1. Warm Up What do you already know about OUR solar system? Write 10 facts YOU know. Did you know? By about 3500 BC (and maybe long before that), people thought of these moving things in the sky as living beings -gods, with their own human-like personalities. If the moonand the planets were gods, they could affect the lives of people, and so the Mesopotamians and the Egyptians began to chart the movements of the planets and the moon to try to predict the future.3500 BCgodsmoonplanetsMesopotamiansEgyptians

2. Geocentric model (1) -Earth centered universe -Earth is the center of the solar system -Stars rotate around the Earth. https://www.youtube.com/watch?v=GevV1yvMJbc

3. Aristotle (2) -Grandfather of science -Used observation based science. -Did experiments to study scientifically. -So respected that his wrong ideas were taught.

4. Ptolemy (3) -Astronomer and mathematician -Published ideas in books. -He “made” the math work for the geocentric model.

5. Heliocentric model (4) -Sun centered universe. -Planets are in orbits around the Sun. -Stars are distant and do not move.

6. Copernicus (5) -Brought heliocentrism to the Renaissance -Used scientific observation. -Discovered Earth rotates on its own axis -His followers were called Copernicans

7. Galileo (6) -Built a telescope to prove Copernican model correct. -Forced to admit wrong-doing by the Church -Although locked away for life, his ideas were shared in books http://video.about.com/inventors/Profile-of-Galileo-Galilei.htm

8. A tour of our SOLAR SYSTEM https://www.youtube.com/watch?v=evWeRHMwSu0

9. Can you list the planets in order?

10. Our Solar System *not to scale or distance !

11. Space Distances: To measure distances in space, we use the astronomical unit (AU). 1 AU = 150 million kilometers 1 AU = the average distance between the Earth and the Sun. 1 AU

12. Space Basics and Vocabulary to KNOW!