| A | B |
| Mercury | Has the greatest variation between night and day temperatures |
| Venus | Hottest planet because the atmosphere traps the sun's heat |
| Earth | Only planet with liquid water |
| Mars | Had liquid water at one time but has ice on the surface now. |
| Jupiter | Large Red Spot has a violent atmosphere |
| Saturn | The lightest planet. |
| Uranus | Tilted on axis more than any other planet |
| Neptune | The Great Dark Spot |
| Pluto | Astronomers predicted it's existence before they actually found it with a telescope in 1930 |