Across
- 2. a mixture of gases that surrounds the earth
- 7. the sun is a ____
- 10. what a planet is made of
- 12. earth's natural satellite
- 14. a group of planets and other bodies that revolve around a star
- 15. a object that spins around a larger object
- 16. has craters
- 17. 8 ______ in our solar system
- 19. round shape
Down
- 1. any natural feature of the Earth's surface, such as a hill, a lake, or a beach
- 3. similar to orbit
- 4. _____ has life
- 5. a huge collection of gas, dust, and billions of stars and their solar systems, all held together by gravity
- 6. a star
- 8. the action or process of rotating on or as if on an axis or center
- 9. the sun is 10,000 F it is so ___
- 11. a repeating path that one object in space takes around another one
- 12. a piece of rock or metal that is burning very bright when it enters the Earth's atmosphere from space
- 13. the sun is made of ___
- 18. the sun is a _____ source
