GRAND RAPIDS, Mich. — A non-Newtonian fluid -- is it a solid or is it a liquid? It actually acts like both and called oobleck! We will learn all about viscosity and pressure while making some oobleck!

If it's been a while since you've been to a fifth-grade science fair, then you probably don't know about oobleck. Oobleck, which was named after the magic substance in a famous Dr. Seuss book, is what ...