How To Make Oobleck Without Cornstarch?

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Oobleck, that mysterious substance that behaves like a liquid and a solid, has captivated the imaginations of children and adults alike. Traditionally made using cornstarch, Oobleck possesses unique properties that make it a delight to play with and explore. However, if you need cornstarch in your pantry, fear not! There is an alternative method to create Oobleck using simple ingredients you may already have at home.

In this article, we will guide you through making Oobleck without cornstarch, allowing you to enjoy this captivating substance’s fascinating sensory experience and scientific wonders. Get ready to unleash your creativity and dive into the world of Oobleck without the need for cornstarch!

What is Oobleck?

Oobleck is a fascinating substance that behaves like a liquid and a solid, defying our understanding of traditional states of matter. It is classified as a non-Newtonian fluid, named after a sticky substance from Dr. Seuss’ book, “Bartholomew and the Oobleck.” When pressure is applied to Oobleck, it solidifies and can be molded or shaped, but as soon as the pressure is released, it flows and drips like a liquid.

The unique properties of Oobleck stem from its shear-thickening behavior, which changes depending on the amount of force exerted on it. The primary ingredient traditionally used to make Oobleck is cornstarch, but alternative recipes allow you to create Oobleck without cornstarch using simple household ingredients. Oobleck is not only a source of entertainment but also an educational tool, offering an opportunity to explore concepts of viscosity, states of matter, and scientific principles in a hands-on and engaging manner.

Why should you make it yourself?

Making Oobleck yourself offers a range of benefits and reasons to embark on this DIY adventure. It allows you to actively engage in the process, gain a deeper understanding of the science behind its behavior, and customize it according to your preferences. It is also cost-effective and easily accessible, with the required ingredients often common pantry staples or readily available at local stores. Additionally, making Oobleck yourself provides the flexibility to create whenever the mood strikes, ensuring endless entertainment and exploration.

How To Make Oobleck Without Cornstarch?

Step-by-Step Instructions to Make Oobleck Without Cornstarch:

Make Oobleck without cornstarch

1. Gather the Ingredients and Materials

  • 2 cups of all-purpose flour
  • 1 cup of water
  • Mixing bowl
  • Spoon or whisk for stirring
  • Optional: food coloring or scents for customization

2. Prepare the Base Mixture

  • In a mixing bowl, combine the flour and water.
  • Stir vigorously until the ingredients are well incorporated. The mixture should have a thick, paste-like consistency.

3. Adjust the Consistency

  • Observe the texture of the mixture. If it feels too thick or dry, add small amounts of water, a teaspoon at a time, and continue stirring until desired consistency is reached.
  • If the mixture is too runny or watery, gradually add more flour, a tablespoon, while stirring until you achieve the desired thickness.

4. Enhance the Sensory Experience (Optional)

  • Incorporate a few drops of food coloring into the mixture to add color and make the Oobleck more visually appealing. Mix well until the color is evenly distributed.
  • Add scents like vanilla or essential oils to enhance the sensory experience if desired. Start with a few drops, mix thoroughly, and adjust according to your preference.

Tips and Troubleshooting

Tips and Troubleshooting for Making Oobleck Without Cornstarch:

Consistency Control

  • Adjust the amount of water and flour gradually to achieve the desired consistency. Adding more liquid or flour is easier than reversing the process.
  • If the mixture becomes too thick, add water slowly while stirring until you reach the desired texture.
  • If the mixture becomes too runny, sprinkle small amounts of flour and continue stirring until it thickens.

Experiment with Ratios

  • Feel free to experiment with the ratio of flour to water to achieve different oobleck consistencies. Adding more flour will result in a firmer oobleck while adding more water will make it more fluid.


  • Get creative by adding food coloring to the mixture. Start with a few drops and gradually increase until you achieve the desired color.
  • Explore different scents by adding a small amount of vanilla extract or essential oils. Adjust the quantity according to your preference.

Play Area Preparation

  • Oobleck can be messy, so playing with it in a contained area or on a tray is recommended to make cleanup easier.
  • Consider laying down a plastic tablecloth or using a washable mat or tarp to catch spills or splatters.

Storage and Shelf Life

  • Homemade Oobleck is best enjoyed immediately after making it, and it will dry out over time and lose its unique properties.
  • If you wish to store it briefly, place it in an airtight container and refrigerate. Expect it to last for a few days.
  • Avoid disposing of Oobleck down the sink, as it can clog the drain. Instead, dispose of it in the garbage or compost.

Adult Supervision

  • While making and playing with Oobleck is a fun and educational activity, adult supervision is advised, especially for young children.
  • Ensure that participants do not ingest Oobleck, as it is not meant for consumption.

Experiment and Have Fun

  • Oobleck is all about exploration and discovery. Encourage creativity and experimentation by trying different techniques, applying various pressures, and incorporating objects into the Oobleck.
  • Embrace the sensory experience and enjoy the unique properties of this fascinating substance.

Alternative Methods to Make Oobleck

Alternative Methods to Make Oobleck Without Cornstarch:

1. Using Potato Starch


  • 2 cups of potato starch
  • 1 cup of water
  • Mixing bowl


  • In a mixing bowl, combine the potato starch and water.
  • Stir the mixture thoroughly until it reaches a gooey consistency.
  • Adjust the texture by adding more potato starch if it’s too runny or more water if it’s too thick.
  • Explore and play with your potato starch-based oobleck, noting its unique properties and behavior.

2. Using Arrowroot Powder


  • 2 cups of arrowroot powder
  • 1 cup of water
  • Mixing bowl


  • In a mixing bowl, mix the arrowroot powder and water.
  • Stir well until the ingredients are fully combined, and the mixture has a thick, slime-like consistency.
  • Adjust the texture by adding more arrowroot powder if it’s too thin or more water if it’s too thick.
  • Engage in sensory play and enjoy the fascinating characteristics of your homemade arrowroot-based Oobleck.

3. Using Tapioca Flour:


  • 2 cups of tapioca flour
  • 1 cup of water
  • Mixing bowl


  • In a mixing bowl, combine the tapioca flour and water.
  • Stir vigorously until the mixture becomes thick and slimy.
  • If the mixture is too runny, add more tapioca flour gradually until you achieve the desired consistency. If it’s too thick, add a small amount of water and mix well.
  • Dive into the world of tapioca-based Oobleck, marveling at its unique properties and enjoying the sensory experience it offers.

How to store or dispose of your homemade Oobleck

Storing and Disposing of Homemade Oobleck:


  • Oobleck is best enjoyed immediately after making it while fresh and at its optimal texture. However, if you want to store it for a short period, follow these steps:
  • Place the Oobleck in an airtight container to prevent it from drying out.
  • Store the container in the refrigerator to help maintain its consistency.
  • Remember that Oobleck will eventually dry out and lose its unique properties. It’s recommended to use it within a few days for the best experience.


  • When you’re done playing with your homemade Oobleck or if you need to dispose of it, consider the following options:
  • Oobleck is generally safe to dispose of in regular household waste. Please place it in a plastic bag or container and discard it with your other non-recyclable trash.
  • If your Oobleck is made from biodegradable ingredients like flour or starch, you may be able to compost it. Check your local composting guidelines and compost it accordingly.
  • Oobleck can cause clogs in plumbing systems, so it’s best to avoid disposing of it in drains.

Is Oobleck a solid or a liquid?

Oobleck is an example of a non-Newtonian fluid, which means it can exhibit properties of both a solid and a liquid depending on the applied forces. When Oobleck is at rest or handled gently, it behaves like a liquid, flowing and taking the shape of its container.

However, when a sudden force or pressure is applied to Oobleck, such as squeezing or hitting it, it temporarily behaves like a solid, becoming firm and resistant to the applied force. Once the force is removed, it returns to its liquid-like state and flows again. This unique behavior makes Oobleck a fascinating substance to explore and play with.


Oobleck is a remarkable substance that defies our expectations of traditional states of matter. It can be made without cornstarch using alternative ingredients like flour, potato starch, arrowroot powder, or tapioca flour. Making Oobleck yourself opens possibilities for customization, sensory play, and scientific exploration.

By engaging in the process of creating Oobleck, you gain a deeper understanding of its behavior and the principles of non-Newtonian fluids. Whether you’re a child seeking a fun and educational activity or an adult looking to unlock your inner scientist, making Oobleck without cornstarch allows you to indulge in this captivating substance and embark on an exciting journey of discovery.


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