2. 1._____type of eclipse that occurs when the moon cast a shadow on the Earth (eclipse) 2.____the force that keeps planets from being pulled into the sun (rot/rev) 3.____the spinning motion of Earth to rotate on its axis (rot/rev) 4.____sun centered theory of the solar system (astronomers) 5.____type of breeze that occurs when the cold air over the ocean rushes in to replace the warm air over the land Do Now

3. 1.DO NOW SHEET PG 70 #1-4 2.CRCT BOOKLET L. 15 earths interior 3. Draw the picture on pg 76 Describe the crust, mantle, inner core, and outer core

4. Key Questions 1.What is a comet? 2. What are other names for comets? 3. What are the parts of a comet? 4. What causes a comet’s tail to form? 5. What direction does the tail always point? 6. What is the origin of comets? 7. Where are comets located?

5. 1. What is a comet? 1.A comet is a small body of ice, rock, and cosmic dust.

6. 2. What are other names for comets? dirty snowballs or ghost travelers

7. 3. What are the parts of a comet? -Nucleus -solid center of a comet -Coma-gases that spread from the nucleus -Head-nucleus and the coma -Tail-melted water, bits of rock, and dust behind the coma.

8. 4. What causes a comets tail to form? 4. A comets’ tail forms when the comet passes Jupiter and gets closer to the sun Comets have elongated elliptical orbits. ---- *Some orbits take comets plunging into the sun. *Other comets make one trip and never return. *Some comets make many trips after a few or many years.

9. 5. What direction does a comets tail always point? 5. The tail always points away from the sun because they are blown by solar winds.

10. 6. What is the origin of comets? 6. The origin of comets are leftover from the formation of planets.

11. 7. Where are comet located? 7. Comets are located in the Oort Cloud and the Kuiper Belt.