Chapter 3 Vocabulary Review

2. Curved path that an object follows as it revolves around another object
4. September 21
7. Piece of rock that hits the surface of a planet or moon after traveling through space.
8. Amount of matter that an object contains
9. Movement of one object in its orbit around another object in space.
12. March 21
14. Phase of the moon when he moon is between the sun and the earth
15. Passing of the moon through the earths shadow

1. Force of attraction between any two objects.
3. Low, flat plains on the moon's surface that appear as dark areas.
4. Phase of the moon when the earth is between the sun and the moon
5. Instrument that collects light, making faint objects easier to see and enlarging distant objects
6. December 21
10. An oval shape
11. Regular rising and falling of the earth's major bodies of water
12. Passing of the moon between the earth and the sun
13. Circular low area surrounded by a rim, usually caused by an object hitting the ground
16. June 21