1.  On a Catalyst Sheet, answer the following questions: 1. What is the study of objects in space called? 2. What is the difference between rotation and revolution?

2.  Catalyst  Announcements/Objective  Mini-Lesson: Earth in Space  Independent Reading  Group Work  Closing/Exit Ticket  Midterm Extra Credit Questions!  Homework Completion Time

3.  End of the Quarter!  All extra credit must be turned in by 3:30pm TODAY  Grades will be up-to-date by 5:00pm tonight ▪ Possibly even earlier!

4.  Quarter Four  Our last few weeks as a class   Moon, Solar System (brief), and beyond!  Make sure you keep up-to-date with assignments and finish the year strong!

5.  By the end of class, CWBAT analyze how Earth’s movements affect our concepts about time and will analyze features of the Moon’s surface.  CCSS.ELA-Literacy.RST.11-12.2 ▪ Determine the central ideas or conclusions of a text; summarize complex concepts, processes, or information presented in a text by paraphrasing them in simpler but still accurate terms.

7.  Astronomy is the study of objects in space.

8.  In order to understand how other celestial objects move, we will start by analyzing Earth’s movement.

9.  Earth moves in 2 ways  Rotation  Revolution

10.  Rotation is the spinning of Earth on its axis  Axis: The imaginary line that passes through Earth’s center and the North and South poles Axis

11.  Rotation causes day and night  Earth moves eastward, making the Sun appear to move westward across the sky

12.  It takes Earth roughly 24 hours to rotate all the way around.  That’s why days are 24 hours long  But… ▪ Days used to be longer!!!

13.  The Earth’s rotation is being slowed by the tidal effects (gravitational pull) of the Moon.  Modern days are about 1.7 milliseconds longer than they were in the year 1900.

14.  Revolution is the movement of one object around another.  What does Earth revolve around?  The Sun!

15.  One complete revolution around the sun is called a solar year.  Also known as a tropical year or astronomical year.  How long is a solar year on Earth?  365 days, 5 hours, 48 minutes, 45.51 seconds

16.  An orbit is the path Earth follows as is revolves around the Sun.  It is NOT a perfect circle.  It is an ellipse

17.  A calendar is a system of organizing time that defines the beginning, length, and divisions of a year.  How do we define the beginning, length, and divisions of a year?

18.  Based on a solar year  365 days  Adds a leap day every 4 years  February 29 th  Divided into 12 months  Extra Credit!  Determine why the months have irregular numbers of days.  Summarize in 1 paragraph.

19. 1. In the Astronomy Module, read pages 8-11. 2. Take notes as you read  Focus on highlighted/bolded words and make sure you understand the figures on page 9. 3. Answer #1 (a-b) and #2 (a-c) on page 11.

20.  With your Table Partner, complete the following: 1. Read pages 14-17 ▪ Be sure to take notes! 2. Create a diagram comparing the Moon to Earth ▪ Include: ▪ Size/Density ▪ Temperature ▪ Atmosphere ▪ Water ▪ Surface features of BOTH objects ▪ Be as detailed as possible!

21.  By the end of class, CWBAT analyze how Earth’s movements affect our concepts about time and will analyze features of the Moon’s surface.  Thumbs-Up/Thumbs-Down?

22.  On your Catalyst Sheet, answer the following: 1. What is the difference between rotation and revolution? 2. What are the three most prominent features of the Moon’s surface?  When you finish, put your Catalyst Sheet in the grey bin and quietly have a seat.

23.  Take out a sheet of loose-leaf paper and any notes you took on the video we watched last class.  Don’t share answers! If you’re caught cheating (or yelling out answers), you will not receive any points.

24.  What substance does the Giant Impact Theory account for being present on Earth, but not the Moon?

25.  Where can water exist on the Moon?

26.  The crater Mare Orientale shows what characteristic feature?

27.  Which element’s isotopes can be found in Moon rocks and on Earth?

28.  What makes up the Moon’s core?  Pass your sheets to the front!

29.  What substance does the Giant Impact Theory account for being present on Earth, but not the Moon?  Water

30.  Where can water exist on the Moon?  Where the Sun’s rays can’t reach

31.  The crater Mare Orientale shows what characteristic feature?  Concentric circles around it

32.  Which element’s isotopes can be found in Moon rocks and on Earth?  Oxygen isotopes

33.  What makes up the Moon’s core?  Iron