Our favorite scientists are back at it and someone’s let them get their hands on weapons.

Is it a liquid? Is it a solid? Can it be both, and how strong is it? These are some of the questions regarding oobleck that The Backyard Scientist and Mark Rober teamed up to answer by putting it through extreme experiments.

It turns out oobleck is a mixture of cornstarch and water, a cool substance every person has made at some point in life. It’s universally referred to as a non-Newtonian fluid because it can behave like a liquid or a solid depending on the amount of pressure applied to it. For instance, grab it gently with your hands and it will flow between your fingers, but punch it forcefully and it will form a solid ball.

So the duo decided to examine its strengths by putting it through a series of tests while capturing every moment in a very cool slow motion video. When cut with a chainsaw, it somehow remained strong like a solid substance. A shot from golf ball propane cannon also made it explode like a solid. However, it didn’t hold up to stop a BB gun shot from passing through it. Similarly, a firecracker scattered it everywhere and made it look like a liquid.

As always, even the silliest of experiments in relation to simple substances can teach us a whole lot of very cool things we by no means would have known otherwise. What do you think of oobleck? Hit our comments section and let us know.