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Learn how to do Oobleck there is no cornstarch in 5 minutes! A fun science experiment for children to introduce an easy concepts about fluids like liquid and solid and also have the most fun sensory play activity.

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What’s oobleck?

Oobleck is scientifically recognized as a non-Newtonian fluid. Let me explain.

Ask yourself, is Oobleck heavy or liquid? Well, it’s no one of the above. It’s, in fact, both in ~ the same time! This is what we call a non-Newtonian fluid.

It simply method that this material acts like a liquid when you don’t apply pressure top top it, like as soon as holding it in your hands.

But, it hardens and acts like a solid if press is applied to it. If you press it v your fingers or hands, it’s difficult and challenging to grab.

In fact, if you make enough of it, you can run on it without acquiring your feet dirty or wet! If you were to stop running, though, you’d sink!

How do you make Oobleck?

Before i share the alternative to make oobleck there is no corn starch, permit me share with you the basic instructions to make classic oobleck in ~ home.

Oobleck ingredients

The classic recipe is made through a mix of:

1 1/2 cup the cornstarch or cornflour – both work-related with the same amount. This describes the regular corn starch from the baking aisle of her grocery store, naught fancy.1 cup waterDrops the food coloring if you choose – optional, simply for fun!

Then, mix the cornstarch through cold madness water and include your food colour (if used).

Mix by hand till the mixture that cornstarch starts come harden once squished yet drips prefer honey once you relax the pressure.

But if you’re out of cornstarch in ~ home, girlfriend are probably wondering i m sorry flour can be used to change the cornstarch to make Oobleck.

Oobleck fun!

We made ours Oobleck with arrowroot flour and also made an Oobleck swimming pool in a large plastic container. Since Halloween is comes up, us made spooky oobleck by including plastic googly eyes to the mixture.

Cornstarch swaps

There space actually three other flours that occupational really fine to make oobleck. However, due to the fact that these flours have different properties 보다 cornstarch, the flour to water ratio is different.

Read my just how to do oobleck there is no cornstarch instructions listed below to make sure your oobleck comes the end great.

Arrowroot FlourTapioca Flour likewise called tapioca powderPotato Starch

The first two flours job-related with the very same ratio. You may have to readjust the ratio for potato starch.

Can i make Oobleck through all-purpose flour?

Unfortunately, friend can’t make Oobleck through wheat flour.

You absolutely need starchy flour, choose arrowroot flour, corn starch, cornflour, or potato starch.

Oobleck frequently Asked Questions

Sometimes Oobleck doesn’t come out as you expect, but the an excellent news is the you can constantly fix Oobleck!

And also if it end up choose Oobleck-slime since you added too lot water, kids still have fun through it.

Can ns save difficult Oobleck?

You can always save a too-hard Oobleck by adding much more cold water. Always add water 1 tablespoon in ~ a time to avoid a rapid dilution that the Oobleck recipe.

What to carry out if mine Oobleck is too liquid?

To save a watery Oobleck texture, simply add much more of your starchy flour. Include it progressively as the texture deserve to change very quickly.

However, friend can additionally make Oobleck-slime by adding much more water to the mixture. It’s not quite the same, yet it’s simply as fun!

Is Oobleck edible?

No, friend can’t eat oobleck. Cornstarch or any type of starchy flour room not edible raw flours. Raw cornstarch leader to anemia and other wellness issues.

Make sure you beat oobleck v your kids and don’t let them eat this.

Can you do Oobleck through baking soda?

You can’t make oobleck with only baking soda. You will have to use some starch or baking flour – i beg your pardon is usually baking soda and also cream that tartar.

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More sensory play activities to try

Check out our various other sensory tasks for much more fun.