Making non-Newtonian fluid

Non-Newtonian fluid refers to the fluid that does not meet Newton’s experimental law of viscosity, that is, the relationship between shear stress and shear strain rate is not linear.

Non-Newtonian fluid is widely found in life, production and nature.

Today, Dr. Francisco will lead everyone to make simple non-Newtonian fluid!

Materials: starch, water, container for liquid

Method: Put the prepared starch into a container, then pour a certain proportion of water, hand stir the mixture evenly! As simple as that, our non-Newtonian fluid is done!

Students try to pat it, so elastic! It feels like liquid when hand slowly goes in, and solid when hand quickly draws out, it is really a tough guy that only yields to soft approach! The students are intrigued and wonder why this is the case. They explore and discover that there is a lot of fluid in life that is non-Newtonian!

Except water and air, most of the fluid in the kitchen is almost non-Newtonian, such as sauces, milk, dough, jelly, toothpaste, glue...It's so amazing! You might as well try it!

The ECA science course of CISS provides students with a variety of small wisdom that is close to life but seldom known, while enables children to have new discoveries and big surprises every day.

At CISS, children's growth is joyful and learning is diverse.