| 1 |
Which planet is sixth closest to the Sun? Venus, Saturn, Earth, Mars |
| 2 |
Which planet is the hottest in the Solar System? Mars, Venus, Mercury, Jupiter |
| 3 |
Which planet is the second largest planet in the Solar System? Uranus, Jupiter, Neptune, Saturn |
| 4 |
Which planet is the smallest in the solar system? Mercury, Mars, Venus, Earth |
| 5 |
Which planet is the smallest of the "Gas giants"? Jupiter, Saturn, Neptune, Uranus |
| 6 |
Which planet is third closest to the Sun? Mars, Earth, Jupiter, Saturn |
| 7 |
Which planet lies closest to the Kuiper belt? Mars, Neptune, Venus, Earth |
| 8 |
Which planet possess a ring entitled Egalite 1? Saturn, Neptune, Jupiter, Uranus |
| 9 |
Which planet takes 164 earth years to orbit the Sun? Neptune, Jupiter, Uranus, Saturn |
| 10 |
Which planet takes 29 Earth years to orbit the Sun? Neptune, Jupiter, Uranus, Saturn |
| 11 |
Which planet takes 365 days to orbit the sun? Mercury, Earth, Mars, Venus |
| 12 |
Which planet takes 84 earth years to orbit the Sun? Uranus, Neptune, Jupiter, Saturn |
| 13 |
Which planet takes around 668 days to orbit the Sun? Mars, Mercury, Earth, Venus |
| 14 |
Which planet was originally intended to be named Sidus? Saturn, Neptune, Jupiter, Uranus |
| 15 |
Which planet was the first founded by mathematical prediction? Uranus, Neptune, Jupiter, Saturn |
| 16 |
Which planet was visited by MESSENGER in 2004? Mercury, Mars, Earth, Venus |
| 17 |
Which planet is orbited by the moon of Proteus? Saturn, Neptune, Uranus, Jupiter |
| 18 |
Which was the first planet to be discovered with the use of a telescope? Neptune, Jupiter, Uranus, Saturn |
| 19 |
William Herschel discovered which planet? Neptune, Jupiter, Saturn, Uranus |
| 20 |
Xena was the informal name originally used for which body? Ceres, Pluto, Make make, Eris |
