This NON-EDIBLE recipe is named after the strange material that falls from the sky in Dr. Seuss' book, Bartholomew and the Oobleck. It's a really fun recipe to be used as a science experiment of sorts with young children. -Is it a solid? - Is it a liquid? **It's a liquid until pressure is applied. Hit it hard and it feels like you are hitting a wall! Touch it gently and the material will flow around your fingers like water! **Have fun using different utensils to play- see what form it takes while using different cups, spoons, bowls, etc. HAPPY PLAYING!