I saw on a web page a video of tiny Agnes Scott College vs Princeton University from 1966 on GE College Bowl.Agnes Scott won (!), but one of the questions that both schools got wrong was asked by the moderator: The speed of sound in air is about 1,100 feet/sec. The speed of sound in steel is about 16,400 feet/sec. Why does sound pass through steel faster than air? Princeton answered because steel was denser. Agnes Scott said that the molecules of steel were closer together. The moderator said both answers were incorrect. The moderator said the correct answer was that steel was more elastic than air. Can someone explain this answer of the moderator?