| Question | Answer | % Correct |
|---|---|---|
| How old is the Solar System? | 4.5 billion years | 100%
|
| How many planets are there? | 8 | 100%
|
| Which of the following dwarf planets used to be a planet? | Pluto | 100%
|
| How many Earths could fit in Jupiter itself; how many in the Sun? | 1,300; 1,300,000 | 88%
|
| Which of these was an asteroid and a planet in the past? | Ceres | 88%
|
| Which of the following moons is about half the diameter of its planet/dwarf planet | Charon | 88%
|
| What moon is larger than Mercury? | Ganymede | 88%
|
| What did Neptune have that eventually vanished? | The Great Dark Spot | 88%
|
| Which planet’s moons are all named after characters in Shakespeare’s plays? | Uranus | 88%
|
| What is the average temperature of Venus, in Fahrenheit | 900° | 75%
|
| How many of the planets can fit in Jupiter? | All of the other planets | 75%
|
| Which planet or dwarf planet is in the Asteroid Belt | Ceres | 75%
|
| Which of these is the only Solar System object named after a Hawaiian deity? | Haumea | 75%
|
| Which dwarf planet has more moons than the inner planets? | Pluto | 75%
|
| True or False: Uranus and Neptune used to be in opposite positions. | True | 75%
|
| Which of these objects were discovered first (with an extremely elongated orbit)? | Sedna | 63%
|
| Which of the following is a slightly smaller object, like the above, that is not quite a planet or dwarf planet? | Vesta | 63%
|
| How many Earths can fit into Jupiter’s Great Red Spot | 1.3 | 50%
|
| Which of the following celestial objects has an orbital period of more than 40,000 years? | 541132 Leleakuhonua (The Goblin) | 50%
|
| Compared to Uranus’s orbital distance, how far is Neptune from the Sun? | About half the distance farther | 13%
|