Oobleck is an ooey gooey slime substance that’s also a terrific classic science project. Learn about non-Newtonian fluids while digging your hands into a neat tactile sensory experience too. Once you learn how to make oobleck, you can give it fun themes like this Snowflake Oobleck. Explore Non-newtonian fluids easily at home or in the classroom with common kitchen supplies.


Snowflake oobleck is a great winter science and science sensory play activity all in one that will keep the kids busy for quite a while! Winter is an excellent time of the year to put a little twist on classic science experiments!


Oobleck is a classic science experiment made from two easy ingredients. Check out Dr. Seuss’s book, Bartholomew And The Oobleck, to go along with your activity. 

Homemade oobleck is a mixture of cornstarch and water. Roughly a 2:1 ratio, but you can tinker with the ratio to find the desired consistency that still maintains the properties of oobleck. Learn how to make oobleck in just a few simple steps

What’s the science of oobleck? Well, it’s solid. No, wait, it’s a liquid! Wait again; it’s both!

It’s 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. Read more about it here.



Snowflake-themed activities are perfect for young kids to explore the winter season! To learn more about snowflakes, check out these YouTube videos about snowflake science. Or, if you want to learn how to draw snowflakes, check out this tutorial.


  • Cornstarch
  • Water
  • Glitter
  • Kid Tweezers (optional)
  • Snowflake ornaments and buttons
  • Cookie sheet (we use the dollar store variety for projects!)
Winter Snowflake Oobleck Sensory Play Science Experiment Set Up Fine MotorPin


  • Mix up one cup of cornstarch and 1/2 cup of water! Pour in some glitter if desired! You can adjust the ratios as needed, but this recipe is a general guideline!
  • Pour and spoon onto a cookie sheet and stick in your snowflakes!
  • Add a pair of tweezers if you like. Tweezers make great science tools and also encourage fine motor skills.

ALSO, MAKE SURE TO CHECK OUT: Salt Crystal Snowflakes Kitchen Science


Oobleck is a fun substance made from a mixture of cornstarch and water. It’s a bit messy too!

Oobleck is called a non-Newtonian fluid. This means it is neither a liquid nor a solid! You can pick up a clump of the substance like a solid and then watch it ooze back into the bowl like a liquid.

Touch the surface lightly, and it will feel firm and solid. If you apply more pressure,  your fingers will sink into it like a liquid.

YOU MIGHT ALSO LIKE: Melting Snowman Chemistry Experiment

Winter Snowflake Oobleck Sensory Play Fine Motor Skills Science ExperimentPin

Give your homemade oobleck a melting snowman theme instead!


For great science anytime, head to the kitchen! A classic oobleck activity is perfect for home science or classroom science. Frugal, quick to make, and fun for kids and adults, oobleck is a must-try science activity.


Click on the photos below to check out all our winter science ideas and STEM all year long.


Printable Winter STEM Pack

Even if you don’t live in a snowy winter climate, there are many ways to explore the season!

WHAT’S INSIDE? You’ll find 250+ Pages of Winter theme projects for science, STEM, and art!

  • 25+ Winter science activities and STEM projects for kids that are easy to set up and fit into the time you have available even if it’s limited! NEW: Observation sheets for activities.
  • Printable winter theme STEM activities that are simple but engaging for home or classroom. Perfect for K-2 and beyond and adaptable to many skill levels.
  • Find simple background science explanations to share with kids while they explore hands-on and playful experiments, projects, and activities! Fun with physics, chemistry, design, engineering, and more!
  • Easy to gather supplies makes these STEM activities ideal when you have limited resources available. Perfect for trying with groups of kids.
  • Engaging winter STEM activities packed with winter theme activities, journal pages, and design process steps! Includes structure-building cards, STEM challenge cards, and screen-free coding activities.
  • Fun snowflake theme STEM, including snowflake cutting templates, snowflake tinker cards, and snowflake science activities, including a snowflake formation cycle!
  • Even more, winter printable sheets include hibernating animals sort, snow weather cycle, 5 senses for winter journal pages, thaumatrope patterns, and fun extras all with a winter theme!


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