Izzy and I had fun making another messy project called Oobleck. It defies Newton's Third Law of Motion by not behaving the way it is suppose to (see the pictures). All you do is put down some plastic wrap on the counter, and then in a bowl and spoon you are going to throw away, mix a little water into corn starch until you get this. It took us awhile and yes, I was frustrated, but it began to work and was well worth the waiting. (Ohh, another thing, throw as much of this as you can in the trash, it will act the same way in your sink drain. I had to put a stopper in the drain, just to remind myself not to put any of it in).
Here it is as a solid and within seconds....