How to Make Putty for Oobleck
Oobleck, named after the Dr. Seuss Book "Bartholomew and the Oobleck," is a non-Newtonian fluid you can make at home. This putty-like substance has the properties of a liquid when you press your finger or an object into it slowly. It gives way, allowing the object to sink down. However, when you hit a non-Newtonian fluid hard, it resists, causing the object to bounce back. Making your own Oobleck is an inexpensive, educational science project.
Things You'll Need
- Cornstarch
- Bowl or plastic container
- Measuring cup
- Spoon
- Food coloring (optional)
Instructions
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1
Measure 1 cup of cornstarch into a bowl or plastic container.
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2
Pour in 1/2 cup of water.
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3
Stir the mixture thoroughly.
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4
Continue adding cornstarch as necessary, one spoonful at a time, until the Oobleck resists your finger when you poke it hard.
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5
Add a few drops of food coloring as you stir the Oobleck if you want to make colored putty.
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