Use this list
| From | To |
|---|---|
| Which four planets are terrestrial, or rocky, planets? | Mercury, Venus, Earth, and Mars |
| Which is the smallest planet? | Mercury |
| Which planet is the hottest? | Venus |
| Which planet is the only known world with life? | Earth |
| Which planet is known as the Red Planet? | Mars |
| Which rocky planets have no moons? | Mercury and Venus |
| Which rocky planet has two small moons? | Mars |
| Which rocky planets have substantial atmospheres? | Venus, Earth, and Mars |