How to Make Oobleck: A Complete Guide

The Science Behind Oobleck

Hello Challenger! Are you ready to dive into the fascinating world of oobleck? Before we begin, let’s discuss the science behind this strange substance. Oobleck is a non-Newtonian fluid that exhibits both liquid-like and solid-like properties. It gets its name from the Dr. Seuss book, Bartholomew and the Oobleck.

When a force is applied to oobleck, its viscosity increases, causing it to become more solid. Conversely, when the force is removed, the viscosity decreases, causing it to behave like a liquid. This unique behavior is due to the distribution of its ingredients, namely cornstarch and water.

Now that you know the science behind oobleck, let’s dive into how to make it!

Ingredients You’ll Need

To make oobleck, you’ll need the following ingredients:

Ingredients Quantity
Cornstarch 2 cups
Water 1 cup
Food coloring (optional) A few drops

Step-by-Step Instructions

Now, let’s get started with making your own oobleck:

Step 1: Add Cornstarch to a Bowl

Add 2 cups of cornstarch to a mixing bowl. Make sure that the bowl is large enough to accommodate the water and food coloring (if you decide to use it) as well.

Step 2: Add Water

Slowly pour 1 cup of water into the bowl with the cornstarch while stirring continuously. Keep stirring until the mixture is smooth and there are no lumps.

Step 3: Add Food Coloring (Optional)

If you want to add color to your oobleck, add a few drops of food coloring to the mixture and stir until the color is evenly distributed. Note that the color may be lighter than what you expect due to the cloudiness of the cornstarch mixture.

Step 4: Observe the Consistency

Once you’ve mixed your ingredients, observe the consistency of your oobleck. Note that it should be viscous and slightly solid-like when you touch it, and will probably look like a solid ball of dough when you scoop it.

Step 5: Experiment!

Now that you have your oobleck, experiment with it! Try to roll it into a ball, or make it ooze through your fingers. You can even try walking or running on top of it!

Step 6: Store It in an Airtight Container

When you’re finished experimenting, store your oobleck in an airtight container. Note that oobleck will dry out over time, so cover the container tightly to prevent this from happening.

Step 7: Dispose of It Properly

When you’re ready to dispose of your oobleck, make sure to dispose of it properly if you used food coloring in your mixture. Remember to pour it down the drain or flush it down the toilet.


Q: Is oobleck safe to play with?

A: Yes! Oobleck is non-toxic and perfectly safe to play with. However, it’s important to note that it’s not safe to ingest, so make sure to supervise children when they’re playing with it.

Q: How long does oobleck last?

A: Oobleck can last up to a few days if stored in an airtight container. However, note that it will start to dry out over time, so it’s best to dispose of it after use.

Q: Can I eat oobleck?

A: No! Oobleck is not food and should not be consumed.

Q: Can I use a different type of flour?

A: It’s best to stick with cornstarch as the main ingredient, as it’s the most effective in creating the unique properties of oobleck. However, you could experiment with other types of flour if you’re feeling adventurous!

Q: Can oobleck stain clothes?

A: Yes, oobleck can stain clothing, so it’s best to wear old clothes when playing with it. However, with proper washing, the stains can usually be removed.

Q: Can I add glitter to my oobleck?

A: While it’s tempting to add glitter to your oobleck for some extra sparkle, we recommend against it. Glitter can be difficult to clean up and may cause irritation to the skin if not properly washed off.

Q: Why is it called oobleck?

A: Oobleck gets its name from the Dr. Seuss book, Bartholomew and the Oobleck. In the book, oobleck is a green substance that falls from the sky and wreaks havoc on the town.

Q: How can I make oobleck less sticky?

A: If your oobleck is too sticky, try adding more cornstarch to the mixture. Start with a tablespoon at a time and keep adding until you reach your desired consistency.

Q: Can I microwave oobleck?

A: No! We do not recommend microwaving oobleck, as it can potentially damage your microwave and create a big mess.

Q: Can I make oobleck without water?

A: No, water is an essential ingredient for making oobleck. However, you could experiment with different liquids to see if you can create a similar substance!

Q: Can oobleck clog drains?

A: Yes, if you’re not careful, oobleck can clog your drains. Make sure to dispose of it properly if you use food coloring in your mixture, and run hot water down the drain to help break up any remaining chunks.

Q: How can I clean up spilled oobleck?

A: Oobleck can be messy, but it’s easy to clean up with some hot, soapy water. Simply scrub the area with a sponge and rinse well with water.

Q: Can I use oobleck as a stress ball?

A: Yes! One of the great things about oobleck is that it can act as a stress ball. Plus, it’s much more fun than a regular stress ball!

Q: Can I make oobleck in different colors?

A: Absolutely! You can add food coloring to your oobleck to create any color you desire.

Q: How can I make oobleck dry faster?

A: You can speed up the drying process of oobleck by placing it under a fan or in a warm, dry place.


And there you have it, Challenger! The complete guide on how to make oobleck. We hope that you enjoyed learning about the science behind oobleck and how to create this unique substance.

Now that you have the knowledge, it’s time to get creative and experiment with this strange and fascinating substance. Don’t forget to use your imagination and have fun!

Remember to store your oobleck in an airtight container and dispose of it properly. With these tips and tricks, you’ll be an oobleck expert in no time. Have fun creating your very own oobleck!


The information provided in this article is for educational and informational purposes only. The author and publisher of this article are not responsible for any adverse effects or consequences that may occur from the use of the information provided in this article.