Across
- 2. 4 closest planets to the Sun
- 4. only planet with life on it
- 6. largest volcano in the solar system
- 8. 4 farthest away planets to the Sun
- 9. hottest planet
Down
- 1. gasses that surround a planet
- 3. a planet similar to earth in some ways
- 5. a path in which something moves around something
- 6. a celestial object that orbits a planet
- 7. closest to the Sun