In a large mixing bowl, combine the corn starch, water, and kool-aid. Let your child get their hands in the mixture and start incorporating the mixture.

The mixture should be thick enough to be pressed into a ball, but the mixture will turn into a liquid as soon as you stop pushing on it. If the mixture is too thick, add a few tablespoons of water. If the mixture is too thin, add a few tablespoons of corn starch.

Allow your child to experiment with how the oobleck will behave with different amounts of pressure.