![]() Unlike Newtonian Fluids, the physical behavior of Non-Newtonian Fluids depends not only on the temperature and pressure of the surroundings but also on the applied forces and resultant stresses acting on them from second to second. The most common everyday example of a Non-Newtonian fluid is cornstarch dissolved in water, more fondly known as “Oobleck”. Physical behavior of Newtonian Fluids can be described exclusively by the temperature and pressure of the surroundings.Ī “Non-Newtonian Fluid”, however, is a fluid whose viscosity is not constant but instead variable based on the applied force and resultant stress placed upon the fluid. All of these examples of fluids follow Newton’s Law of Viscosity and are all, therefore, “Newtonian Fluids”. Many common fluids like air, gasses, water and alcohol have a constant, unchanging viscosity, or thickness. Both liquids and gasses are considered fluids. ![]() In the sciences a fluid is defined as a substance that may flow, be poured, and which doesn’t pile upon itself when poured. Volume can be scaled up or down, just always keep the cornstarch to water ratio at 2:1īackground Science Learning Question: What is a Non-Newtonian Fluid?.If too runny add more cornstarch (1 tbsp at a time).If too hard add more water (1 tbsp at a time).Test the consistency with your hands, should be hard when squeezing and runny when holding.Stir the ½ cup of water into the cornstarch.Add 4-5 drops of food colouring/glitter to ½ cup of water.Place 1 cup of cornstarch in a bowl, mix out any lumps.**Garbage bags, paper towels/surface cleaner (or other safe disposal method).*Hand sanitizer (optional, to clean hands afterward).*Rubber spatulas (optional, more fun to mix with hands).Measuring cups & spoons (several ½ cup/1 cup and several 1 tbsp).Explore the biochemistry of Non-Newtonian Fluids and their unique properties as you get your hands on some oobleck! Volunteers: 2-4ġ: to discuss the procedure/background scienceġ-3: to hands-on assist with the procedure Equipment
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |