Use The Outer Planets Quiz to test your knowledge of why Jupiter, Saturn, Uranus, and Neptune are called the "gas giants", what celestial body orbits alongside Pluto, and the unique characteristics of each of the five planets farthest from the sun. This quiz will also test your knowledge of why Jupiter is called the Spotted Giant and why Galileo thought Saturn's beautiful rings were "ears" around the planet. This online quiz contains 25 questions from a pool of over 100 thereby allowing repeat use. We recommend that students study the relevant videos provided on this site on this subject before attempting this quiz.
