Seasons & Time.

Size: px
Start display at page:

Download "Seasons & Time."

Transcription

1 Seasons & Time

2 Earth s Movements Rotation Movement of Earth Around the Sun Elliptical Orbit Revolution 24 Hours (1 Day) 365 Days (1 Year)

3 The Earth s Revolution & the Tilt of the axis cause variations in the amount of Sunshine

4 Variations in the amount of Sunshine are the basis of Seasons

5

6 Seasonal Change Recurrence of Winter, Summer and the Rainy Season one after the other on the Earth

7 Perihelion & Aphelion

8 Activity 1 (Short Notes) 1. How much time does the Earth take to complete One Revolution? 2. What is a Leap Year? 3. Difference between Rotation & Revolution 4. 5.

9 Earth Takes 365 Days 5 Hours 365 ¼ Days 48 Minutes 45 Seconds to complete one Revolution

10 Leap Year Year 2016 Total Days Balance Days 6 Hours Days 6 Hours Days 6 Hours Days 6 Hours 2020 will have 366 Days Once in 4 Year with 366 Days 1 Day 29 Days in February

11 23 ½ 0 66 ½ 0 Parallelism of Axis Orbital Plane The Earth has an Inclination & it maintains the Tilt throughout its Revolution

12 Apparent Movement of Sun

13 March 21 & Sep 23

14 March 21 & Sep 23

15 Equinoxes Sun over Equator on Mar 21 & Sep 23 Equal Sunlight in both Hemisphere Equal Day & Night In Northern Hemisphere from Mar Sep

16 Summer Solstice Sun over Tropic of Cancer on June 21 Longest Day Northern Hemisphere Longest Night Southern Hemisphere

17 Winter Solstice Sun over Tropic of Capricorn on Dec 22 Longest Night Northern Hemisphere Longest Day Southern Hemisphere In Southern Hemisphere from Sep Mar

18

19 Activity 2 (Complete the Table) Date Name Position of Sun Result Equinox Equator Equal Day & Night June 21 Summer Solstice Long Day in N Hem. Sep Equator Equal Day & Night Dec 22 Winter Solstice Long Night in N Hem.

20 Date Name Position of Sun Result Mar 21 Equinox Equator Equal Day & Night June 21 Summer Solstice Tropic of Cancer Long Day in N Hem. Sep 23 Equinox Equator Equal Day & Night Dec 22 Winter Solstice Tropic of Capricorn Long Night in N Hem.

21 Spring Transition from Winter to Summer March, April Summer Months (N.H.)

22 Autumn Transition from Summer towards Winter Atmospheric Temperature Decreases Short Day & Lengthy Night Trees Shed their Leaves N. Hem. Oct, Nov

23

24 Months Movement of Sun Seasons NH SH Mar 21 - June 21 Equator Tropic of Cancer Spring Autumn June 21- Tropic of Cancer Summer Winter Sep 23 Equator Sep 23 - Dec 22 Equator Tropic of Capricorn Autumn Spring Dec 22 Tropic of Capricorn Winter Summer Mar 21 Equator

25 Mid Latitude Region o Seasonal Differences are Deep o At Tropic of Capricorn o Longer Days & Shorter Nights (S.H.) At Tropic of Cancer Continuous Day light in Arctic Circle for 6 Months

26 Equatorial Region o Some Difference in the Length of Day & Night o Hot Climate throughout Year o Not much Seasonal Change Polar Region o Much Difference in the Length of Day & Night o Summer Cooler & Shorter o Winter Severe & Longer

27 Traditional Seasons of India Vasantha Mar, April Greeshma May, June Varsha Sarat Hemanta Sisira July, Aug Sep, Oct Nov, Dec Jan, Feb

28 Time Calculation Ancient Period Based on the Apex Position of the Sun & Length of Shadow Later Time Calculation became Scientific

29 Earth's Rotation - Facts West East Sun Rises 1 st in East 24 Hours to Complete 1 Rotation W E

30 W E Sun Rises at First in Arunachal Pradesh

31 Angular Distance of Earth = To Complete Rotation = 24 hours [ 24 x 60 = 1440 Minutes ] To Complete Rotation = 1440 Min. To Complete 1 0 Rotation = 4 Min. [ 1440 / 360 = 4 Minutes ] To Complete 15 0 Rotation = 1 hour [ 15 x 4 = 60 Min. (1 hour) ]

32 am pm am pm W E W E

33 Greenwich Line 0 0 Longitude Place of British Royal Observatory Worldwide Time Calculation based on it Prime Meridian World in to 24 Time Zones Each with 1 Hour Difference

34 Global Time Zones

35 Each Longitude has Different Time A country may have Different Longitude A country may have Different Time So Longitude Passes thru Middle of the Country is set as Standard Meridian & Time Standard Time

36

37 Indian Standard Time (IST) Longitudinal Extent = 68 0 E 97 0 E 82 ½ 0 E Passes thru Middle of the Country 82 ½ 0 E is the Standard Meridian

38 Activity 3 (Complete the Table)

39 S u n d a y A m M o n d a y n o o n 1 p m

40 Sunday Monday International Date Line At Longitude East & West there is 24 Hours Difference Same place with 24 Hours difference

41 International Date Line Avoided Land Area Thru Pacific Ocean It is an Imaginary Line Travelers who cross this from East Add 1 Day & from West Deduct 1 Day

42 Activity 4 (Globe Observation) Observe the Globe and : 1. Find out the International Date Line 2. Identify the Continents situated to the West & East of this Line 3. Which Travelers of these Continents will gain one Day on crossing International Date Line 4. 5.

43 International Date Line West East Asia & Australia N America & S America Those who cross this N&S America will Line and go to gain One Day

44 Activity 5 (Time Calculation) What will be the time in New York (74 0 W) when it is noon at Greenwich Longitudnal Difference between New York & Greenwich = 74 0 Time for 1 0 Longitude Time for 74 0 Longitude = 4 Minuts = 4 x 74 = 296 Min. = 4 Hours 56 Min. As New York is in West = Greenwich Time Time Difference = 12 4 H 56 M = 7.04 am

45 Additional Activities

46 Michael Angelo M.A. MA (Phi.,His.) HSA(Social Science) St. Mary s H.S. Palliport

November 20, NOTES ES Rotation, Rev, Tilt.notebook. vertically. night. night. counterclockwise. counterclockwise. East. Foucault.

November 20, NOTES ES Rotation, Rev, Tilt.notebook. vertically. night. night. counterclockwise. counterclockwise. East. Foucault. NOTES ES, Rev,.notebook, and Rotates on an imaginary axis that runs from the to the South North Pole Pole vertically North The of the axis points to a point in space near day Pole Polaris night Responsible

More information

Geography Class 6 Chapters 3 and

Geography Class 6 Chapters 3 and CHAPTER 3 MOTIONS OF THE EARTH The Earth is always travelling in Space. That makes each person on Earth, a Space Traveller. No one feels the movement of the Earth because humans are too tiny when compared

More information

Lecture #03. January 20, 2010, Wednesday

Lecture #03. January 20, 2010, Wednesday Lecture #03 January 20, 2010, Wednesday Causes of Earth s Seasons Earth-Sun geometry Day length Solar angle (beam spread) Atmospheric beam depletion Shape and Size of the Earth North Pole E Geoid: not

More information

MOTIONS OF THE EARTH. Figure 3.1 : Inclination of the Earth s axis and the orbital plane. Figure 3.2 : Day and Night on the Earth due to rotation

MOTIONS OF THE EARTH. Figure 3.1 : Inclination of the Earth s axis and the orbital plane. Figure 3.2 : Day and Night on the Earth due to rotation 3 Let s Do Take a ball to represent the earth and a lighted candle to represent the sun. Mark a point on the ball to represent a town X. Place the ball in such a way that the town X is in darkness. Now

More information

Module 2: Mapping Topic 2 Content: Determining Latitude and Longitude Notes

Module 2: Mapping Topic 2 Content: Determining Latitude and Longitude Notes Introduction In order to more easily locate points on a globe or map, cartographers designed a system of imaginary vertical lines (also called parallels) and horizontal lines (also called meridians) that

More information

Earth s Orbit. Sun Earth Relationships Ridha Hamidi, Ph.D. ESCI-61 Introduction to Photovoltaic Technology

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

More information

Seasons. What causes the seasons?

Seasons. What causes the seasons? Questions: Seasons What causes the seasons? How do we mark the progression of the seasons? What is the seasonal motion of the sun in the sky? What could cause the seasonal motion of the sun to change over

More information

Aim: What causes Seasons?

Aim: What causes Seasons? Notepack 28 Aim: What causes Seasons? Do Now: What is the difference between revolution and rotation? Earth s rotation The Earth rotates on its axis (imaginary vertical line around which Earth spins) every

More information

The Earth is a Rotating Sphere

The Earth is a Rotating Sphere The Earth is a Rotating Sphere The Shape of the Earth Earth s Rotation ( and relative movement of the Sun and Moon) The Geographic Grid Map Projections Global Time The Earth s Revolution around the Sun

More information

L.O: EARTH'S 23.5 DEGREE TILT ON ITS AXIS GIVES EARTH ITS SEASONS March 21 (SPRING), June 21(SUMMER), Sept 22 (AUTUMN) & Dec 21(WINTER)

L.O: EARTH'S 23.5 DEGREE TILT ON ITS AXIS GIVES EARTH ITS SEASONS March 21 (SPRING), June 21(SUMMER), Sept 22 (AUTUMN) & Dec 21(WINTER) L.O: EARTH'S 23.5 DEGREE TILT ON ITS AXIS GIVES EARTH ITS SEASONS March 21 (SPRING), June 21(SUMMER), Sept 22 (AUTUMN) & Dec 21(WINTER) 1. The apparent daily path of the Sun changes with the seasons because

More information

Seasons ASTR 101 2/12/2018

Seasons ASTR 101 2/12/2018 Seasons ASTR 101 2/12/2018 1 What causes the seasons? Perihelion: closest to Sun around January 4 th Northern Summer Southern Winter 147 million km 152 million km Aphelion (farthest to Sun) around July

More information

HEATING THE ATMOSPHERE

HEATING THE ATMOSPHERE HEATING THE ATMOSPHERE Earth and Sun 99.9% of Earth s heat comes from Sun But

More information

The Earth-Moon-Sun System

The Earth-Moon-Sun System chapter 7 The Earth-Moon-Sun System section 2 Time and Seasons What You ll Learn how to calculate time and date in different time zones how to distinguish rotation and revolution what causes seasons Before

More information

Daylight Data: Days and Nights Around the World

Daylight Data: Days and Nights Around the World Days & Nights 1 Name Daylight Data: Days and Nights Around the World Purpose: To investigate the number of hours of daylight received by countries at different latitudes. Materials: Daylight data sheet

More information

SUBJECT : GEOGRAPHY ROTATION AND REVOLUTION This paper consists of 5 printed pages.

SUBJECT : GEOGRAPHY ROTATION AND REVOLUTION This paper consists of 5 printed pages. SUBJECT : GEOGRAPHY ROTATION AND REVOLUTION 2017-2018 This paper consists of 5 printed pages. 1. Name the motions of the earth. A. They are Rotation and Revolution. 2. What is Rotation? A. Rotation is

More information

The following terms are some of the vocabulary that students should be familiar with in order to fully master this lesson.

The following terms are some of the vocabulary that students should be familiar with in order to fully master this lesson. Lesson 211: EARTH'S SEASONS Students learn the complex geometry and planetary motions that cause Earth to have four distinct seasons. Fundamental Questions Attempting to give thorough and reasonable answers

More information

What causes Earth to have seasons?

What causes Earth to have seasons? Seasons What causes Earth to have seasons? The distance to Earth does NOT cause seasons seasons are caused by : 1. the tilt of the earth on its axis (23.5 degrees) 2.revolution of earth around the sun

More information

THE EARTH AND ITS REPRESENTATION

THE EARTH AND ITS REPRESENTATION UNIT 7 THE EARTH AND ITS REPRESENTATION TABLE OF CONTENTS 1 THE EARTH AND THE SOLAR SYSTEM... 2 2 THE EARTH S MOVEMENTS... 2 2.1 Rotation.... 2 2.2 The revolution of the Earth: seasons of the year....

More information

Cartesian Coordinates Need two dimensional system 2 number lines perpendicular to each other X-axis is horizontal Y-axis is vertical Position relative

Cartesian Coordinates Need two dimensional system 2 number lines perpendicular to each other X-axis is horizontal Y-axis is vertical Position relative General Physical Science Chapter 15 Place and Time Space and Time Einstein Space and time related Single entity Time is the 4 th dimension! Cartesian Coordinates Need some system to tell us where something

More information

GEOGRAPHY STD.9 LATITUDE & LONGITUDE

GEOGRAPHY STD.9 LATITUDE & LONGITUDE GEOGRAPHY STD.9 LATITUDE & LONGITUDE 1. What is the Earth Grid? A. The complete network of meridians & parallels is called the earth Grid. 2. What is Latitude? A. The latitude of a place is the distance

More information

Reasons for the seasons - Rebecca Kaplan

Reasons for the seasons - Rebecca Kaplan Reasons for the seasons - Rebecca Kaplan https://www.youtube.com/watch?v=dd_8jm5ptlk https://www.timeanddate.com/worldclock/sunearth.html https://www.time.gov/ https://www.space.com/33790-harvest-moon-guide.html

More information

Latitude & Longitude Study Guide

Latitude & Longitude Study Guide Latitude & Longitude Study Guide Name: Date: Section: Label the important Latitude lines on the diagram below. Include the degree measurements The equator is located at zero degrees latitude. The equator

More information

UNIT 1: THE PLANET EARTH

UNIT 1: THE PLANET EARTH UNIT 1: THE PLANET EARTH How many planets are there in our Solar System? What is the Equator? Why does life exist in our planet? Does The Earth move? What is a map? 1. Planet Earth TOPICS 2. Movements

More information

LAB: What Events Mark the Beginning of Each Season?

LAB: What Events Mark the Beginning of Each Season? Name: Date: LAB: What Events Mark the Beginning of Each Season? The relationship between the Sun and Earth have been used since antiquity to measure time. The day is measured by the passage of the Sun

More information

Earth Motions Packet 14

Earth Motions Packet 14 Earth Motions Packet 14 Your Name Group Members Score Minutes Standard 4 Key Idea 1 Performance Indicator 1.1 Explain complex phenomena, such as tides, variations in day length, solar insolation, apparent

More information

TILT, DAYLIGHT AND SEASONS WORKSHEET

TILT, DAYLIGHT AND SEASONS WORKSHEET TILT, DAYLIGHT AND SEASONS WORKSHEET Activity Description: Students will use a data table to make a graph for the length of day and average high temperature in Utah. They will then answer questions based

More information

Downloaded from

Downloaded from I II III IV V VI Define the following terms:- a) Orbitb) Meteoroids c) Celestial bodies GEOGRAPHY ASSIGNMENTS The Earth In The Solar System d) Satellite e) Comets Give one word answers:- a) Blue planet

More information

PHYSICAL GEOGRAPHY. By Brett Lucas

PHYSICAL GEOGRAPHY. By Brett Lucas PHYSICAL GEOGRAPHY By Brett Lucas INTRODUCTION Introduction to Earth Geography as a Field of Learning Geography is from two Greek words, Geo Earth, and Graphien to write. Elements/Branches of Geography

More information

7a LATITUDE LONGITUDE.notebook. September 19, 2017

7a LATITUDE LONGITUDE.notebook. September 19, 2017 1 PANGEA Add a pangea link to here 2 There are 4 hemispheres Hemispheres are divided using the Equator (north and south) and Prime Meridian (west and east) 3 4 Northern Hemisphere Equator SOUTHERN OCEAN

More information

Exploring more with seasons Name: Block

Exploring more with seasons Name: Block Exploring more with seasons Name: Block Understanding Latitude of the Noon Sun The position of the Sun in the sky changes during the year as Earth orbits the Sun on its tilted axis. This causes a change

More information

Seasonal & Diurnal Temp Variations. Earth-Sun Distance. Eccentricity 2/2/2010. ATS351 Lecture 3

Seasonal & Diurnal Temp Variations. Earth-Sun Distance. Eccentricity 2/2/2010. ATS351 Lecture 3 Seasonal & Diurnal Temp Variations ATS351 Lecture 3 Earth-Sun Distance Change in distance has only a minimal effect on seasonal temperature. Note that during the N. hemisphere winter, we are CLOSER to

More information

STANDARD. S6E1 d. Explain the motion of objects in the day/night sky in terms of relative position.

STANDARD. S6E1 d. Explain the motion of objects in the day/night sky in terms of relative position. STANDARD S6E1 d. Explain the motion of objects in the day/night sky in terms of relative position. S6E2 b. Explain the alignment of the earth, moon, and sun during solar and lunar eclipses. c. Relate the

More information

For most observers on Earth, the sun rises in the eastern

For most observers on Earth, the sun rises in the eastern 632 CHAPTER 25: EARTH, SUN, AND SEASONS WHAT IS THE SUN S APPARENT PATH ACROSS THE SKY? For most observers on Earth, the sun rises in the eastern part of the sky. The sun reaches its greatest angular altitude

More information

Introduction To Modern Astronomy I: Solar System

Introduction To Modern Astronomy I: Solar System ASTR 111 003 Fall 2007 Lecture 02 Sep. 10, 2007 Introduction To Modern Astronomy I: Solar System Introducing Astronomy (chap. 1-6) Planets and Moons (chap. 7-15) Chap. 16: Our Sun Chap. 28: Search for

More information

Geographic Grid -Latitudes and Longitudes

Geographic Grid -Latitudes and Longitudes GEOGRAPHY STD 9 Geographic Grid -Latitudes and Longitudes 2018-2019 Q1. Define Geographic Grid. The network of latitudes and longitudes are known as Geographic Grid. They help us to locate places on the

More information

01) The Sun s rays strike the surface of the Earth at 90 degrees at the on December 22.

01) The Sun s rays strike the surface of the Earth at 90 degrees at the on December 22. Package Title: Testbank Course Title: Introducing Physical Geography 6e Chapter Number: 01 Question Type: Multiple Choice 01) The Sun s rays strike the surface of the Earth at 90 degrees at the on December

More information

DR. M. K. K. Arya Model School Ch- 3 Motions of the Earth (Geography) Class-VI Assignment

DR. M. K. K. Arya Model School Ch- 3 Motions of the Earth (Geography) Class-VI Assignment DR. M. K. K. Arya Model School Ch- 3 Motions of the Earth (Geography) Class-VI Assignment 1 What are axis and orbit? A Axis- The axis of the Earth is an imaginary line joining the North pole with the South

More information

What causes the seasons? 2/11/09

What causes the seasons? 2/11/09 2/11/09 We can recognize solstices and equinoxes by Sun s path across sky: Summer solstice: Highest path, rise and set at most extreme north of due east. Winter solstice: Lowest path, rise and set at most

More information

Exercise 6. Solar Panel Orientation EXERCISE OBJECTIVE DISCUSSION OUTLINE. Introduction to the importance of solar panel orientation DISCUSSION

Exercise 6. Solar Panel Orientation EXERCISE OBJECTIVE DISCUSSION OUTLINE. Introduction to the importance of solar panel orientation DISCUSSION Exercise 6 Solar Panel Orientation EXERCISE OBJECTIVE When you have completed this exercise, you will understand how the solar illumination at any location on Earth varies over the course of a year. You

More information

C) the seasonal changes in constellations viewed in the night sky D) The duration of insolation will increase and the temperature will increase.

C) the seasonal changes in constellations viewed in the night sky D) The duration of insolation will increase and the temperature will increase. 1. Which event is a direct result of Earth's revolution? A) the apparent deflection of winds B) the changing of the Moon phases C) the seasonal changes in constellations viewed in the night sky D) the

More information

What Is the Relationship Between Earth s Tilt and the Seasons?

What Is the Relationship Between Earth s Tilt and the Seasons? Learning Set 2 Why Are There Differences in Temperature? Review Images and Graphics While reading about Earth s tilt and the seasons, pay particular attention to the graphics included. How do they help

More information

NATS 101 Section 13: Lecture 7. The Seasons

NATS 101 Section 13: Lecture 7. The Seasons NATS 101 Section 13: Lecture 7 The Seasons The Importance of Seasons The seasons govern both natural and human patterns of behavior. Some big and small examples: Planting and harvesting of crops Migratory

More information

March 21. Observer located at 42 N. Horizon

March 21. Observer located at 42 N. Horizon March 21 Sun Observer located at 42 N Horizon 48 June 21 March 21 A 48 90 S 23.5 S 0 23.5 N 42 N 90 N Equator (June 21) C (March 21) B A 71.5 48 Horizon 24.5 Observer Sun 40 Observer Sun 22 Observer Sun

More information

Lesson 20: The Earth in its Orbit

Lesson 20: The Earth in its Orbit 291 Lesson 20: The Earth in its Orbit Recall that the Earth s orbit around the un is an ellipse which is almost a perfect circle. The average distance from the un to the Earth is 152,100,000 km (to the

More information

Reasons for the Seasons

Reasons for the Seasons Regents Earth Science Name: Unit 6: Astronomy Date: Section: LAB # Reasons for the Seasons Introduction: The units of time that mankind has devised are all imaginary. We base them on seasonal changes and

More information

Astronomy 291. Professor Bradley M. Peterson

Astronomy 291. Professor Bradley M. Peterson Astronomy 291 Professor Bradley M. Peterson The Sky As a first step, we need to understand the appearance of the sky. Important points (to be explained): The relative positions of stars remain the same

More information

Seasons, Global Wind and Climate Study Guide

Seasons, Global Wind and Climate Study Guide Seasons, Global Wind and Climate Study Guide Seasons 1. Know what is responsible for the change in seasons on Earth. 2. Be able to determine seasons in the northern and southern hemispheres given the position

More information

GLOBE : LATITUDES AND LONGITUDES

GLOBE : LATITUDES AND LONGITUDES 2 Figure 2.1 : Globe Let s Do Take a big round potato or a ball. Pierce a knitting needle through it. The needle resembles the axis shown in a globe. You can now move the potato or the ball around this

More information

9/19/2018. Dr. Hoch. RGPL 103 Global Cities: Planning and Development.

9/19/2018. Dr. Hoch. RGPL 103 Global Cities: Planning and Development. Dr. Hoch RGPL 103 Global Cities: Planning and Development Dr. Hoch Email: rhoch@iup.edu 1 2 Earth s Orbit Around Sun Aphelion July 6 (12:00) Perihelion Jan 3 (00:00) EARTH 152.5 Million Km 147.5 Mil. Km

More information

The Earth, Moon, and Sky. Lecture 5 1/31/2017

The Earth, Moon, and Sky. Lecture 5 1/31/2017 The Earth, Moon, and Sky Lecture 5 1/31/2017 From Last Time: Stable Orbits The type of orbit depends on the initial speed of the object Stable orbits are either circular or elliptical. Too slow and gravity

More information

Lecture 2 Motions in the Sky September 10, 2018

Lecture 2 Motions in the Sky September 10, 2018 1 Lecture 2 Motions in the Sky September 10, 2018 2 What is your year in school? A. New freshman B. Returning freshman C. Sophomore D. Junior E. Senior F. I ve been here, like, forever 3 What is your major?

More information

Orbital Mechanics. CTLA Earth & Environmental Science

Orbital Mechanics. CTLA Earth & Environmental Science Orbital Mechanics CTLA Earth & Environmental Science The Earth Spherical body that is flattened near the poles due to centrifugal force (rotation of the Earth) 40,074 KM across at the Equator 40,0007 KM

More information

Meteorology Pretest on Chapter 2

Meteorology Pretest on Chapter 2 Meteorology Pretest on Chapter 2 MULTIPLE CHOICE 1. The earth emits terrestrial radiation a) only at night b) all the time c) only during winter d) only over the continents 2. If an imbalance occurs between

More information

The Seasons. Presented by Kesler Science

The Seasons. Presented by Kesler Science The Seasons Presented by Kesler Science Essential Questions: 1. What causes day and night? 2. What causes the seasons to change? Quick Action INB Template Rotation and Revolution 1. Cut out the template

More information

Chapter 1 Section 2. Land, Water, and Climate

Chapter 1 Section 2. Land, Water, and Climate Chapter 1 Section 2 Land, Water, and Climate Vocabulary 1. Landforms- natural features of the Earth s land surface 2. Elevation- height above sea level 3. Relief- changes in height 4. Core- most inner

More information

The position of the Sun on the celestial sphere at the solstices and the equinoxes.

The position of the Sun on the celestial sphere at the solstices and the equinoxes. 1 2 3 4 5 6 7 8 9 10 11 12 13 EARTH IN SPACE Tillery, Chapter 18 Artist's concept of the solar system. Shown are the orbits of the planets, Earth being the third planet from the Sun, and the other planets

More information

Day, Night, Year, and Seasons

Day, Night, Year, and Seasons Welcome Astronomers to the Sun, Moon, and Earth! The relationship between the Sun, Moon, and Earth is very important to the existence of life on Earth. Our quest is to find out how their relationships

More information

Discovering the Night Sky

Discovering the Night Sky Discovering the Night Sky Guiding Questions 1. What role did astronomy play in ancient civilizations? 2. Are the stars that make up a constellation actually close to one another? 3. Are the same stars

More information

Discovering the Night Sky

Discovering the Night Sky Guiding Questions Discovering the Night Sky 1. What role did astronomy play in ancient civilizations? 2. Are the stars that make up a constellation actually close to one another? 3. Are the same stars

More information

Astronomy 122 Section 1 TR Outline. The Earth is Rotating. Question Digital Computer Laboratory

Astronomy 122 Section 1 TR Outline. The Earth is Rotating. Question Digital Computer Laboratory Astronomy 122 Section 1 TR 1300-1350 Outline 1320 Digital Computer Laboratory Leslie Looney Phone: 244-3615 Email: lwlw@wuiucw. wedu Office: Astro Building #218 Office Hours: T 10:30-11:30 a.m. or by appointment

More information

Knowing the Heavens. Chapter Two. Guiding Questions. Naked-eye (unaided-eye) astronomy had an important place in ancient civilizations

Knowing the Heavens. Chapter Two. Guiding Questions. Naked-eye (unaided-eye) astronomy had an important place in ancient civilizations Knowing the Heavens Chapter Two Guiding Questions 1. What role did astronomy play in ancient civilizations? 2. Are the stars that make up a constellation actually close to one another? 3. Are the same

More information

James T. Shipman Jerry D. Wilson Charles A. Higgins, Jr. Chapter 15 Place and Time

James T. Shipman Jerry D. Wilson Charles A. Higgins, Jr. Chapter 15 Place and Time James T. Shipman Jerry D. Wilson Charles A. Higgins, Jr. Chapter 15 Place and Time Place & Time Read sections 15.5 and 15.6, but ignore the math. Concentrate on those sections that help explain the slides.

More information

Downloaded from

Downloaded from Geo Globe : Latitudes and Longitudes 1.Suppose the time at 30 east is 2 p.m. then what is the time at Greenwich? (A) 2 p.m. (B) 12 p.m. (C) 1 p.m. (D) Cannot find 2.What does the term 'Grid' mean

More information

5 - Seasons. Figure 1 shows two pictures of the Sun taken six months apart with the same camera, at the same time of the day, from the same location.

5 - Seasons. Figure 1 shows two pictures of the Sun taken six months apart with the same camera, at the same time of the day, from the same location. ASTR 110L 5 - Seasons Purpose: To plot the distance of the Earth from the Sun over one year and to use the celestial sphere to understand the cause of the seasons. What do you think? Write answers to questions

More information

Chapter 4: Weather & Climate. (Pg )

Chapter 4: Weather & Climate. (Pg ) Chapter 4: Weather & Climate (Pg. 54 73) Introduction: Distinguish between the terms weather & climate. P. 54 Weather: the state of the atmosphere at any one place or time. (short term) Climate: the average

More information

Complete the following: a. Lines of latitude are parallel to the equator. Name:

Complete the following: a. Lines of latitude are parallel to the equator. Name: Name: Date: Social Studies Introduction: Basic Geography Period: Latitude Latitude is defined as a measurement of distance in degrees north and south of the equator. The word latitude is derived from the

More information

Earth is rotating on its own axis

Earth is rotating on its own axis Earth is rotating on its own axis 1 rotation every day (24 hours) Earth is rotating counterclockwise if you are looking at its North pole from other space. Earth is rotating clockwise if you are looking

More information

Chapter 1: Discovering the Night Sky. The sky is divided into 88 unequal areas that we call constellations.

Chapter 1: Discovering the Night Sky. The sky is divided into 88 unequal areas that we call constellations. Chapter 1: Discovering the Night Sky Constellations: Recognizable patterns of the brighter stars that have been derived from ancient legends. Different cultures have associated the patterns with their

More information

Tilted Earth Lab Why Do We Have Seasons?

Tilted Earth Lab Why Do We Have Seasons? Name Class Tilted Earth Lab Why Do We Have Seasons? Purpose: In this investigation, you are going to figure out how the axis (or tilt) of the Earth, combined with the revolution (orbit) of Earth around

More information

Practice Seasons Moon Quiz

Practice Seasons Moon Quiz 1. Which diagram represents the tilt of Earth's axis relative to the Sun's rays on December 15? A) B) C) D) 2. The diagram below represents Earth in space on the first day of a season. 5. Base your answer

More information

Appearance of the Sky Orientation Motion of sky Seasons Precession (?)

Appearance of the Sky Orientation Motion of sky Seasons Precession (?) Today Appearance of the Sky Orientation Motion of sky Seasons Precession (?) The Celestial Sphere Stars at different distances all appear to lie on the celestial sphere. The ecliptic is the Sun s apparent

More information

One sine wave is 7.64 minutes peak to peak variation. Two sine waves is 9.86

One sine wave is 7.64 minutes peak to peak variation. Two sine waves is 9.86 WHY THE SUN IS SOMETIMES FAST AND SOMETIMES SLOW As the earth orbits the sun in an ellipse, it goes faster approaching the sun and slower when receding, just like when you throw a ball up in the air and

More information

Appearance of the Sky Orientation Motion of sky Seasons Precession (?)

Appearance of the Sky Orientation Motion of sky Seasons Precession (?) Today Appearance of the Sky Orientation Motion of sky Seasons Precession (?) The Celestial Sphere Stars at different distances all appear to lie on the celestial sphere. The ecliptic is the Sun s apparent

More information

Before you Sit. Please Pick-up: Blue Information Sheet for Evening Observing. 1 Red and 1 Blue ticket for Observing/ Planetarium

Before you Sit. Please Pick-up: Blue Information Sheet for Evening Observing. 1 Red and 1 Blue ticket for Observing/ Planetarium Before you Sit Please Pick-up: Blue Information Sheet for Evening Observing. 1 Red and 1 Blue ticket for Observing/ Planetarium Evening Observing Observing at the Brooks Observatory: Three different weeks

More information

Time, coordinates and how the Sun and Moon move in the sky

Time, coordinates and how the Sun and Moon move in the sky Time, coordinates and how the Sun and Moon move in the sky Using the colors and magnitudes of quasars drawn from the SDSS Catalog Archive Server to distinguish quasars from stars using the light they emit

More information

Chapter S1 Celestial Timekeeping and Navigation. How do we define the day, month, year, and planetary time periods?

Chapter S1 Celestial Timekeeping and Navigation. How do we define the day, month, year, and planetary time periods? Chapter S1 Celestial Timekeeping and Navigation S1.1 Astronomical Time Periods Our goals for learning:! How do we define the day, month, year, and planetary time periods?! How do we tell the time of day?!

More information

Introduction to Astronomy

Introduction to Astronomy Introduction to Astronomy AST0111-3 (Astronomía) Semester 2014B Prof. Thomas H. Puzia Theme Our Sky 1. Celestial Sphere 2. Diurnal Movement 3. Annual Movement 4. Lunar Movement 5. The Seasons 6. Eclipses

More information

Chapter 1 Introduction to the Earth

Chapter 1 Introduction to the Earth Chapter 1 Introduction to the Earth What is Geography? The study of the earth as the home of humankind. Greek - Eratosthenes Father of Geography Geo means Earth Graphy means to write Study how things are

More information

Fundamentals of Satellite technology

Fundamentals of Satellite technology Fundamentals of Satellite technology Prepared by A.Kaviyarasu Assistant Professor Department of Aerospace Engineering Madras Institute Of Technology Chromepet, Chennai Orbital Plane All of the planets,

More information

Section. 1 Our Planet, Earth. Prepare to Read

Section. 1 Our Planet, Earth. Prepare to Read 1 Section Step-by-Step Instruction Objectives Social Studies 1. Learn about Earth s movement in relation to the sun. 2. Explore seasons and latitude. Reading/Language Arts Use context clues from surrounding

More information

4 Solar System and Time

4 Solar System and Time 4 olar ystem and Time 4.1 The Universe 4.1.1 Introduction The Universe consists of countless galaxies distributed throughout space. The bodies used in astro navigation belong to the Galaxy known as the

More information

THE SEASONS PART I: THE EARTH S ORBIT & THE SEASONS

THE SEASONS PART I: THE EARTH S ORBIT & THE SEASONS THE SEASONS To observers on earth, it appears that the earth stands still and everything else moves around it. Thus, in trying to imagine how the universe works, it made good sense to people in ancient

More information

The Earth and its representation

The Earth and its representation GEOGRAPHY UNIT 1 The Earth and its representation THE SOLAR SYSTEM AND THE EARTH THE SOLAR SYSTEM The solar system is a planetary system. Is a group of astronomical objects who surround a star, in this

More information

Sun or Moon Rise/Set Table for One Year

Sun or Moon Rise/Set Table for One Year 1.4l interpret charts and diagrams showing the variation in daylight length during a year 1.4m demonstrate an understanding that there are seasonal variations in the rising and setting of the un Daylight

More information

Earth is tilted (oblique) on its Axis!

Earth is tilted (oblique) on its Axis! MONDAY AM Radiation, Atmospheric Greenhouse Effect Earth's orbit around the Sun is slightly elliptical (not circular) Seasons & Days Why do we have seasons? Why aren't seasonal temperatures highest at

More information

Knowing the Heavens. Goals: Constellations in the Sky

Knowing the Heavens. Goals: Constellations in the Sky Goals: Knowing the Heavens To see how the sky changes during a night and from night to night. To measure the positions of stars in celestial coordinates. To understand the cause of the seasons. Constellations

More information

LECTURE ONE The Astronomy of Climate

LECTURE ONE The Astronomy of Climate LECTURE ONE The Astronomy of Climate Agricultural Science Climatology Semester 2, 2006 Richard Thompson http://www.physics.usyd.edu.au/ag/agschome.htm Course Coordinator: Mike Wheatland AMMENDED TIMETABLE

More information

Viewed from Earth's north pole, the rotation of Earth and its moon are counter-clockwise.!

Viewed from Earth's north pole, the rotation of Earth and its moon are counter-clockwise.! The Earth rotates around once in 24 hours The time it takes for the Earth to rotate completely around once is what we call a day. It's Earth's rotation that gives us night and day. Viewed from Earth's

More information

Knowing the Heavens. Goals: Constellations in the Sky

Knowing the Heavens. Goals: Constellations in the Sky Goals: Knowing the Heavens To see how the sky changes during a night and from night to night. To measure the positions of stars in celestial coordinates. To understand the cause of the seasons. Constellations

More information

Aileen A. O Donoghue Priest Associate Professor of Physics

Aileen A. O Donoghue Priest Associate Professor of Physics SOAR: The Sky in Motion Life on the Tilted Teacup Ride The Year Aileen A. O Donoghue Priest Associate Professor of Physics Celestial Coordinates Right Ascension RA or From prime meridian (0 h ) to 23 h

More information

Seasons Page 520. A. What Causes Seasons?

Seasons Page 520. A. What Causes Seasons? Seasons Page 520 A. What Causes Seasons? 1. Seasons are caused by the tilt of the earth s axis as it moves around the sun. 2. Seasons happen because the Earth is tilted on its axis at a 23.5 angle. 3.

More information

Reason for the Seasons Workbook

Reason for the Seasons Workbook Name Reason for the Seasons Workbook Clipart from the Florida Center for Instructional Technology (FCIT) Table of Contents What Causes the Seasons Factsheet and Activity............. 1 Angle of Light Rays

More information

Chapter: The Earth-Moon-Sun System

Chapter: The Earth-Moon-Sun System Chapter 7 Table of Contents Chapter: The Earth-Moon-Sun System Section 1: Earth in Space Section 2: Time and Seasons Section 3: Earth s Moon 1 Earth in Space Earth s Size and Shape Ancient Measurements

More information

Cardinal and Intermediate Directions:

Cardinal and Intermediate Directions: Name Period Parent Signature Due Date: (TBA) Geography/Map Skills Study Guide Continents and Oceans of the World: Label the continents (7) and oceans (4) on the lines below the map. 1 11 3 5 4 8 2 9 10

More information

1/3/12. Chapter: The Earth-Moon-Sun System. Ancient Measurements. Earth s Size and Shape. Ancient Measurements. Ancient Measurements

1/3/12. Chapter: The Earth-Moon-Sun System. Ancient Measurements. Earth s Size and Shape. Ancient Measurements. Ancient Measurements // Table of Contents Chapter: The Earth-Moon-Sun System Section : Chapter 7 Section : Section : Earth s Size and Shape Ancient Measurements First, no matter where you are on Earth, objects fall straight

More information

ME 476 Solar Energy UNIT THREE SOLAR RADIATION

ME 476 Solar Energy UNIT THREE SOLAR RADIATION ME 476 Solar Energy UNIT THREE SOLAR RADIATION Unit Outline 2 What is the sun? Radiation from the sun Factors affecting solar radiation Atmospheric effects Solar radiation intensity Air mass Seasonal variations

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

Chapter S1 Lecture. The Cosmic Perspective Seventh Edition. Celestial Timekeeping and Navigation Pearson Education, Inc.

Chapter S1 Lecture. The Cosmic Perspective Seventh Edition. Celestial Timekeeping and Navigation Pearson Education, Inc. Chapter S1 Lecture The Cosmic Perspective Seventh Edition Celestial Timekeeping and Navigation 2014 Pearson Education, Inc. Celestial Timekeeping and Navigation 2014 Pearson Education, Inc. S1.1 Astronomical

More information

Bell Ringer: Page 31 Yes...you are skipping pages!!!!

Bell Ringer: Page 31 Yes...you are skipping pages!!!! Bell Ringer: Page 31 Yes...you are skipping pages!!!! 5 Minutes: Write about a geographic feature that interests you. Write down what you want to know about that feature and how you might answer your own

More information

ClassAction: Coordinates and Motions Module Instructor s Manual

ClassAction: Coordinates and Motions Module Instructor s Manual ClassAction: Coordinates and Motions Module Instructor s Manual Table of Contents Section 1: Warm-up Questions...3 The Sun s Path 1 4 Section 2: General Questions...5 Sledding or Going to the Beach...6

More information