Year 5 were set a challenge to explore what happens when you add water to corn flour. We discovered that it made an unusual fluid called oobleck which is a Non-Newtonian Fluid. This means that when pressure is added (e.g. you punch it) it acts like a solid and is hard. When you pick it up it acts like a liquid and is runny.

As you can imagine, the classroom was a little bit messy!