Heebie Jeebies Newtonian Glow Putty is a great way to see the difference between Newtonian and non-Newtonian fluid – as well as being lots of fun to play with! This non Newtonian fluid behaves as a viscous liquid with slow movements – it stretches and puddles – but as an elastic solid with quick movements – it bounces and snaps. The Glow Putty also illuminates in the dark.
A non-Newtonian fluid is a fluid whose viscosity is variable based on applied stress or force. The most common everyday example of a non-Newtonian fluid is cornstarch dissolved in water. Behavior of Newtonian fluids like water can be described exclusively by temperature and pressure