It basically starts out all runny, but when you apply pressure to it, it turns into a hard solid ball.
Once pressure is released, it automatically turns into a runny, gloopy mess again. Apply pressure and it stars all over again.
The kids played with this stuff for over an hour. After a while, the liquid dehydrates from it and it just starts to crumble, but for a while it is SO fun to play with. I even enjoyed it!
If you want to make your own Oobleck, here is the recipe. I love it because it uses simple household items.
Oobleck
2 parts cornstarch
1 part water
food coloring of your choice
(FYI--the food coloring will stain your hand, but it should come off with soap and water)
Mix all items together and play until your heart's content!
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