Cornstarch and water are the only ingredients necessary.

Oobleck Ingredients List

• 1 cup of water

RELATED: Turn Milk into Plastic with this Science Experiment

Measure out 1 to 2 cups of cornstarch.

Step 1: Measure the Ingredients 

Measure out 1 cup of water into one small bowl and 1-2 cups of cornstarch in another bowl. You can add a few drops of food coloring if you'd prefer a colorful Oobleck. Maybe Seussian green?

Slowly mix the cornstarch into the water, working to get the right consistency.

Step 2: Combine Ingredients 

With a spoon, slowly mix the cornstarch into the bowl of water. Add a little bit at a time until you have the right consistency. Adding more cornstarch will make the Oobleck thicker while adding more water will make it runny. 

Kids love to play with their homemade creation.

Step 3:  Experiment with the Oobleck 

Run your fingers through the Oobleck and observe what happens. What happens if you try to grab a handful? Try squeezing it in your fist. What makes the Oobleck change? (Answer: Applying pressure will make it thicker.) 

Even if Oobleck is a bit less messy than slime, you'll want to do this science experiment outside, on a craft table, or an area layered with newspaper or a cheap tablecloth....because, kids, right?