Slime is taking the world by storm, but have you tried making Oobleck slime? This cool, chemical-free recipe makes a non-Newtonian fluid that you can pick up in a ball but will run through your hand, that is hard when you hit it but soft when you stroke it, and it's super cheap to make too. It's a fun, rainy-day activity, a cool anti-stress toy, and a science project rolled into one!