Across
- 2. the nature of something's ingredients.
- 4. a planet made of gas.
- 6. pulling down.
- 7. a planet with a icy surface.
- 9. a gas surrounding earth or another planet.
Down
- 1. the thing that borders Jupiter and Mars.
- 3. another word for the ground.
- 5. all the planets are apart of it.
- 8. what the Milky Way is.