Color Mixing Oobleck Sensory Bag

We love oobleck, but sometimes we’re not in the mood for messy play. Placing the oobleck in a sensory bag allows you to experience all of the the squishy goodness of oobleck without the cleanup.

Color Mixing Oobleck Sensory Bag

Color Mixing Oobleck Sensory Bag

Supplies You’ll Need:

  • cornstarch
  • water
  • freezer bags (we used the gallon size)
  • mixing bowl
  • measuring spoons/cups
  • liquid watercolors or food coloring
  • objects to add to the bag (flat buttons, pom poms, etc.)

In a bowl, we mixed together cornstarch and water. We started with 3 tablespoons of cornstarch and added 3 tablespoons of water. Our mixture was a little too runny, so we added another tablespoon of cornstarch. To get the amount of oobleck we wanted for our gallon size freezer bag, we made two more batches mixing equal parts cornstarch and water and adding extra cornstarch if needed. In total we used 11 tablespoons of cornstarch and 9 tablespoons of water. This is 2/3 cup of cornstarch and about a 1/2 cup of water. Adding a touch more water will make your sensory bag a little easier to squish.

oobleck sensory bag

After adding the oobleck to the freezer bag, seal the bag tightly removing as much air as possible. This oobleck sensory bag is great without any additional objects or colors. There are these cool bubbles that form in the oobleck. Squish them and push them around.

oobleck sensory bag

Adding color and other things can add to the sensory experience. I added blue liquid watercolors to one side of the bag and red liquid watercolors to the other side of the bag. I also added some colorful flower buttons. Seal the bag tightly and remove as much air as possible.

color mixing oobleck

Squish around the oobleck. Try to mix the red and blue colors. What color will the oobleck become?

oobleck sensory bag3

Can you find the buttons?

button in oobleck

Pick up the whole bag and squish it. (This is where using thick freezer bags helps. Thinner bags may rip open.)

oobleck sensory bag

It’s such a fun sensory experience.

More Oobleck Ideas

Be sure to subscribe to our weekly newsletter and get exclusive science explorations for young scientists in each issue.


Leave a Reply

Your email address will not be published. Required fields are marked *