How to make Oobleck Recipe for Sensory Play and Hands-On Learning - Kid Activities with Alexa (2024)

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Oobleck is a super cool science experiment that both kids and adults absolutely love. It’s a weird substance that when you grab it is solid but when you let it go, it falls out like a liquid. After testing many variations of this recipe, I finally got the correct ration to get perfect Oobleck every time! ‘

Follow along, print the recipe and I’ll even show you how to make it and how I set it up for playtime. By the time you read this post, you will have all the tools needed to set up a successful oobleck activity at home or at school.

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How to make Oobleck Recipe for Sensory Play and Hands-On Learning - Kid Activities with Alexa (2)

Sensory play can be a lot of fun and it offers a lot of educational opportunities for your little ones. Oobleck Recipe is a fun way to explore sensory play.

During the fall season, we are always looking for ideas to do at home or at the park with our friends that can offer some educational opportunities.

Last week, I hosted an event with the local mamas and shared with them the opportunity to teach their little ones through play as a demo to my new sensory classes.

We explored the theme apples and we made oobleck as I called the event “messy play apple pie”. I have also made this activity with a melted pumpkin theme and an ocean theme. Follow along so you can get inspired!

I’m totally obsessed with this Oobleck Recipe and I want to share with you how to make it.

“Oobleck is a non-newtonian fluid. That is, it acts like a liquid when being poured, but like a solid when a force is acting on it. You can grab it and then it will ooze out of your hands. Make enough of this oobleck recipe and you can even walk on it!”

Instructables.com

HOW TO MAKE oOBLECK RECIPE

How to make Oobleck Recipe for Sensory Play and Hands-On Learning - Kid Activities with Alexa (3)

Grab a sensory bin, add two parts cornstarch to one part water. Mix and enjoy!

looking to make Oobleck with flour? scroll down and I’ll let you know how to do it. For now, let’s get started making oobleck with cornstarch.

How to make Oobleck | Oobleck Recipe

How to make Oobleck Recipe for Sensory Play and Hands-On Learning - Kid Activities with Alexa (4)

October 6, 2020

byAlexa

Cuisine Edible Safe

Category Age 2+ By Age Fall Seasonal Sensory Recipe Taste Safe Toddler Activities

This stuff is know as “oobleck,” named after a sticky green goo in Dr. Seuss’ Bartholomew and the Oobleck. Scientists, on the other hand, refer to cornstarch and water as a “non-Newtonian fluid” — a material that appears thicker or thinner depending on how it is physically manipulated.

How to make Oobleck Recipe for Sensory Play and Hands-On Learning - Kid Activities with Alexa (5)

Notes

If your oobleck is too hard and not dissolving when you press with your hand and then quickly let go, then add more water.
If the oobleck is too loose and doesn’t harden when you press it with your hands add more cornstarch.
We use this Cornstarch brand for our recipes – available on Amazon or at your local grocery store.

Ingredients

Instructions

  1. In a bowl, measure 4 cups of cornstarch
  2. Add 2 cups of water into the cornstarch and mix until all cornstarch has been absorbed.
  3. Your oobleck is ready when you can grab it and press the mixture in your hand and it’s a hard solid, and when you let it go it quickly dissolves.

©2024 Copyright 2020 @ KidActivitiesWithAlexa.com

https://kidactivitieswithalexa.com/en/sensory-activity-oobleck/

How to clean up Oobleck?

Do not – I repeat – do not throw this down the drain when you are done. It can clock your drain!! Instead, throw away the loose water in the drain as you have your water turned on. The rest (the cornstarch) can be scraped off and thrown in a trash can.

Can You Make Oobleck with Flour?

You definitely can make oobleck with flour. But not just regular flour. You need flours that have starch as that is the component that will make a Newtonian fluids.

You need to look for cornflour and add equal parts cornflour to hot water. (Note: cornflour and corn flour are different. Make sure you get the first one)

Tomake oobleck without cornstarch, mix together 1 part room-temperature water with 2 parts arrowroot powder or tapioca flour.

How to make Oobleck Recipe for Sensory Play and Hands-On Learning - Kid Activities with Alexa (6)

Expand learning with themed Activities

A word on Sensory play

Sensory play is super important for little ones to explore. Just make sure you prepare the area first so that clean us is easier on you! Have a disposable table cover underneath your bin and throw it out after. Wash any clothes immediately as the oobleck will stick to clothing.

Oobleck as Toddler Science Experiment

Oobleck can be used to teach science, after all what happens with this liquid – or solid- is a chemical reaction. We certainly did over on our science week and since this fell over in October we mixed with Halloween. The result? A melted pumpkin!

using the Oobleck Recipe For Play

Obleck is a great sensory material to play you can create a sensory bin and give your little ones spoons, and cups to explore or just let them explore with their hands. You can even freeze it and make an ice cream dough activity!

Oobleck for Toddler Learning

How to make Oobleck Recipe for Sensory Play and Hands-On Learning - Kid Activities with Alexa (7)

I always love to create our toddler events around something to learn about. Oobleck recipe has a lot of teachings on its own as toddler’s very first science experiment, but to make it more conceptual, we used the opportunity to talk about apples. After all, we called our event MESSY APPLE PIE!

We worked on learning about a fruit we see everywhere during this time of year: Apples. What colors they are, how they feel, how they smell, how they taste.

This apple sensory activity allowed us to work on:

  • Language development and vocabulary (we practice how to say a- a- apple)
  • Messy Play and its importance for babies and toddlers
  • An opportunity to play and bond with your little one as moms let loose in a messy controlled environment.
How to make Oobleck Recipe for Sensory Play and Hands-On Learning - Kid Activities with Alexa (8)

During the event, we did two apple-themed messy activities to explore different textures. We worked with red-colored oatmeal and green Oobleck. Both, a representation of our red apples and green apples.

How to make Oobleck Recipe for Sensory Play and Hands-On Learning - Kid Activities with Alexa (9)
How to make Oobleck Recipe for Sensory Play and Hands-On Learning - Kid Activities with Alexa (10)

Buy Ready to use Oobleck

Want to save time? you can buy Jell-O unicorn slime. Well, you need to add extra water to the recipe calls for. This behaves like cornstarch and it smells AMAZING! but a word of warning, this has sugar so it is more sticky than if you use cornstarch with water.

How to make Oobleck Recipe for Sensory Play and Hands-On Learning - Kid Activities with Alexa (11)

How to make Oobleck Recipe for Sensory Play and Hands-On Learning - Kid Activities with Alexa (12)

More Toddler Ideas…

Get tons of creative ideas to do with your toddler at home! Become a PLAY MEMBER by signing up for the newsletter.

Play members get seasonal activity ideas right in their inbox, a special invitation to our Mommy & Me Virtual Circle time, and access to our free library with educational printables and activities to develop your child through sensory play and reach their developmental milestones while getting a head start when entering Pre-K.

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How to make Oobleck Recipe for Sensory Play and Hands-On Learning - Kid Activities with Alexa (2024)

FAQs

What can kids learn about oobleck? ›

Made from a basic mix of approximately 2 parts cornflour to 1 part water, Oobleck can teach children scientific skills of observation and prediction. It is also a fantastic way to introduce children to basic concepts of matter.

How to make oobleck at school? ›

In small groups, make a bowl of oobleck: a. Put 1 cup of cornstarch in a bowl and add 1-2 drops of food coloring (optional). b. Slowly add up to ¾ cup water while mixing, until all the cornstarch is wet.

How to play oobleck? ›

Try poking the Oobleck quickly and see how your finger will bounce off while it acts like a solid! Now slowly poke the Oobleck and your finger will easily sink to the bottom! Let your hand sink to the bottom of the bowl and then observe what happens when you try to pull your hand out quickly, and then slowly.

How to get oobleck off hands? ›

You can use warm water to clean the Oobleck off your hands, clothes, and even off of your counter. You can rinse a bit of it out of your bowl, but make sure not to let too much of it get down the sink.

How to make oobleck for beginners? ›

Easy oobleck recipe

Tip the cornflour into a bowl and slowly stir in the water. If the mixture seems too dry, add a few drops more water. If it's too liquid, add some more cornflour. The oobleck is ready when the mixture is thick and fluid, but starts to tear if stirred fast.

What are some fun facts about oobleck? ›

Oobleck isn't like most solids or liquids—it is a non-Newtonian fluid. Cornstarch is made up of very small particles (try looking at it with a magnifying glass). When you press it quickly, it acts more like solid. But if you press it more slowly or even pour it, it acts like a liquid.

How to explain oobleck? ›

Oobleck is a suspension of cornstarch and water that can behave like a solid or a liquid depending on how much pressure you apply. Try to grab some in your hand, and it will form a solid ball in your palm until you release the pressure. Then, it will flow out between your fingers.

What is the formula for oobleck? ›

Making Oobleck is really easy– simply mix cornstarch and water in a bowl. Be sure to measure a 2:1 ratio of ingredients. For example, 2 cups of cornstarch and 1 cup of water. Once mixed, experiment by applying different levels of force to the substance!

How to make oobleck busy toddler? ›

Generally, it's a 2 to 1 ratio of cornstarch to water (so 1 cup of cornstarch + 1/2 cup of water). Add in food coloring to your water, but that's totally optional and your preference. Stir to combine and like magic: the oobleck will form before your eyes.

Does oobleck go bad? ›

If you keep the oobleck for more than a day, it will start to go bad and will not be able to retain the properties that it has. In order to dispose of the oobleck, all you have to do is let it dry properly by keeping it aside overnight. Then you can smash the oobleck with a spoon and throw it away easily.

How to make oobleck sensory play? ›

Instructions:
  1. Add 2 cups of corn flour to 1 cup of water to a bowl. Mix the corn flour and water until your oobleck is formed.
  2. If the mixture is too watery and not forming into a solid when you pull the oobleck out of your bowl then add more corn flour. If you find the mixture is not liquid, add a little more water.

What is oobleck sensory? ›

Oobleck is a completely mesmerizing material for kids to touch and play with. Since it's just cornstarch and water (plus any color you want to add), it's super easy and inexpensive to make. It's also taste safe and non toxic, making it a great sensory play material for babies and toddlers.

Is oobleck safe for kids? ›

Oobleck is taste safe – since it's just corn starch and water, but still keep a close eye on baby during this activity. This easy baby sensory activity was perfect for my baby (and for me).

What is the perfect ratio for oobleck? ›

To get measure out the ingredients for oobleck, we recommend starting with 1.5 tablespoons of corn starch and 1 tablespoon of water. The ratio should be able 1.5-2 parts corn starch to one part water. Mix well, stirring all the corn starch into the water. As you stir, explore what this new substance is doing.

What causes oobleck to harden? ›

When cornstarch mixes with water, the starch does not dissolve, but remains in suspension. Move the mixture slowly, and the particles slide past each other. Move it quickly, and the particles tangle with each other so that the mixture hardens.

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