1. Barycenter Eric Angat Teacher

2. Center of the Solar System https://www.youtube.com/watch?v=GPBB5thPgQEhttps://www.youtube.com/watch?v=GPBB5thPgQE Copernicus https://www.youtube.com/watch?v=KsF_hdjWJjohttps://www.youtube.com/watch?v=KsF_hdjWJjo Solar System https://www.youtube.com/watch?v=wNDGgL73ihYhttps://www.youtube.com/watch?v=wNDGgL73ihY Big Bang Theory

3. Barycenter http://en.wikipedia.org/wiki/Center_of_mass The barycenter is the point between two objects where they balance each other. It is the center of mass where two or more celestial bodies orbit each other. The barycenter is always near the more massive object.

4. 1. Where is the Earth-Moon BARYCENTER? https://www.youtube.com/watch?v=uGBANgbRkws

5. 2. Where is the BARYCENTER of the solar system? https://www.youtube.com/watch?v=SQRAsDmQlz0

6. 3. The Sun and all the planets in the solar system orbit around their _____________. a.northern star b.barycenter c.precession d.gravity barycenter

7. 4. The barycenter of the Earth and moon is approximately found ___________ below surface of Earth. a.1,710 mi. b.1,710 km. 1,710 km.

8. 5. Does the Sun stay stationary in its place as Earth revolves? Explain. http://en.wikipedia.org/wiki/Earth-Moon_barycenter The Sun also orbits around the barycenter. Earth orbits around the barycenter. Barycenter

9. 6. Describe the location of the Barycenter between two bodies of similar mass. http://en.wikipedia.org/wiki/Earth-Moon_barycenter Barycenter is the center.

10. 7. The Barycenter of the Earth and moon is located____________. a.northern star b.near earth c.near the moon d.Inside the Earth inside Earth

11. 8. The barycenter is nearer the more ________ object. a.faster b.massive c.Smaller d.gravity massive

12. Vocabulary Words: 1.Rotation- earth spins on its axis - completes in 24 hours ( day and night) 2. Revolution –Earth spins around the Sun. - completes in 365 days (year). 3. Precession – Earth’s axis spins/rotates. - completes in 26,000 years. - changes our northern star. 4. Nutation- irregularity ( zig-zag) in Earth’s precession by ½ or 0.5 degree. - influences seasons. 5. Earth’s 23.5 degrees tilt on its axis is responsible for the seasons, not the distance from the Sun.

13. http://www.classzone.com/books/earth_science/terc/content/visualizations/es0408/es0408page01.cfm Earth’s Revolution Around the Sun. Explore a model of Earth's yearly revolution around the sun

14. Movies http://www.youtube.com/watch?v=1iSR3Yw6 FXo http://www.youtube.com/watch?v=1iSR3Yw6 FXo Solar System Barycenter http://www.youtube.com/watch?v=uGBANgb Rkws http://www.youtube.com/watch?v=uGBANgb Rkws Earth-Moon Barycneter