No, this is not just a bowl of milk, although it may look like that. This is much, much more than that. My friends, this is Oobleck. If you haven’t heard of this, today is the day you must give it a try. I have heard there is a Dr. Seuss book about Oobleck, although I cannot say I have read it. But I do know the miracles of Oobleck. 

Oobleck is a SUPER fun kid activity, although I still love to play with it. When you gently put your hand into it, it is as runny as can be. With any amount of pressure, however, the Oobleck becomes stiff. With enough pressure, you can make it into a ball, or even make it crack! Yet, once you stop pressing it, it will melt out of your hand again. 

The Myth Busters actually did an episode about Oobleck once. They filled a pool with it to see if they could run across it. As long as they slapped their feet hard against the Oobleck they did okay, but if they didn’t stomp hard enough, they started to sink. I am telling you, this is cool stuff!

We always colored it with food coloring, but I didn’t have any on hand when I made it recently, so we just did white. It is just cornstarch and water, so you probably already have everything on hand. You can make it in any amount as well. For us, the bigger the quantity the better! The porportions are just 1 part water and 2 – 2 1/2 parts cornstarch. You just have to mix it up and test it out.

The  Let me tell you the other cool thing about Oobleck. Although it is super messy and splatters everywhere when children are having fun with it, it will dry as a powder and easily brush off, or wash off with water. Easy clean up, although I would recommend doing it outside if you have small children. Garden hoses work great for cleaning up this activity. 



1/2 cup water
1 to 1 1/4 cup corn starch
Food coloring (optional)


In a large bowl, mix the water, corn starch and food coloring together. It should be difficult to stir, but you should be able to get all the cornstarch wet. You may need to mix with your hands. If you can’t get all the cornstarch wet, add a little water (1 tsp at a time) until the cornstarch is just wet. If you hit your palm against the Oobleck and it isn’t hard, add more cornstarch (1 TBS at a time) until the cornstarch just barely mixes in, and it is hard when you hit it, but runny when you relax your hand into it.

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