Slime is a gelatinous and mushy substance that is a non-toxic toy for children and perfect for growing preschoolers. It is nourishing to play with slime as it involves sensory amusement, and allows preschoolers to explore the world of inventiveness in them. Slime is also science and introduces kids to the scientific concepts of polymers, non-Newtonian fluids, viscosity and more. Slime is a problem solving exercise that illustrates math and ratios. It is messy, tactile, and a great sensory play item for older and younger kids.