Matter is anything that takes up space, such as air, trees, bugs, even people. Typically, matter is categorized under three different categories: solids, liquids, and gases. Oobleck, which gets it's ...

Oobleck is a non-Newtonian fluid, which is a fancy term for a liquid whose viscosity varies with pressure. Is it a rock? Is it a liquid or solid? It’s both! Making your own oobleck is a simple, ...