| A | B |
|---|
| Largest known volcano in Solar System | Olympos Mons |
| First planet to appear in the night sky | Venus |
| Great Red Spot | Enormous storm |
| Objects between Mars and Jupiter | Asteroids |
| The very center of the sun | Core |
| Venus's atmosphere made of this gas | Carbon dioxide |
| Nubmer of rings orbiting Uranus | Two |
| Neptune's moon | Triton |
| Saturn's bigest moon | Titan |
| Number of moons orbiting Saturn | 21 |
| Planet lying on its side | Uranus |
| Dark regions on the sun | Sunspots |
| An object that orbits a planet | Satellite |
| Planet with 16 moons | Jupiter |
| "Dirty snow ball" | Comet |
| First men on the moon | Aldrin and Armstrong |
| First person in space | Yuri Gagarin |
| Largest surface feature on Mercury | Caloris Basin |
| Brightest star in night sky | Sirius |
| North star | Polaris |
