Matter
Is Oobleck Solid or Liquid?
For this experiment Mrs. Vick’s class used the
text, Bartholomew and the Oobleck” to discover the characteristics of solids
and liquids.
A King’s Mishap
Mrs. Vick had begun
the activity by reading Dr. Suess’s book, “Bartholomew and the Oobleck.” Students listened to a story involving a king’s
mishap. The mishap occurs when his
magicians make a new creation called Oobleck.
Oobleck becomes a royal mess!
Make a Prediction
Once Mrs. Vick had
finished reading, the students had made predictions as to what they think will
happen when they mix the ingredients to form Oobleck.
Let the Fun Begin
Students mixed all the
ingredients: water, cornstarch, and food coloring. They then as a group described their Oobleck concoction
with their senses.
What a Fun Mess
Students quickly
realized the characteristics of Oobleck.
If the students had held it still, it behaved like a liquid. However, if students attempted to roll it up,
it had behaved like a solid.
Students had
discovered the ingredient cornstarch is made up of long chains of atoms. When the students had moved it slowly past
one another, it had flowed like a liquid because it was able to easily slide
past each other. However, when they had
squeezed, rolled, or stressed it, the “atom chains” had intertwined and formed a
solid.
This is known as, “Non-Newtonian
Fluids,” it does not have the typical properties of either solids or liquids.
Once the students were
finished playing with their Oobleck creation they were able to discuss their
findings with their group. The students
then filled out their recording sheet to show what their creation had looked like
as a solid form and a liquid form.
As you can see they
had quite a bit of fun playing with this gooey Oobleck mess.