| Hint | Answer | % Correct |
|---|---|---|
| Planet which is closest to the Sun | Mercury | 99%
|
| Pluto is this type of planet | {Dwarf} planet | 86%
|
| Galaxy in which our Solar System is located | Milky Way | 86%
|
| "Belt" which appears between the orbits of Mars and Jupiter | The asteroid belt | 69%
|
| Comet that appears in the inner solar system every 75–76 years | {Halley}'s Comet | 67%
|
| Gas that composes 96% of Venus's thick atmosphere, creating a runaway greenhouse effect | Carbon dioxide | 65%
|
| Name one of the four largest moons of Jupiter | Ganymede | Callisto | Europa | Io | 64%
|
| Term for a model of the Solar System which places the sun at the center | {Helio}centric | 58%
|
| Gas that composes 89% of the volume of Jupiter | Hydrogen | 57%
|
| Crystallized carbon substance that scientists think might rain from the sky on Jupiter, Saturn, Uranus, and Neptune | Diamonds | 53%
|
| To the nearest whole number, the mass of the sun as a percent of the mass of the entire solar system | 100% | 48%
|
| Term which refers to the distance between the Earth and the Sun | {Astronomical} Unit | 45%
|
| Martian volcano that is nearly three times higher than Mount Everest | {Olympus} Mons | 45%
|
| "Belt" which appears beyond the orbit of Neptune and is home to the above | {Kuiper} Belt | 43%
|
| Giant storm that has been visible on the surface of Jupiter since at least 1878 | Great Red Spot | 41%
|
| What became, in 2012, the first human-built probe to exit the solar system | Voyager 1 | 41%
|
| Nearest star to the sun | Proxima Centauri | 40%
|
| The largest object in that belt, named for the Roman goddess of agriculture | Ceres | 37%
|
| Shape that mysteriously appears on the north pole of Saturn | Hexagon | 24%
|
| Comet that slammed into Jupiter in 1994 with the force of 6 trillion tons of TNT | {Shoemaker}–Levy | 11%
|