Across
- 4. the brightest star in the sky
- 6. this covers 70% of the Earth's surface
- 8. one of the larges features on mercury
- 11. this is the largest volcanic mountain in the solar system
- 13. our home planet
- 14. this planet is blue-green due to Methane gas
- 15. one of mars' moons
- 16. one of jupiter's mons
Down
- 1. the other of mars' moons
- 2. the second smallest planet in the solar system
- 3. the eighth planet from the sun
- 5. the planet has the largest volcanic mountain in the solar system
- 7. neptune is this color
- 8. venus' atmosphere consists mainly of this gas
- 9. saturn has 52 of these
- 10. the giant red spot is on this planet
- 12. this planet has the most extensive ring system in the solar system