Oobleck is a strange mixture. When you put your hands into it, it's semi-solid, almost like mud. But........ when you lift a handful up (be sure to keep your hand over the container) it returns to a more liquid state. Kids are amazed by this seemingly magic stuff.
Ingredients
Cornstarch
Water
Food Coloring
Directions
Add water slowy to cornstarch until desired consistancy is obtained. Mixture
should be smooth, but not too watery. Add food coloring. Store in a large
container with lid. Usually lasts for a week or so at a time. You may need
to add a bit of cornstarch daily.