Want to blow your kids’ minds with science you can play with? Oobleck is the ultimate DIY activity—it’s not quite a liquid, not quite a solid, and totally magical to touch. Whether you’re doing a science experiment or just want some hands-on fun, this simple oobleck recipe is a guaranteed hit.
Made with just two ingredients, it’s safe, non-toxic, and ridiculously satisfying to squish, squeeze, and watch drip through your fingers!
Why You’ll Love This Recipe
✅ Just 2 Ingredients – Cornstarch + water = endless fun
✅ Weirdly Addictive – Solid when you squeeze it, liquid when you don’t!
✅ Easy Clean-Up – Messy, but wipes up easily with warm water
✅ Great for Kids – A sensory activity + science lesson in one
🧪 Ingredients (Makes 1 Bowl)
- 1 cup cornstarch
- ½ cup water (add slowly to adjust consistency)
- Optional: food coloring for fun colors
🥄 How to Make Oobleck
Step 1: Add the Cornstarch
Pour 1 cup of cornstarch into a mixing bowl. If you’re adding food coloring, stir it into the water first!
Step 2: Mix in the Water
Slowly pour about ½ cup of water into the cornstarch, stirring as you go. It may feel stiff at first—keep mixing until it reaches the right consistency.
💡 Pro Tip: If it feels too runny, add a bit more cornstarch. Too dry? Add a little more water.
Step 3: Play!
Once the texture is just right, get your hands in there! Try:
✔️ Squeezing it into a ball—then watch it melt
✔️ Tapping it fast—it feels hard!
✔️ Letting it ooze through your fingers
💡 Clean-Up & Storage Tips
✔️ Don’t pour oobleck down the drain—it can clog pipes. Toss it in the trash instead.
✔️ Store in an airtight container for 1–2 days, but it’s best fresh!
✔️ Add warm water if it starts to dry out.
🔬 What’s the Science Behind It?
Oobleck is a non-Newtonian fluid, which means its viscosity (how it flows) changes under pressure. Squeeze it and it behaves like a solid. Let go and it drips like a liquid. Science has never been so fun!
💖 Final Thoughts: Squishy Science for All Ages
Whether you’re hosting a playdate, homeschooling, or just want a fun rainy-day activity, oobleck is a messy masterpiece. It’s weird, it’s wonderful, and it’s the kind of DIY fun that gets everyone’s hands (and smiles) in the mix!
