Return to Unit List Grade 6 Lesson Review   Type your name:   The second largest planet is methaneringletsparticlesSaturnSelect your answer. Its distance from the Sun is approximately 1.4 billion windskilometersringletsyearsSelect your answer. Saturn takes 29.5 kilometerswindsringletsyearsSelect your answer to make a complete journey around the Sun. The flybys in the early 1980s taught us much about this planet. Saturn has SaturnsevendensekilometersSelect your answer major rings. Some are made of thinner rings known as kilometersringletsmethaneparticlesSelect your answer. The rings are 2 kilometers thick and are made of particlesyearsmethanekilometersSelect your answer that range in size from several centimeters to a few meters. Saturn is less yearsdenseparticlesringletsSelect your answer than water. It has kilometersringletsparticleswindsSelect your answer that move at 500 meters per second. Saturn's atmosphere is composed of hydrogen, with small quantities of particlesringletsyearsmethaneSelect your answer and helium.