When scientists tried to find a rubber substitute for the US during WWII, they stumbled upon a product that would entertain children for generations. Silly Putty is silicone plastic “clay” sold in an egg-shaped plastic container and marketed as a children’s toy. As an inorganic polymer, it can pick up ink when pressed against a newspaper; the imprint can then be stretched in any direction. It also bounces, breaks, and “melts” into a puddle. What causes these unusual flow characteristics? Discuss