Oobleck Recipe

As promised the recipe:

Materials

• 1 cup of water

• 1 to 2 cups of cornflour

• Mixing bowl

• Food colouring (optional)

Preparation

• Pour one cup of cornflour into the mixing bowl, and dip your hands into it. Can you feel how smooth the powder is? It's made up of super-fine particles.

• Now pour the water in, mixing slowly as you go. Keep adding more water until the mixture becomes thick (and hardens when you tap on it). Add more cornstarch if it gets too runny, and more water if it becomes too thin.

• Add a few drops of food colouring if desired. (If you want to turn your Oobleck another hue, it’s easier to add the colouring to the water before you mix it with the cornflour.)