Good-bye Cheyenne

Last week Cheyenne had her last day in our classroom.
Her family is moving up north to start a new life in the country.
We will miss Cheyenne's enthusiasm. laughter, energy and smile.  She was a big character in our class and boy will it be quiet without her.
We wish her all the best at her new school and hope she will visit us again one day!

Oobleck

As part of our Mysteries and Clues unit we have been looking at mysteries in Science.

The first lesson we did looked at a mysterious substance called Oobleck.

Oobleck is a non-newtonian liquid.
Here is an explanation of what this means:

All fluids have a property known as viscosity that describes how the fluid flows – commonly thought of as how thick or thin a fluid is.

For instance, honey is much more viscous than water.

When a fluid’s viscosity is constant it is referred to as a Newtonian fluid. Oobleck is an example of a fluid whose viscosity is not constant, it changes depending on the stress or forces applied to it. If you poke it with your finger and apply a large force, it becomes very viscous and stays in place. If you gently pour it, applying little force, it will flow like water. It becomes more viscous when agitated or compressed

We had a lot of fun experimenting and making this crazy substance!!