1. Warm up Pick your spot and partner, write your name and number on the card at your table in the 4 th period spot. Mrs. Chapel will be watching, if you are loud or distracted in your new spot, she will move you! Go to my links on my website Click on vocab unit 2 warm up 1 Use passcode 135 When you finish complete and hand in your homework from Friday.

2. Warm up Your warm up is on your desk You have 10 minutes When you finish, complete and hand in your homework from Friday

3. Nebular Theory Stars form from clouds of gas which rotate and form stars and planets.

4. Formation of Our solar system/Earth https://www.youtube.com/watch?v=Tz8ithgTBj4 https://www.youtube

5. In your notes Define and illustrate the differences between the orbit, revolution and rotation of Earth.

6. Questions: (1) Which natural phenomenon occurs as a result of Earth rotating on its axis? A movement of tectonic plates B deep ocean currents C seasonal changes D day and night (2) Which natural phenomenon occurs as a result of Earth revolving around the sun? A 365 days or a year B 24 hours or a day C seasonal changes D deep ocean currents

7. Kepler's Laws What are Kepler's three laws?

8. Kepler's first law: the law of ellipses explains that planets are orbiting the sun in a path described as an ellipse An ellipse is a special curve in which the sum of the distances from every point on the curve to two other points is a constant. The two other points are known as the foci of the ellipse. The closer together that these points are, the more closely that the ellipse resembles the shape of a circle. Kepler's first law is rather simple - all planets orbit the sun in a path that resembles an ellipse, with the sun being located at one of the foci of that ellipse.

9. Kepler's first law

10. Kepler's second Law-Law of equal areas A planet moves fastest when it is closest to the sun and slowest when it is furthest from the sun. The line joining the planet to the Sun sweeps out equal areas in equal times as the planet travels around the ellipse.

11. Kepler's third law-the law of harmonies The ratio of the squares of the revolutionary periods for two planets is equal to the ratio of the cubes of their semimajor axes: P(years) 2 = R(AU) 3 P(years)= R (AU) 3/2 R(AU)= P(years) 2/3

12. Kepler's laws foldable instructions Make a three door foldable. On the front of the flaps write: kepler's first law, kepler's second law, kepler's third law On the inside: on one side draw an image or write a formula to illustrate the law, on the other side write the definition. Make it colorful! When you are done, staple the foldable into your notebook. Have Mrs. Chapel check your work for a grade.

13. Kepler's laws lab This is a partner lab Obtain materials as Mrs. Chapel instructs Each person will complete the lab in their notebook. You do not need to write out the question, just the question # and answer. There are three parts to the lab, you will do one part at a time.

14. Lab expectations No horseplay Careful with pushpins Follow directions Noise level BELOW the music Obtain materials as directed Clean up your lab areas when finished

15. Closure