGATION Table of Contents I. Time A. Time Itself 2 B. Time and the Noon Sight 1. Latitude by Mer Pass at Lan 3 2. Longitude by Mer Pass, Sunrise or Sunset 3 II. The Navigational

More information