Monster Oobleck

Monster Mystery: A Hands-On States of Matter Investigation 👻🧪

Is it a solid? A liquid? Or something in between?

Turn a classic oobleck experiment into a Monster Mystery your kids can actually investigate!

With just a few simple ingredients, kids will make their own monster mystery substance, then predict, test, observe, and discover how it behaves. They’ll explore what happens when they touch it gently, squeeze it quickly, try to pour it, and more—all while learning about solids, liquids, and non-Newtonian fluids.

Perfect for an easy fall or Halloween science activity at home, in a classroom, homeschool, or STEAM center.

Your printable includes: easy setup and directions, states of matter review, guided Wonder Questions, hands-on investigation prompts, and a kid-friendly explanation of the science.

✨ Low prep. Simple supplies. BIG curiosity.

Designed for elementary-aged kids and easy to adapt for younger scientists with adult help.

Just print, make your Monster Mystery, and start investigating!

STEAM & Wonder

Inspire • Explore • Create