Colored oobleck is one of the coolest and easiest science and sensory recipes you will ever make! Colorful art and science! Make colored oobleck any time. We have a whole colorful rainbow collection so far this season! Plus we love fun science, and oobleck is definitely fun science! Here’s how to make colored oobleck for simple science, art, and sensory play! Also great for a STEAM lesson plan.

How To Make Easy Colored Oobleck

How To Make Colored oobleck Science Art sensory Play

Colored Oobleck Science 

Oobleck is usually a mixture of cornstarch and water. Roughly a 2:1 ratio but you can tinker with the ratio to find a desired consistency that still maintains the properties of oobleck. What’s the science of oobleck? Well, it’s a solid. No wait it’s a liquid! Wait again, it’s both! Very fascinating to be exact. Pick up solid chunks, pack it into a ball and watch it ooze into a liquid. This is called a non-newtonian liquid, a substance that acts like both a liquid and a solid. It’s fun just plain white but why not mix up a batch of colored oobleck too.

Supplies Needed for Easy Colored Oobleck

Cornstarch, Water, Food Coloring, 6 Bowls and Spoons, and Cookie Sheet

Mixing colored Oobleck

For this colored oobleck activity, I made mini batches of oobleck. I put about 1/3 cup of cornstarch into each container. I mixed almost a 1/4 cup of water with the different colors. Next I added the water to the cornstarch and mixed. I repeated this for all 6 colors of the rainbow to make our colored oobleck. You can always make whatever colors you like!

Rainbow Oobleck Science Activity Art Play STEAM Sensory Play Colored Cornstarch

I emptied each of the colored ooblecks onto the cookie sheet. I love how each of the different colored obelisk began to blend together. He used spoons to spoon up small amount of colored oobleck. It began to look like he was painting with the colored oobleck!

Rainbow Oobleck Flowing Off Spoon

He also used a skewer to move around the different colors.

He had an awesome time with this science sensory play activity and was so excited that he was painting with the colored oobleck.


Rainbow Oobleck Science Art Painting Mixing Colors

Of course, this easy colored oobleck is awesome messy science play! There’s plenty of time for great messy sensory play with this colorful oobleck. He mixed and scooped until it was no longer a rainbow of colors. All the while he was talking about liquids and solids. He also let me know this time that it was a non-newtonian fluid, so he is listening!

Rainbow Oobleck Science Mixing Colors Sensory Play Messy Play

 Science can be simple and fun with cool, hands-on learning activities.

Colored oobleck is awesome any time and great for days when you are stuck inside. 

Awesome Easy Colored Oobleck Sensory Play!

This science sensory play recipe is quick and fast. You probably have all the ingredients you need in your kitchen cupboard. Kitchen science is the best. Use what you have and enjoy playful learning at home or at school. Play with colors!


Rainbow Science Math Activities St Patricks Day


Best Kids Science Experiments for Year of Science Activities




99 Fine Motor Ideas banner