Across
- 3. the center of the solar system
- 4. a group of planets that orbit a sun
- 7. a giant rock orbiting a planet
- 10. a gas ball filled with hydrogen
- 12. a meteor that has hit a body of rock or gas
- 13. a part of a sun when there is a concentration of
- 14. year traveling at the speed of light for a year
Down
- 1. a body of rock and gas that orbit a sun
- 2. a group of planets that is made up of many solar systems
- 5. an electric piece of metal that orbits around the earth
- 6. a bit of rock that travels at great speeds
- 7. field flux that inhibit convection
- 8. a small rocky body orbiting the sun sometimes in big groups
- 9. a a ring that it moves around
- 11. known as a dirty snowball a frozen meteor