- 1Which planet is closest to the Sun?
- 2True or false: Earth completes one rotation in about 24 hours.
- 3Why does a year on Mars last longer than a year on Earth?
- 4Name one difference between a rocky planet and a gas giant.
Teacher answer key: The download separates student questions from teacher answers, so the same quiz can be played orally, in teams, or completed on paper.
