what makes quicksand sink
Quicksand is a colloid hydrogel consisting of fine granular material (such as sand or silt), clay, and water. Quicksand forms in saturated loose sand when the sand is suddenly agitated.When water in the sand cannot escape, it creates a liquefied soil that loses strength and cannot support weight.Quicksand can form in standing water or in upwards flowing water (as from an artesian spring).eople falling into (and, unrealistically, being submerged in) quicksand or a similar substance is a trope of adventure fiction, notably in movies. According to Slate, this gimmick had its heyday in the 1960s, when almost 3% of all films showed someone sinking in mud, sand, or clay.