The Solar System

2. A streak of light in the sky produced by the burning of a meteoroid in Earth's atmosphere.
3. The path of an object as it revolves around another object in space.
7. A meteoroid that has hit Earth's surface
8. A system of millions or billions of stars held together by gravitational attraction.
10. A chunk of rock or dust in space.
11. The region of the solar system between the orbits of Mars and Jupiter, where many asteroids are found.
13. The name given to the first four outer planets: Jupiter, Saturn, Uranus, and Neptune.
16. The name given to the four inner planets:Mercury, Venus, Earth, Mars

1. A description of the solar system in which all of the planets revolve around the sun.
4. A ball of ice and dust whose orbit is usually a long, narrow ellipse.
5. A description of the solar system in which all of the planets revolve around the Earth.
6. The attractive force between two objects; its magnitude depends on their masses and the distance between them.
9. The study of the moon, stars, and other objects in space.
12. Any object that revolves around another object in space.
14. Objects that revolve around the sun that are too small and too numerous to be considered planets.
15. A scientist who studies the universe beyond Earth.