Mix the cornstarch and water until your oobleck is formed. Mix 2 cups of cornstarch to 1 cup of water into a bowl. Here are the step-by-step instructions for how to make oobleck:ġ. How to Make Oobleck: Step-by-Step Instructions If you want to wash it out, make sure to mix it with a lot of hot water. The next day, you can take a spoon and smash it up into little pieces that can be placed in your green bin. To dispose of the oobleck, we like to let it dry out overnight. Make sure you are using the white cornflour. Note: Cornstarch may also be referred to as cornflour. Here’s what you’ll need to make this oobleck recipe: If you want to pair this activity with a book, you can read the Dr Seuss book, Bartholomew and the Oobleck. 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.

Doctor seuss oobleck