Oobleck!

We did a little more investigating states of matter recently, this time by playing with "oobleck," made from cornstarch and water. We've talked about the 3 main states of matter, solid, liquid, and gas, and we started this investigation with the questions - Is it a liquid? Is it a solid? What do you notice to make you think so? Cormstarch and water form a "colloidal solution" in which the particles remain evenly distributed through the solution and never settle, displaying very unusual (and fun) physical properties. The answer to our questions? It's both a liquid AND a solid!