Non-Newtonian fluid is a mysterious and special type of fluid and does not conform to Newton's law of viscosity. This means that when a non-Newtonian fluid is subjected to a force, such as striking, impact, or stepping, its viscosity changes. Sometimes, this change makes the fluid easier to flow, while at other times, it becomes as hard as a solid. Students made non-Newtonian fluids using starch, experiencing its viscosity changes, while having fun and understanding the scientific principles behind it.