What are 25 facts about quicksand?

Quicksand is a mixture of sand, water, and clay that can trap objects, creating a suction effect. It forms in saturated conditions, usually near riverbanks or marshes, where the sand is loosened by water. Contrary to popular belief, quicksand is not a bottomless pit; a person can often escape by slowly moving their legs. Its density is lower than that of the human body, meaning that a person can float in it with proper movement.