Across
- 1. what everything is made of
- 5. from earth to the solar system to the milky way to the _________
- 7. ______ jets of gas
- 8. similar to density
- 9. makes up molecules
Down
- 2. A huge cosmic explosion
- 3. gases, liquids, and solids have different amounts of these
- 4. hottest planet in the solar system
- 6. endless