Watch the short video below to find out how to make slime.

Items you'll need are:

• Cornflour
• Water
• Food colouring
• Mixing bowl
• Spoon

Science behind the experiment

Slime is an example of a non-Newtonian fluid. When you apply a force (like a stir) to the slime, it gets thicker and more like a solid. When you stop applying a force, then the slime gets runny and more liquid like again.

Key Terms

• Non-Newtonian Fluid – A fluid that changes its viscosity (how fast or slowly it will flow) when the forces on it changes.
• Force – Forces are pushes and pulls in a particular direction.
• Solid – Solids stay in one place, can be held and keep their shape.
• Liquid – Liquids can flow or be poured easily, change their shape depending on the container they are in, but their volume stays the same.