Recipe found here: http://skiptomylou.wordpress.com/2007/03/02/oh-the-places-you-will-go/
If you quickly smack oobleck with your hand it immediately turns into a solid, instead of splashing or moving. If you slowly move oobleck it reacts like a liquid.
- 2 cups of cornstarch
- 1 cup water
- a few drops of food colouring (optional)
- mix ingredients together
- try it (hit it then pour it off a spoon) before adding more than 1 cup of water