Have you ever tried making oobleck with your kids? If not, you’re definitely missing out on some good old-fashioned fun. This “slime” is so amazing because if you hit it hard with your hands, it feels like a solid; but if you sink your hands into it slowly, it feels like a slimy liquid. And since it’s made in mere minutes with only 3 ingredients, you should try this ASAP. We guarantee your kids will thank you. Dave Hax shows us how this simple goo is made and how it works: