The Solar System

4. objects that revolve around the sun that are too small and too numerous to be considered planets
6. a system of millions or billions of stars held together by gravitational pull
7. any object that revolves around another object in space
9. a meteor that has hit Earth's surface
10. a ball of ice and dust whose orbit is an ellipse

1. a streak of light in the sky produced by the burning of a meteoroid in the Earth's atmosphere
2. the attractive force between 2 objects; its magnitude depends on their masses
3. the study of the moon, stars, and other objects in space
4. a scientist who studies the universe beyond Earth
5. a description of the solar system in which all the planets revolve around the sun
6. a description of the solar system in which all the planets revolve around Earth
8. the path of an object as it revolves around another object in space
11. a chunk of rock or dust in space