To make oobleck, you need just two main ingredients: cornstarch and water. Here is a simple step-by-step method:
- Measure 2 cups of cornstarch and put it into a mixing bowl.
- In a separate container, measure 1 cup of water. Optionally, add 5 to 6 drops of food coloring to the water for color.
- Slowly pour the water into the cornstarch while stirring.
- Mix the ingredients thoroughly using a spoon or your hands. The mixture should become thick and gooey.
- If the mixture is too runny, add more cornstarch a little at a time. If it is too dry or crumbly, add a few drops of water until you reach the desired consistency.
- The final oobleck should feel solid when you apply pressure but flow like a liquid when you handle it gently.
Oobleck is a non-Newtonian fluid that behaves like a solid under sudden force and like a liquid when at rest or stirred slowly
. It’s a fun and safe sensory activity for kids and adults alike. Cleanup tip: Oobleck can be messy, so it’s best to play with it on a covered surface or outdoors. To clean, scrape up the dried mixture and wipe surfaces with a damp cloth
. This basic recipe is easy to customize by adjusting the cornstarch-to-water ratio or adding food coloring for visual effect
