| 1 |
How many planets are there in the Solar System? 7, 8, 9, 6 |
| 2 |
How many sets of rings does Uranus have? 4, 2, 0, 1 |
| 3 |
How many spacecraft, as of 2014, have visited Mercury? 3, 2, 1, 4 |
| 4 |
How many times bigger is Saturn than the Earth? 4, 95, 31, 44 |
| 5 |
Hydrogen, Helium and a small amount of Methane provide the composition of which planet? Neptune, Saturn, Uranus, Jupiter |
| 6 |
Hydra is a moon that orbits which body? Ceres, Saturn, Pluto, Jupiter |
| 7 |
Hyperion is a moon of which planet? Uranus, Neptune, Saturn, Jupiter |
| 8 |
Iapetus is a moon of which planet? Jupiter, Neptune, Uranus, Saturn |
| 9 |
In 1631 Pierre Gassendi made the first telescopic observation of which planet? Mercury, Mars, Saturn, Venus |
| 10 |
In 1693 Giovanni Zupi observed that which planet actually orbited the sun? Saturn, Venus, Mercury, Mars |
| 11 |
In degrees Celsius what is the average surface temperature of Neptune? -10, -201, -301, -401 |
| 12 |
In earth days what is the orbital period of Mercury? 88, 6, 116, 34 |
| 13 |
In Kilometres, what is the length of the equator or Mercury? 48879, 4879, 47, 479 |
| 14 |
In relation to the Earth what is the 3753 Cruithne? Asteroid, Planet, Moon, Comet |
| 15 |
In terms of AU, how far is the Earth from the Sun? 3, 4, 2, 1 |
| 16 |
In terms of composition, what is the second most prominent element on Mercury? Hydrogen, Nitrogen, Sodium, Carbon |
| 17 |
In terms of distance from the Sun, where does Saturn rank? 4th, 5th, 7th, 6th |
| 18 |
In terms of ranking, where does Mercury come in a list of the hottest planets? 4th, 1st, 2nd, 3rd |
| 19 |
In terms of size, where does the Earth rank in a list of the largest planets? 7th, 2nd, 5th, 8th |
| 20 |
In the 1880s Giovanni Schiaparelli observed which planet and revealed it orbited the sun in just 88 days? Venus, Saturn, Mars, Mercury |
