The Reasons for the Seasons. By Allegra Dickson

Size: px
Start display at page:

Download "The Reasons for the Seasons. By Allegra Dickson"

Transcription

1 The Reasons for the Seasons By Allegra Dickson

2 Vocabulary of the Seasons: 1. Axis- a line from the North Pole to the South Pole which is the fxed point around which the Earth rotates. The axis of the Earth is tilted 23.4 degrees and causes the seasons to change. 2. Orbit- Earth's orbit is it's elliptical path around the run. A complete orbit is the completion of a year. 3. Ellipse- a circle stretched out in one direction. The earth's orbit is an ellipse. 4. Prediction- a educated guess about what will happen in the future. 5. Observation- watching and taking note of things that happen around you.

3 ...continued 6. Direct Sunlight- when the sun is directly above a certain part of the earth, they experience more intense heat.(summer) 7. Indirect Sunlight-when the sun hits a certain part of Earth on an angle, they experience less intense heat. (winter) 8. Equator- an imaginary line that divides the earth I half, North and South. 9. Northern Hemisphere- the area of the earth that is North of the Equator. 10.Southern Hemisphere- the area of Earth that is South of the Equator. 11. Equinox- happens twice a year, during Spring and Fall, when Earth's axis is tilted neither toward nor away from the sun. 12. Solstice- happens twice a year, during Winter and Summer, when the sun has reached either its northern or southern most position relative to Earth.

4 Emily and Jimmy were good friends. One day in September after school, they were playing outside. Emily stopped and wondered. What are you thinking about, Emily? Jimmy asked. Why do you think it gets cold when school starts? Emily asked. What do you mean? Asked Jimmy. Well, in the beginning of the school year, we can still wear shorts and tshirts. Then, when Halloween comes it gets a little bit colder and we need to wear warmer clothes.

5 Oh yeah! And during Christmas time we all need to wear hats, scarves and gloves because it's much colder outside. You know what else? It gets darker, faster too! Jimmy continued. Yeah, I know what you mean. When my mom picks me up from my friends' houses it feels like it's night time because it's dark! My favorite time of the year is the spring time when it gets warmer again! Then the sun stays out longer and I can wear shorts again!

6 So then what makes the seasons change? Jimmy thought for a moment, Maybe it has to do with time. Like, if you spend just enough time, a buzzer goes off somewhere. That means it's time to change seasons Emily and Jimmy looked at each other for a few seconds and began to giggle. Haha! I don't think that the seasons are on a timer that has a buzzer. And if they did have a buzzer, who would be in charge of changing the seasons? Emily said. She was right, the seasons are not controlled by anyone.

7 Hmm.. I know! Maybe it has something to do with how far away the Sun is from Earth throughout the year! Emily exclaimed. What do you mean, throughout the year? Jimmy asked her. Well, the Sun is the center of our Solar System, which means that all the planets orbit around it. So maybe when Earth orbits the sun, there are times when the Sun is farther away. That would be Fall and Winter.

8 Yeah! Maybe that's it! And when the Sun is closest to Earth, that's when we have Spring and Summer! Jimmy agreed. Suddenly, a voice spoke out that was not Jimmy or Emily. Now just a minute there kids, that's not why the seasons change. Emily and Jimmy looked around the backyard, but couldn't see anyone around them. The shrugged their shoulders in confusion. Look up here! said the voice.

9 Jimmy and Emily looked up to fnd that the sun was talking to them! Hi there, Jimmy and Emily. I was up here listening to you two talking about what causes the seasons to change. I want to help. Let me start by telling you that a great place to start is with predictions. Let me ask you a question. Would you believe me if I told you that I, the Sun, am actually closest to Earth on January 4th of each year? No way! That wouldn't make sense with our prediction that the Sun has to be farther away from Earth during Fall and Winter. Jimmy said.

10 It's actually true, said Sun, When Earth makes its orbit, or path, around me, the Sun, it is closest to me during the winter time. Let me explain by showing you Earth's orbit. Wait, Earth doesn't travel around the Sun in a circle? Emily asked. No, it doesn't. In fact, Earth travels around the Sun in a shape that it called and ellipse. An ellipse is close to the shape of a circle, but it isn't the same. It looks like a circle that's been a little stretched out in on direction, said Jimmy. That's what an ellipse is, Jimmy! Great observation

11 What's that line going diagonally through the earth? Asked Emily. Great question, Emily, replied the sun, I was just getting to that. Earth orbits, or revolves, around me on its axis. The axis is an imaginary line from the North to the South Pole and it shows that Earth is slightly tilted as it travels through it's orbit. Well, what does that have to do with the seasons? Jimmy asked. Earth orbits on its axis and that determines how much direct sunlight each part of the earth receives. If the earth didn't orbit on its axis, then we wouldn't have seasons. We would have the same weather conditions all through the year, Sun answered. Okay, so during the winter, what does the earth look like? The axis of the earth stays pointing in the same direction throughout its orbit around the sun. Because of this, certain parts of the earth receive different kinds of sunlight at a specific time.

12 During the Winter, the North Pole is tilted further away from me. So when I give off light and heat to the earth, the North Pole receives it on an angle and not directly. What's the difference between direct sunlight and receiving sunlight on an angle? asked Jimmy. Good question. When your part of the earth receives direct sunlight, that's when you experience warm weather, or Summer. When you receive sunlight on an angle, that's called indirect sunlight. That's when you experience colder weather, like you do in Fall and Winter. Take a look at the fashlight diagrams to see what I mean about direct and indirect sunlight.

13 When the Northern Hemisphere experiences Summer (direct sunlight), the Southern Hemisphere experiences Winter (indirect sunlight). So if we take another look at Earth's Orbit, we can see that the way the earth is tilted in its orbit determines the change of the seasons. For example, during our Summer season, Earth's North Pole is tilted toward the sun. That's when the Northern Hemisphere experiences direct sunlight, and Summer. Northern Hemisphere? What's that? Emily asked. Earth is split in half by the Equator, and imaginary line. This line divides the Earth into North and South, known as hemispheres, replied the sun. And the axis divides the earth into East and West! Jimmy exclaimed. That's right, Jimmy! You both live in the Northern Hemisphere and Western Hemisphere.

14 Okay, so that's how the seasons change, but how do you explain why the days are shortest in the winter and longest in the summer? Asked Jimmy. Oh yeah! I forgot about that! Emily cheered. I'm glad you asked, replied the sun. The tilted axis is also the reason why we have more hours of daylight in Spring and Summer and less during Fall and Winter.Since the sun is closest to Earth during the winter, when the North Pole is tilted away from the sun, the sun sits lower in the sky. That's why we have shorter days. In fact, the closer you live to the North Pole, the shorter your days are during Winter. During the summer, the sun is up higher in the sky. Because the sun is higher in the sky, you receive direct sunlight for a longer amount of time. This is why days are longer and hotter during Summer, answered the sun.

15 23.5 degrees is how much the Earth is tilted. Autumnal Equinox is another way of saying Fall. Vernal Equinox is another way of saying Spring. The word, 'Equinox' means that the earth's axis is tilting neither toward nor away from the sun. This is was causes the in-between weather during fall and spring. It's not too hot or too cold. Also, Equinox means equal in latin. The term is also used because around the this time, the hours of day and night are approximately equally as long. Wow, so it's kind of the opposite of what we thought, said Emily, that was kind of silly of us. As I said before, this goes for both you and Jimmy, the best way that we learn is by testing out our predictions. You both made a prediction based on your observations. Scientists do the very same thing when they study the world. It's how we learn!

16 Wow! We learned so today! I can't wait to go back to school and tell everyone how the seasons work! Our teacher will be so impressed! Emily was so excited that her question had been answered, and by the Sun too! What more could she have asked for? Yeah, well we better get in our playing time now! The days are getting shorter! Joked Jimmy. Jimmy and Emily, I am so glad that I helped you today! I'll just be up here watching over you until I set. Have fun! Jimmy and Emily played until sunset and went inside for dinner, when they explained what they had learned to their parents.

17 Standards: Grades 3-5 A Broad Concept: Objects in the sky move in regular and predictable patterns. As a basis for understanding this concept Students: Observe and describe the apparent motion of the sun and moon over a time span of one day. Using a globe, demonstrate how the Earth rotates on its axis every 24 hours, producing the night- and-day cycle. B. 4.1 Broad Concept:Scientifc progress is made by asking relevant questions and conducting careful investigations. Explain how scientifc thinking can be distorted by strong feelings, and explain why and when it is appropriate or necessary to separate emotions from the reasoning process. C. 5.5 Broad Concept: Students should relate to the earth as a planet in our solar system. Students should be able to : Describe the Earth as part of a system called the solar system, which includes the sun (a star), planets, comets, asteroids, and many moons Recognize that the Earth is the third planet from the sun in our solar system Demonstrate how the Earth orbits the sun in a year s time, and Earth rotates on its axis about once every 24 hours.

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

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

4. What verb is used to describe Earth s

4. What verb is used to describe Earth s Name: Date: 1 Read the text and then answer the questions. No matter where on Earth you live, you have day and night. That happens because of a movement of Earth called rotation. Earth rotates, or turns,

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

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

The Sun-Earth-Moon System

The Sun-Earth-Moon System chapter 311 section 1 Earth The Sun-Earth-Moon System Before You Read What do you already know about Earth s shape, its size, and how it moves? Write what you know on the lines below. What You ll Learn

More information

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

CHAPTER 2 Strand 1: Structure and Motion within the Solar System

CHAPTER 2 Strand 1: Structure and Motion within the Solar System CHAPTER 2 Strand 1: Structure and Motion within the Solar System Chapter Outline 2.1 EARTH, MOON, AND SUN SYSTEM (6.1.1) 2.2 GRAVITY AND INERTIA (6.1.2) 2.3 SCALE OF SOLAR SYSTEM (6.1.3) 2.4 REFERENCES

More information

Earth, Sun, and Stars

Earth, Sun, and Stars Earth, Sun, and Stars Daily Patterns Earth Spins Earth is always moving, even though you don t feel it. One way Earth moves is by spinning around an imaginary line. One end of the line would come out of

More information

1st Grade. Slide 1 / 90. Slide 2 / 90. Slide 3 / 90. The Sun, Moon, Earth and Stars. Table of Contents The Sun.

1st Grade. Slide 1 / 90. Slide 2 / 90. Slide 3 / 90. The Sun, Moon, Earth and Stars. Table of Contents The Sun. Slide 1 / 90 Slide 2 / 90 1st Grade The Sun, Moon, Earth and Stars 2015-11-20 www.njctl.org Table of Contents Slide 3 / 90 Click on the topic to go to that section The Sun The Moon The Stars The Seasons

More information

Name Homeroom. Science Quiz Day/Night, Sun s Energy, Seasons September 24, 2012

Name Homeroom. Science Quiz Day/Night, Sun s Energy, Seasons September 24, 2012 Name Homeroom Science Quiz Day/Night, Sun s Energy, Seasons September 24, 2012 1. The winter solstice occurs on either December 21 or 22, depending on the year. Which of the following statements best explains

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

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

Chapter 4 Earth, Moon, and Sky 107

Chapter 4 Earth, Moon, and Sky 107 Chapter 4 Earth, Moon, and Sky 107 planetariums around the world. Figure 4.4 Foucault s Pendulum. As Earth turns, the plane of oscillation of the Foucault pendulum shifts gradually so that over the course

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

Motions of the Earth

Motions of the Earth Motions of the Earth Our goals for learning: What are the main motions of the Earth in space? How do we see these motions on the ground? How does it affect our lives? How does the orientation of Earth's

More information

Earth rotates on a tilted axis and orbits the Sun.

Earth rotates on a tilted axis and orbits the Sun. Page of 7 KY CONCPT arth rotates on a tilted axis and orbits the Sun. BFOR, you learned Stars seem to rise, cross the sky, and set because arth turns The Sun is very large and far from arth arth orbits

More information

Earth in Space. The Sun-Earth-Moon System

Earth in Space. The Sun-Earth-Moon System in Space The --Moon System What do you think? Read the two statements below and decide whether you agree or disagree with them. Place an A in the Before column if you agree with the statement or a D if

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

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

Solar System Test - Grade 5

Solar System Test - Grade 5 Solar System Test - Grade 5 Multiple Choice Directions: Identify the choice that best completes the statement or answers the question. Write this answer on your answer document. 1. The tilt of Earth s

More information

Chapter Introduction Lesson 1 Earth s Motion Lesson 2 Earth s Moon Lesson 3 Eclipses and Tides Chapter Wrap-Up. Jason Reed/Photodisc/Getty Images

Chapter Introduction Lesson 1 Earth s Motion Lesson 2 Earth s Moon Lesson 3 Eclipses and Tides Chapter Wrap-Up. Jason Reed/Photodisc/Getty Images Chapter Introduction Lesson 1 Earth s Motion Lesson 2 Earth s Moon Lesson 3 Eclipses and Tides Chapter Wrap-Up Jason Reed/Photodisc/Getty Images What natural phenomena do the motions of Earth and the Moon

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 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

A. the spinning of Earth on its axis B. the path of the Sun around Earth

A. the spinning of Earth on its axis B. the path of the Sun around Earth stronomy 1 Packet Write answers on your own paper 1. The Sun appears to move across the sky each day. What causes this?. the spinning of Earth on its axis. the path of the Sun around Earth. the production

More information

Tilt-A-World. This repeats

Tilt-A-World. This repeats Tilt-A-World According to the National Science Education Standards, children should know how much the Earth tilts on its axis of rotation. We'd like to make this more of a logical discovery from their

More information

Academic Year Second Term. Science Revision Sheet. Grade

Academic Year Second Term. Science Revision Sheet. Grade Academic Year 2017-2018 Second Term Science Revision Sheet Grade 6 Name: Grade Date: Section: Part A. Science Practice. Circle the letter of your answer. 1. When the moon is waxing, its lighted part appears

More information

Fall equinox levels the sunlight playing field all around the world

Fall equinox levels the sunlight playing field all around the world Fall equinox levels the sunlight playing field all around the world By Washington Post, adapted by Newsela staff on 09.28.17 Word Count 719 Level 950L Sunset over the southern part of the Atlantic Ocean.

More information

Seasons Quiz Please Do Not Write on this Paper Obrigado

Seasons Quiz Please Do Not Write on this Paper Obrigado Seasons Quiz Please Do Not Write on this Paper Obrigado Use this diagram of the sun and Earth's path around the sun to answer the next two questions. The N indicates North and Earth is traveling from A

More information

Rotation and Revolution

Rotation and Revolution On Earth, each day begins at sunrise and ends at sunset. You see the Sun come up or rise in the morning and go down or set at night. When we use these phrases, what do you think they imply about the way

More information

This clementine orange is an oblate spheroid. Earth is more rounded than this clementine, but it is still an oblate spheroid.

This clementine orange is an oblate spheroid. Earth is more rounded than this clementine, but it is still an oblate spheroid. On Earth, each day begins at sunrise and ends at sunset. You see the Sun come up or rise in the morning and go down or set at night. When we use these phrases, what do you think they imply about the way

More information

4 th Grade: Sun, Moon, and Earth Unit Assessment Study Guide

4 th Grade: Sun, Moon, and Earth Unit Assessment Study Guide Name: Teacher: Test Date: 4 th Grade: Sun, Moon, and Earth Unit Assessment Study Guide Vocabulary: Solar System: A group of objects that revolve around a single star. Sun: The central (and only) star in

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

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

UNIT 3: EARTH S MOTIONS

UNIT 3: EARTH S MOTIONS UNIT 3: EARTH S MOTIONS After Unit 3 you should be able to: o Differentiate between rotation and revolution of the Earth o Apply the rates of rotation and revolution to basic problems o Recall the evidence

More information

8.7A Seasons and Day/Night. October 21st-28th

8.7A Seasons and Day/Night. October 21st-28th 8.7A Seasons and Day/Night October 21st-28th Day One- Friday October 21th,2016 TEK 8.7A Model and illustrate how the tilted Earth rotates on its axis, causing day and night, and revolves around the Sun

More information

SC.8.E.5.9. Summer and Winter Gizmo

SC.8.E.5.9. Summer and Winter Gizmo 8 th Grade Science Quarter 1 Recovery Packet SC.8.E.5.9 DAYS/YEARS/SEASONS Go to www.explorelearning.com and search for the Summer and Winter Gizmo. Answer the following questions: Gizmo Warm-up Summer

More information

Rotation - Earth spinning on its axis

Rotation - Earth spinning on its axis What is a Cycle? The Tilted Earth TEK 8.7A the student knows the effects resulting from cyclical movements of the Sun, Earth, and Moon. The student is expected to model and illustrate how the tilted Earth

More information

Fall equinox means 12 hours of sunlight for everyone, everywhere

Fall equinox means 12 hours of sunlight for everyone, everywhere Fall equinox means 12 hours of sunlight for everyone, everywhere By Washington Post, adapted by Newsela staff on 09.28.17 Word Count 738 Level 1130L Sunset over the southern part of the Atlantic Ocean.

More information

Scott Foresman Science 4.17

Scott Foresman Science 4.17 Genre Comprehension Skill Text Features Science Content Nonfiction Cause and Effect Captions Labels Diagrams Glossary Earth Cycles Scott Foresman Science 4.17 ISBN-13: 978-0-328-34240-2 ISBN-10: 0-328-34240-8

More information

(1) How does the annual average sun angle at solar noon (that is, the sun angle at noon averaged over a full year) depend on latitude?

(1) How does the annual average sun angle at solar noon (that is, the sun angle at noon averaged over a full year) depend on latitude? (1) How does the annual average sun angle at solar noon (that is, the sun angle at noon averaged over a full year) depend on latitude? (A) * As latitude increases, average sun angle at solar noon decreases.

More information

Earth & Space Science

Earth & Space Science Earth & Space Science Grade 6 Written by Tracy Bellaire The activities in this book have two intentions: to teach concepts related to earth and space science and to provide students the opportunity to

More information

12.1. The Night Sky. Earth s Motions

12.1. The Night Sky. Earth s Motions 12.1 The Night Sky LEARNING TIP Skim Section 12.1. Consider information gathered from the title, headings, figures, and words in bold. What do you expect to learn in this section? Astronomy is the branch

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

Student Exploration: Seasons in 3D

Student Exploration: Seasons in 3D Name: Date: Student Exploration: Seasons in 3D Vocabulary: axis, equinox, latitude, Northern Hemisphere, revolve, rotate, solar energy, solar intensity, Southern Hemisphere, summer solstice, winter solstice

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

You have learned that Earth s 24-hour day night cycle is caused

You have learned that Earth s 24-hour day night cycle is caused 76 A Year Viewed from Space C O M P U T E R S I M U L AT I O N You have learned that Earth s 24-hour day night cycle is caused by Earth s rotation around its axis. The year is another cycle caused by Earth

More information

Planet Earth. Part 2

Planet Earth. Part 2 Planet Earth Part 2 Sun, Earth and Moon Motions The Solar System revolves around the Milky Way galaxy center. The Sun rotates on its own axis. Earth revolves around the Sun (1 year) and rotates on its

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

DO NOW HW due Friday; Quiz Wed

DO NOW HW due Friday; Quiz Wed DO NOW HW due Friday; Quiz Wed 1. Draw out a solar eclipse. Write out what a solar eclipse is. 2. Draw out a lunar eclipse. Write out what a lunar eclipse is. 3. Which number moon would give us a solar

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

Astronomy#2 - Notebook

Astronomy#2 - Notebook Name Test Date Hour Astronomy#2 - Notebook Planet Earth LEARNING TARGETS I can describe a sphere and give evidence used to prove Earth is spherical. I can explain the difference between rotation and revolution.

More information

Patterns of Change on Earth

Patterns of Change on Earth TEKS collect and analyze data to identify sequences and predict patterns of change in shadows, tides, seasons, and the observable appearance of the Moon over time Patterns of Change on Earth Patterns and

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

ì<(sk$m)=cdfdhh< +^-Ä-U-Ä-U

ì<(sk$m)=cdfdhh< +^-Ä-U-Ä-U Standards Preview Earth Sciences Standard Set 4. Earth Sciences 4. Objects in the sky move in regular and predictable patterns. As a basis for understanding this concept: 4.a. Students know the patterns

More information

Go to Click on the first animation: The north pole, observed from space

Go to  Click on the first animation: The north pole, observed from space IDS 102 The Seasons on a Planet like Earth As the Earth travels around the Sun, it moves in a giant circle 300 million kilometers across. (Well, it is actually a giant ellipse but the shape is so close

More information

PHYSICS 107. Lecture 4 Ancient Astronomy

PHYSICS 107. Lecture 4 Ancient Astronomy PHYSICS 107 Lecture 4 Ancient Astronomy Introduction Astronomy is the oldest science. There are astronomical artifacts going back 8000 years. Many ancient cultures on every continent seem to have had examples

More information

Moon, Planet, Star, Solar System, Galaxy, Universe

Moon, Planet, Star, Solar System, Galaxy, Universe Dr. V s Study Guide : Astronomy Unit 1) Place the following in order of increasing size: The Galaxy, the Solar System, a Star, the Universe,a Moon and a Planet. Moon, Planet, Star, Solar System, Galaxy,

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

Daily Motions. Daily Motions. Solar and Sidereal Days. Annual Motions of the Sun. Coordinate system on Earth. Annual Motion of the Stars.

Daily Motions. Daily Motions. Solar and Sidereal Days. Annual Motions of the Sun. Coordinate system on Earth. Annual Motion of the Stars. Sun: rises in the east sets in the west travels on an arc across the sky 24 hours Daily Motions Solar Day = 24 hours Stars: stars travel on arcs in the sky moving from east to west. some stars rise and

More information

Student Exploration: Seasons: Earth, Moon, and Sun

Student Exploration: Seasons: Earth, Moon, and Sun Name: Date: Student Exploration: Seasons: Earth, Moon, and Sun Vocabulary: altitude, axis, azimuth, equinox, horizon, latitude, revolution, rotation, solstice Prior Knowledge Questions (Do these BEFORE

More information

Astronomy 101 Lab: Seasons

Astronomy 101 Lab: Seasons Name: Astronomy 101 Lab: Seasons Pre-Lab Assignment: In class, we've talked about the cause of the seasons. In this lab, you will use globes to study the relative positions of Earth and the Sun during

More information

7 th Grade Science DO NOW. OBJECTIVES: By the end of today s lesson, you will be able to

7 th Grade Science DO NOW. OBJECTIVES: By the end of today s lesson, you will be able to 7 th Grade Science Unit: Earth, Sun, and Moon Lesson: ESM 4_Rotation and Revolution Name: Date: Monday, October 24, 2016 Homeroom: DO NOW SWBAT define and identify lines of latitude and longitude. SWBAT

More information

1. Which continents are experiencing daytime? 2. Which continents are experiencing nighttime?

1. Which continents are experiencing daytime? 2. Which continents are experiencing nighttime? Name: Section: Astronomy 101: Seasons Lab Objective: When you have completed this lab, you will be able to describe the seasons of the year and explain the reasons for those seasons. Answer the questions

More information

As the World Turns. Vocabulary rotate, revolve, tilt, frame of reference, spin, axis. Science Enhanced Scope and Sequence Grade 3

As the World Turns. Vocabulary rotate, revolve, tilt, frame of reference, spin, axis. Science Enhanced Scope and Sequence Grade 3 As the World Turns Strand Earth Patterns, Cycles, and Change Topic Seasons, day and night Primary SOL 3.8 The student will investigate and understand basic patterns and cycles occurring in nature. Key

More information

Practice Questions: Seasons #1

Practice Questions: Seasons #1 1. Seasonal changes on Earth are primarily caused by the A) parallelism of the Sun's axis as the Sun revolves around Earth B) changes in distance between Earth and the Sun C) elliptical shape of Earth's

More information

core temperature: more than surface Definition of revolution How long it takes Earth to make one revolution around the Sun

core temperature: more than surface Definition of revolution How long it takes Earth to make one revolution around the Sun Lesson 1 Earth s Motion kim Lesson 1 in your book. Read the headings and look at the photos and illustrations. Write three things you want to learn more about as you read the lesson. Write your ideas in

More information

Grade 6 Standard 2 Unit Test Astronomy

Grade 6 Standard 2 Unit Test Astronomy Grade 6 Standard 2 Unit Test Astronomy Multiple Choice 1. Why does the air temperature rise in the summer? A. We are closer to the sun. B. The air becomes thicker and more dense. C. The sun s rays are

More information

2.2 The Reason for Seasons

2.2 The Reason for Seasons 2.2 The Reason for Seasons Our goals for learning: What causes the seasons? How does the orientation of Earth's axis change with time? Thought Question TRUE OR FALSE? Earth is closer to the Sun in summer

More information

The Sun-Earth-Moon System

The Sun-Earth-Moon System CHAPTER 20 The un-earth-moon ystem LEO 1 Earth s Motion What do you think? Read the two statements below and decide whether you agree or disagree with them. Place an A in the Before column if you agree

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

Seasons and Ecliptic Simulator

Seasons and Ecliptic Simulator Overview: In this lesson, students access an online simulator to aid in understanding the relationship between seasons and Earth s tilt and the day/night cycle caused by Earth s rotation. Objectives: The

More information

Astronomy 115 Section 4 Week 2. Adam Fries SF State

Astronomy 115 Section 4 Week 2. Adam Fries SF State Astronomy 115 Section 4 Week 2 Adam Fries SF State afries@sfsu.edu Important Notes: Homework #1 is Due at the beginning of class next time. Attendance Sheet is going around one last time! Homework Questions?

More information

EARTH S REVOLUTION -and- EARTH S ROTATION

EARTH S REVOLUTION -and- EARTH S ROTATION EARTH S REVOLUTION -and- EARTH S ROTATION Earth s Revolution Have you ever noticed that your classroom globe is tilted? This is no accident. Globes are made to be replicas, or models, of the Earth. Earth

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

Rotation and Revolution

Rotation and Revolution Lesson 2 Rotation and Revolution Earth has circled around the Sun for about 4.6 billion years. What has kept Earth in its path around the Sun for so long? 422 ENGAGE ESS.41 Explain why the Moon, Sun, and

More information

Your web browser (Safari 7) is out of date. For more security, comfort and the best experience on this site: Update your browser Ignore

Your web browser (Safari 7) is out of date. For more security, comfort and the best experience on this site: Update your browser Ignore Your web browser (Safari 7) is out of date. For more security, comfort and the best experience on this site: Update your browser Ignore Activitydevelop Family Version THE REASO N FO R THE SEASO NS How

More information

Astronomy 101: 9/18/2008

Astronomy 101: 9/18/2008 Astronomy 101: 9/18/2008 Announcements Pick up a golf ball at the front of the class or get one from Alex; you will need it for an in-class activity today. You will also need the question sheet from Alex.

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

Define umbra and penumbra. Then label the umbra and the penumbra on the diagram below. Umbra: Penumbra: Light source

Define umbra and penumbra. Then label the umbra and the penumbra on the diagram below. Umbra: Penumbra: Light source Lesson 3 Eclipses and Tides LA.8.2.2.3, SC.8.E.5.9, SC.8.N.1.1 Skim or scan the heading, boldfaced words, and pictures in the lesson. Identify or predict three facts you will learn from the lesson. Discuss

More information

CHAPTER 2 A USER'S GUIDE TO THE SKY

CHAPTER 2 A USER'S GUIDE TO THE SKY CHAPTER 2 A USER'S GUIDE TO THE SKY MULTIPLE CHOICE 1. In one way of naming stars, a letter indicates its brightness relative to the other stars in the constellation. a. English b. Arabic c. Greek d. Cyrillic

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

Lecture 2: Motions of the Earth and Moon. Astronomy 111 Wednesday August 30, 2017

Lecture 2: Motions of the Earth and Moon. Astronomy 111 Wednesday August 30, 2017 Lecture 2: Motions of the Earth and Moon Astronomy 111 Wednesday August 30, 2017 Reminders Online homework #1 due Monday at 3pm Labs start next week Motions of the Earth ASTR111 Lecture 2 Observation:

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

Astronomy. What is the force that pulls objects toward the center of the earth, between the earth and the moon and the earth and other planets?

Astronomy. What is the force that pulls objects toward the center of the earth, between the earth and the moon and the earth and other planets? Astronomy Essential Questions and Answers: What is the force that pulls objects toward the center of the earth, between the earth and the moon and the earth and other planets? Students: Gravity is the

More information

Day, Night & the Seasons. Lecture 2 1/21/2014

Day, Night & the Seasons. Lecture 2 1/21/2014 Day, Night & the Seasons Lecture 2 1/21/2014 Logistics The following students see me after class: A. Gonzalez, Chen Anyone who was not here on first day see me after class Pin Numbers - if you have not

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

Your web browser (Safari 7) is out of date. For more security, comfort and the best experience on this site: Update your browser Ignore

Your web browser (Safari 7) is out of date. For more security, comfort and the best experience on this site: Update your browser Ignore Your web browser (Safari 7) is out of date. For more security, comfort and the best experience on this site: Update your browser Ignore Activitydevelop Educator Version THE REASO N FO R THE SEASO NS How

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

Lab 2 The Origin of the Seasons

Lab 2 The Origin of the Seasons Lab 2 The Origin of the Seasons 2.2 The Seasons Names: 1. Do you think this change in distance is big enough to cause the seasons? Explain your logic. (3pts) 2. Take the ratio of the aphelion distance

More information

Summer solstice June 21, 2014

Summer solstice June 21, 2014 function get_style19370 () { return "none"; } function end19370_ () { document.getelementbyid('elastomer19370').style.display = get_style19370(); } Differences in amount of daylight on solstices for Liberal

More information

[04] Seasons, Phases, and Eclipses (9/7/17)

[04] Seasons, Phases, and Eclipses (9/7/17) 1 [04] Seasons, Phases, and Eclipses (9/7/17) Upcoming Items Homework #2 due next lecture. Read Ch. 3.3 and do the self-study quizzes for next lecture, and skim 2.4, 3.1, 3.2, & 3.4. https://pbs.twimg.com/media/dh69il_u0aenivq.jpg:large

More information

1. Which term describes any object that exists in space? a. celestial object b. star c. planet d. asteroid

1. Which term describes any object that exists in space? a. celestial object b. star c. planet d. asteroid Space Test Review Multiple Choice Identify the choice that best completes the statement or answers the question. 1. Which term describes any object that exists in space? a. celestial object b. star c.

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

Full Moon. Phases of the Moon

Full Moon. Phases of the Moon Phases of the Moon The Moon takes 29.5 days to orbit Earth. This is a lunar month. The gravity of the Earth keeps the Moon in orbit. The Moon does not produce light. We see the Moon because it reflects

More information

Unit 7: Partner Resource. Sun and Moon

Unit 7: Partner Resource. Sun and Moon Earth and Space Systems: Relative Positions of Sun, Earth and Moon, Patterns and Seasons Washington University in St. Louis Institute for School Partnership Unit 7: Partner Resource Sun and Moon Additional

More information

The. Astronomy is full of cycles. Like the day, the month, & the year In this section we will try to understand these cycles.

The. Astronomy is full of cycles. Like the day, the month, & the year In this section we will try to understand these cycles. Understanding The Sky Astronomy is full of cycles Like the day, the month, & the year In this section we will try to understand these cycles. For Example Why do we think of stars as nighttime objects?

More information

Earth in Space Chapter 1

Earth in Space Chapter 1 Earth in Space Chapter 1 Section 1 Earth in Space How does Earth move in space? What causes the cycle of seasons on Earth? How the Earth Moves The study of the moon, stars, and other objects in space is

More information

Seasons SC.8.E.5.9 Explain the impact of objects in space on each other, including:

Seasons SC.8.E.5.9 Explain the impact of objects in space on each other, including: Seasons SC.8.E.5.9 Explain the impact of objects in space on each other, including: 1. The Sun on the Earth, including seasons and gravita>onal a?rac>on 2. The Moon on the Earth, including phases, >des,

More information

Name Period Chapter 12 &13 Study Guide

Name Period Chapter 12 &13 Study Guide Name Period Chapter 12 &13 Study Guide Multiple Choice Identify the choice that best completes the statement or answers the question. 1. When are tides highest? a. during the moon s first quarter phase

More information