2. Today’s Agenda Discuss moon logs Notes on Rotation and Revolution

3. Study Pack #1 Page 440

4. Today’s Goals… I can explain the difference between Earth’s rotation and revolution. I can explain what Earth’s rotation and revolution causes.

5. Rotation Axis – the imaginary line that passes through Earth’s center and the North and South poles Earth’s spinning on this axis is called its rotation A point on the equator rotates at about 1,600 km/h – faster than jets!!!

6. Rotation Earth’s rotation on its axis causes day and night The Earth rotates eastward so the sun appears to rise in the east and set in the west The Earth takes 24 hours to rotate once on its axis

7. Rotation When the Earth faces the sun it is daylight When the Earth faces away from the sun it is night

8. Rotation

9. Revolution The movement of the Earth around the sun is called revolution One complete revolution around the sun is called a year Earth’s path as it revolves around the sun is called its orbit –The Earth’s orbit is in an oval shape

10. Revolution

11. Calendars Why do we have leap year? –Earth’s orbit around the sun takes slightly more than 365 days – actually about 365 ¼ days! –So every fourth year we have an extra day – leap year!

12. Exit Slip! Put away your books and notes and show me what you learned ! Create a T-chart to compare rotation and revolution!