Kids will love making goo (also known as goop, oobleck or cornflour slime) with this easy recipe. It’s an outdoorsy, sciency, messy play idea that’s a lot of fun for kids of all ages. Especially preschoolers! This messy play idea was first published in 2013 and has been updated and reshared for today’s audience. You might also like this sandbox small world play idea Ever made goo before? If not