Grinch Christmas Oobleck Bin

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In this Grinch Christmas Oobleck bin, a well-known Christmas storybook theme and a favorite sensory activity are paired together.

The goopy sensory bin is inspired by the storybook “How the Grinch Stole Christmas” written and illustrated by Dr. Seuss. The popular picture book features a tall, long-fingered grumpy beast called “The Grinch’ who lives by himself up on a hill above the town of Whoville. Old Grinch absolutely hates Christmas. On Christmas Eve he disguises himself as “Santy Claus” by wearing a makeshift red and white costume. He ties one “reindeer” antler to his faithful dog Max’s head and has him pull a sled down to Whoville. The grouchy Grinch steals all the Whos Christmas decorations, presents, and festive food. He even scoops up the log for the fireplace from each home.

While ready to push the sled full of festive items over the tip of Mt. Crumpit early Christmas morning, the Grinch is surprised by the sound he hates the most…the singing of the Whos standing together holding hands. He realizes he hasn’t stopped Christmas at all. After thinking for a few hours, his heart softens and he decides to return all the Christmas items he took. He joins in the Christmas festivities in Whoville and even carves the “the roast beast”, a food he dislikes a lot.

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To get familiar with or revisit this story, view Book In Bed’s delightful, colorful animated read aloud version: How The Grinch Stole Christmas!

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Supplies Collected

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For the super fun, educational holiday sensory bin, the following supplies were gathered:

cornstarch
water
neon green food coloring
measuring cup
tablespoons
Grinch disposable snack cups
Christmas tree shape container
present shape container
ornament-shaped bells
candy cane ornaments
large tweezers
sensory bin

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Making The Grinch Christmas Oobleck

For this tactile sensory activity, first choose a bin. I use a saucer sled. It’s bright color matches the season, and it is large enough to easily hold the Oobleck and the supplies.

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Next, make the grinchy green Oobleck. Use a tablespoon or your hands to mix two cups of cornstarch with one cup of water. Add a little more water if needed. Then blend in a few drops of neon green food coloring. The goopy mixture is the right consistency if it becomes a ball when you close your hand around it but transforms to a liquid that slowly drops off when you open up your hand.

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The Grinch Christmas Oobleck Bin

This festive sensory bin is well-loved by children and adults.

Start of by inviting particpants to help mix the Oobleck and investigate its properties. They will eagerly accept your invitation!

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Once everyone has had a chance to explore the green goop, add picture book-themed items inspired by the book “How the Grinch Stole Christmas!” to the bin. I include:

a Christmas tree shape container, a clear present shape container, and Grinch disposable snack cups to drop Oobleck into.
festive accessories such as candy cane and ornament-shaped bells.
tablespoons and children’s play tweezers to help explore the Oobleck and pick up supplies in the bin.

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How Oobleck Got Its Name

Way back when I was training to be an early childhood worker, this sensory recipe was introduced as goop. More recently, I’ve discovered that it has been given the name Oobleck. Interestingly, the name is inspired by another Dr. Seuss children’s book titled “Bartholomew and the Oobleck.” The Oobleck in the story is green too!

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The Science Behind Oobleck

Oobleck is a non-Newtonian fluid, so it does not follow Newton’s law of viscosity. This is because depending on the force applied, it changes from a liquid to a solid, or from a solid to a liquid.

In the mixture, cornstarch is suspended in water and does not dissolve. When you apply force such as closing your hand and squeezing a blob of it, it acts like a solid. The cornstarch bits align and interlock under pressure. But when you stop the force by opening your hand, the goop becomes a liquid. The cornstarch bits flow freely off your hand along with the water.

Oobleck is a fascinating sensory material. Making and exploring its properties is a popular science activity, and it’s one of my favorites. Have you tried making Oobleck?