Cornstarch Mud and Its Properties

What is a non-Newtonian fluid?

• A fluid that behaves like a solid under all conditions

• A fluid that changes its viscosity under different conditions

• A fluid that evaporates quickly

• A fluid that remains constant in viscosity regardless of pressure

Why did the presenters decide to use a cement truck?

• To measure the exact amount of cornstarch needed

• To store the cornstarch mud for later use

• To transport the cornstarch mud to another location

• To mix the cornstarch and water more efficiently

What happens to cornstarch mud when sudden pressure is applied?

• It changes color

• It solidifies

• It evaporates

• It becomes more liquid-like

What must the presenters do to successfully run across the cornstarch mud?

• Walk slowly and carefully

• Keep their feet moving quickly

• Stand still and wait

• Jump as high as possible

What is the main scientific principle demonstrated by running on cornstarch mud?

• The principle of buoyancy

• The principle of thermal expansion

• The principle of shear thickening

• The principle of capillary action