This quiz works best with JavaScript enabled.
Select an option to see the correct answer instantly.
Correct Answer: C) Pluto.
Correct Answer: D) Phases.
Correct Answer: D) The light-year.
Correct Answer: A) 13700 million years ago.
Correct Answer: D) Its atmosphere is capable of supporting life.
Correct Answer: D) International Space Station.
Correct Answer: C) Mars.
Correct Answer: B) Because it is the only planet with life.
Correct Answer: D) Change their mass.
Correct Answer: C) Saturn.
Correct Answer: A) A planet that has a hard, rocky surface.
Correct Answer: D) Venus.
Correct Answer: B) The planets, the sun, any moons, and other bodies that revolve.
Correct Answer: B) On a spiral arm.
Correct Answer: A) Craters.
Correct Answer: B) Gas, dust, stars, and objects that orbit stars.
Correct Answer: D) All of the above.
Correct Answer: C) Earth.
Correct Answer: D) Earth.
Correct Answer: C) Jupiter.
Correct Answer: C) Asteroid.
Correct Answer: B) Mars.
Correct Answer: A) An Astronomical Unit.
Correct Answer: B) Rotate.
Correct Answer: D) All of the above answers are correct.