Across
- 2. - closest planet to the sun, one of the inner four, terrestrial
- 5. - one of the two ice giants, the bigger of the two
- 7. - the smaller of the two ice giants
- 9. - the smaller of the two gas giants, has seven rings
Down
- 1. - comes before earth in the solar system, one of the inner four, terrestrial
- 3. - one of the two gas giants, the largest in the solar system
- 4. - the only planet we have successfully landed rovers on, the last of the inner four, terrestrial
- 6. - was demoted to a dwarf planet in 2006, is the size of Russia
- 8. - the planet we inhabit, one of the inner four, terrestrial