Fill in the blanks.
1. _______ has a rotational axis that is tilted so much it lies nearly in the plane of its orbit.
2. ________ is the planet with the highest average surface temperature.
3. The planet that orbits closest to the Sun is ________.
4. The only rocky planet to have more than one moon is __________.
5. __________ is the jovian planet that orbits closest to the Sun.
6. _________ is about 30 times as far from the Sun as our own planet.
7. The planet with the lowest average density is __________.