Have you heard of Oobleck? It’s a type of slime made from cornflour and water. It’s not quite a solid and not quite a liquid… so what is it?!
Oobleck is a non-Newtonian fluid. It acts like a solid when you apply pressure to it, and acts like a liquid when you take that pressure away!
SILLY SCIENCE WITH SIMON
You can make Oobleck at home by mixing the following in a bowl:
- 2 cups of cornflour
- 3/4 cup of water (add up to 1/4 cup of extra water, until it flows when you tip the bowl)
- 20 drops of food colouring!
Once you’ve made it, roll up your sleeves and test it out! Try hitting the Oobleck with your hands – does it feel like a solid? Try gently lowering your hands into it – does it feel like a liquid? How cool is this stuff?!