Peppermint Oobleck: We mixed cornstarch, water and candy canes together. It became a solid. No wait it became a liquid. Wait, it became both! We were able to pick up solid a chunk and pack it into a ball, but as soon as we stopped forming the ball it oozed into a liquid. The children learned that this is called a non-newtonian liquid, which is a substance that acts like both a liquid and a solid.
