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Friends Art Lab / Blog / Lemon Oobleck Sensory Play

Lemon Oobleck Sensory Play

Author: Kristian Klebofski    Published: 02/10/2023     Updated: 02/14/2025

Lemon oobleck is what sensory play dreams are made of. We’re kicking regular oobleck up a notch by adding some of our favorite citrus fruits!

A purple tray sits on a table and is filled with lemon oobleck and lemon slices. A jar of water, a small jar of coloring, a lemon half, and a box of cornstarch sit next to the tray.
Table of Contents:
  1. There’s nothing not to love about lemon oobleck
  2. When life gives you lemons, make lemon oobleck
  3. Materials
  4. How to make lemon oobleck
  5. How to clean lemon oobleck
  6. What is the difference between oobleck and slime?
  7. What can I add to lemon oobleck to extend play? 🍋
  8. If you haven’t made lemon oobleck before, “bitter” late than never!
  9. FAQ

There’s nothing not to love about lemon oobleck

Even if you’ve made oobleck before, this just hits differently.

It’s like water. Plain water is fine. But water with lemon? Fancy! Sophisticated! She is beauty, she is grace.

In a world of water, be lemon water. The first step to navigating life in the high society is transforming your regular oobleck into sensory heaven!

🍋 Related: You have to try lemon and watercolor science while you’re playing with lemons!

A hand holds lemon slices stacked together and covered with lemon oobleck. It is held above a purple tray filled with lemon oobleck.

When life gives you lemons, make lemon oobleck

You might have heard our joke before about how we ask prospective preschool families if they have lemon trees at home.

If so, the spot is theirs! (While we’re kidding, we do have many people who bring us lemons and we always put them to the best use.)

Over the years, we’ve been gifted hundreds of lemons and we never run out of activities to do with them. Lemon oobleck is in the regular rotation because it’s beyond easy to set up and kids are always delighted to play with it.

🍋 Looking for more lemon activities? These are simply the “zest!”

  • Lemon Volcanoes
  • Lemon and Watercolor Science
  • Lemon Stamp Art
  • Colour Changing Lemonade
The materials for the project: lemons, a jar of water, a small jar of coloring, a lemon half, and a box of cornstarch sit inside of a shallow purple tray.

Materials

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  • Lemons
  • Cornstarch
  • Water
  • Yellow coloring – liquid watercolors or food coloring
  • Shallow container – the ones in the photos are discontinued but we love these ones even more
A series of three photos: first cornstarch is dumped into a purple tray, next yellow water is added in and it's mixed, and last the oobleck is made and is oozing through two hands.

How to make lemon oobleck

  1. Slice lemons  – Have an adult cut the lemons into lemon slices.
  2. Mix oobleck – This part is pure fun! Into a shallow container, mix 2 parts cornstarch to 1 part water (ex: 2 cups cornstarch + 1 cup water). Add in yellow coloring (we used liquid watercolors here because the stain is very temporary compared to food dye). You’ll know it’s “done” when it can form into a solid when squeezed tightly but will ooze through your fingers when pressure is released. 
  3. Add in lemons – Let the fun begin! Kids will stack, squeeze, poke, pull, smell, and explore the lemons. This is the good stuff.
An arial view of lemon oobleck in a purple tray with several lemon slices stuck in it.

How to clean lemon oobleck

Sharing our method from our chocolate mud oobleck recipe:

We have two methods for you, the easy way and the easier way

  • Easy Clean-Up Method: Scoop the wet oobleck into a garbage can, and once it’s as clean/scraped out as possible, rinse the container with your hose or in the kitchen sink.
  • Easier Clean-Up Method: Wait for it to dry. Leave the containers outside or on a counter for a day or so, and when you see the mud crack (photo below), pour it all into the garbage. At this point, it’s essentially back to powder so clean-up takes seconds (and it’s virtually mess-free).
A hand holds a lemon slice over the materials for the project.

What is the difference between oobleck and slime?

Ingredients – Oobleck uses taste-safe ingredients, whereas slime is usually made with ingredients like glue, activator, contact solution, etc. Note: while oobleck is made with food, this activity should be supervised as it shouldn’t be eaten (plus, it would be gross!).

Longevity – Slime can usually be stored for long periods, but oobleck is made with food and can mold after an extended period. To make sure that it can last for several days without molding, we leave our oobleck stored for the few days we use it in a container with the lid off.

Both are fun, sensory-based, and exciting!

A hand holds lemon slices spread out and covered with lemon oobleck. It is held above a purple tray filled with lemon oobleck.

What can I add to lemon oobleck to extend play? 🍋

You can find many FREE materials around your home and classroom that elevate this sensory activity!

Some fun ideas include:

  • Tongs
  • Bowls
  • Scoops
  • Cups
  • Plastic berry baskets
  • Strainers
  • Salad spinner baskets
  • Spatulas
  • Plates
A stack of lemon slices is fanned out and sits in a purple tray.

If you haven’t made lemon oobleck before, “bitter” late than never!

Oobleck on its own is a blast, but adding in fresh lemon slices makes it out of this world. It smells UH-MAZING and has abundant layers of sensory learning.

The next time you meet someone with a lemon tree, introduce yourself to your new best friend.

Kristian smiles at the camera and holds a tray with the materials for the experiment.

FAQ

Can you drink oobleck?

No. While the ingredients are taste-safe, oobleck should not be consumed. Adult supervision should be used during this activity.

Can I pour oobleck down my sink drain?

This could block your pipes, so we recommend doing one of the methods we mentioned above.

What age is this recommended for?

Any age that can safely use the materials.

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Lemon Volcanoes – Sizzling Science Experiment
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EXPLORE A CATEGORYScience, Sensory

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  • Two final pieces of lemon stamp. On the table are also fresh lemons and two paper plates with puddles of paint.
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  • A hand squeezes a lemon half above a paper painted with colorful watercolors. Next to the paper sits more watercolors and several lemons cut in half ready for lemon and watercolor science.
    Lemon and Watercolor Science
  • Lemons cut in half are covered in liquid watercolors and bubble from being mixed with baking soda.
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  • Chocolate Oobleck Mud - Taste-Safe Sensory Play

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Kristian

Hi, I’m Kristian!

I have spent over 15 years in the preschool classroom, I have a Master's degree in Early Childhood Education, and I was a college professor of education for eight years. My passion is sharing creative learning activities for children and I'm so happy you're here.

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