Are Saturns rings ephemeral (geologically speaking) or eternal?
Team (A) will take the point of view that the rings formed with the planet, have been there all that time and will continue to be there forever. Team (B) will take the point of view that the ring system comes and goes, that it does not last forever. Both teams need to discuss the characteristics of the Saturnian ring system and how those characteristics, and those of Saturn and the other Jovian planets, helped them reach their opinion.