| 11 Earths would circle this planet | Jupiter's size |
| ammonia gases, not solid, ever changing | Jupiter's surface |
| asteroid composition | iron and rock |
| blue green planet, possibly suffered a collision | Uranus |
| Callisto | Jupiter Valhalla crater basin frozen shockwaves |
| carbon dioxide atmosphere, we have landed there, volcanic features | Mars and Venus |
| Ceres | smallest Dwarf planet |
| Charon | Pluto largest in relation to its planet synchronized |
| comet composition | ice |
| Deimos | Mars, 30 hour orbit, name="panic" |
| Earth | largest Terrestrial planet |
| Earth MSD | 24 h |
| Eris | largest Dwarf planet |
| Europa | Jupiter smooth ice crust liquid ice ocean |
| Ganymede | Jupiter Largest moon in solar system |
| Have spins that are retrograde | all Jovian planets |
| Io | Jupiter current volcanic activity, endlessly turning itself out |
| Jovian planets with atmospheric banding, they radiate more energy than they receive from the sun | Jupiter and Saturn and Neptune |
| Jovian planets with rings | all |
| Jupiter | largest Jovian planet |
| Jupiter | king of planets, 4 moons, Great Red Spot |
| Jupiter MSD | 9.92h |
| Jupiters moons | 60 moons |
| Lead would melt, no moons | Mercury and Venus |
| Mars | red color, rocky, white polar caps, once had water |
| Mars | third largest Terrestrial planet |
| Mars MSD | 24h39m |
| Mercury | smallest Terrestrial planet |
| Mercury | no atmosphere, large iron-core, hot enough to melt lead and tin |
| Mercury MSD | 176 d |
| meteor | anything interacting with the Earth's surface |
| meteor | in space |
| meteorite | found |
| meteoroid | falling or striking |
| Mimas | Saturn Has crater almost ¼ it size; causes Cassini Division |
| Neptune | smallest Jovian planet |
| Neptune MSD | 16.11h |
| Nereid | Neptune Most eccentric orbit of moons in solar system |
| number of Pluto moons | three |
| Percival Lowell | believed canals on Mars were man-made |
| Phobos | Mars 8 hour orbit (month name = "fear" |
| Planets unknown to ancient man, blue from the methane | Uranus and Neptune |
| Pluto | second largest Dwarf planet |
| remnants of solar system formation | asteroids, meteors, comets |
| Saturn | second largest Jovian planet |
| Saturn MSD | 10.40h |
| Saturn's moons | 50 plus |
| Sedna | third largest Dwarf planet |
| spins are retrograde | Venus and Uranus |
| Terrestrial planets | Mars Venus Earth Mercury |
| Titan | Saturn substantial methane atmosphere second largest moon |
| Triton | Neptune 6 day retrograde orbit, coldest surface of the solar system |
| Two moons of Mars | Deimos and Phobos |
| Uranus | third largest Jovian planet |
| Uranus MSD | 17.2h |
| Venus | cold, bright light from clouds, carbon dioxide gasses, extreme atmospheric pressure |
| Venus | second largest Terrestrial planet |
| Venus MSD | 117 d |
Drag corresponding items onto each other to make them disappear.
Start Game