My kids and I figured out that an overdiluted mixture can be a lot of fun too. Take a clear pie pan or dish. Add a quarter to half an inch of water, then a co

My kids and I figured out that an overdiluted mixture can be a lot of fun too. Take a clear pie pan or dish. Add a quarter to half an inch of water, then a couple drops of food coloring, and slowly mix in cornstarch and observe how it behaves. We found a ratio that was runnier than oobleck, but if you let it settle, the watery color and the cornstarch would separate a little into layers. You could then stir it and create all sorts of cool slowly moving swirls that eventually fade away. We found you could even use 2-3 colors. The colors mix a little, but you still get different layers that create multicolored swirls when disturbed. A piece of white paper under the glass dish makes it easier to see.