| The Solar System | | Across | | | 4. | | Although not the closest to the sun, this planet is the hottest because of a thick atmosphere of carbon dioxide. | | | 5. | | This object is no longer considered to be a planet. | | | 6. | | Its two satellites are named Phobos and Deimos (Fear and Panic). | | | 8. | | You were born on this planet, hopefully. | | | 9. | | The closest planet to the sun, it orbits the sun once every 88 days. | | | 11. | | This planet is more massive than all of the others combined. | | | 12. | | This planet's axis is so tilted that it orbits the sun on its side. | |
| | Down | | | 1. | | Made mainly from ices and dust, these objects can form tails millions of kilometers long when they pass near the sun. | | | 2. | | Named for the Roman god of the sea. | | | 3. | | This object is at the center of the Solar System. | | | 7. | | Chunks of rock, most of which are found between the orbits of Mars and Jupiter. | | | 10. | | This planet possesses the Solar System's most impressive system of rings. | |
|
| | |