| Questions | Answers |
|---|---|
| What planet's atmosphere has oxygen? | Earth |
| What planet is the hottest planet? | Venus |
| What planet is the windiest planet? | Neptune |
| What planet is the largest planet? | Jupiter |
| What planet was Mariner 10 the 1st to visit in 1974? | Mercury |
| What planet has water found only in its polar ice caps? | Mars |
| What planet has the most beautiful rings? | Saturn |