By moving slowly, the cornstarch particles have time to move out of the way. Release your pressure or slowly dip your spoon into the mixture and it will act like it’s more like water. It will feel hard and you can even form the oobleck into a ball if you try with your hands. Here’s how to see the difference you can make by applying pressure to your oobleck: Apply quick pressure with a spoon and this will increase the oobleck’s viscosity by forcing the cornstarch particles together. Whereas warm temperatures melts ice and turns it into a liquid. Cold or freezing temperatures turns water into ice. Sort of like how temperature changes the properties of water. Making oobleck is a great science experiment to show how changes in pressure can change the properties of some materials. At times, it may seem like a solid or a liquid but it acts differently than a normal solid or liquid. Oobleck isn’t a liquid or a solid, it’s a non-Newtonian fluid. If you want to make slime too, you can find all of our slime recipes here. This simple oobleck recipe is easy to do and kids will love touching and playing with it! If your kids love to play with slime then they will also love oobleck. You can leave it without color or make any color you like. We made ours green to turn it into a pretend Witch’s brew for Halloween. Two ingredients you likely already have in your kitchen cupboards! You can also add some food coloring to it. Oobleck is a mixture of cornstarch and water. How to Make Oobleck: Step-by-Step Instructions.
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