“Why is there sticky stuff ?” We often think that sticky is icky, but Zoey finds out that nature and technology use stickiness in all sorts of useful ways. We learn what ancient humans used for glue, surprising things that stick, what makes things sticky, salamanders sticky tongues, why spiders don’t stick to their webs, how geckos stick to walls, how magnets work, making glue, why composite materials and glue are used to build airplanes, why snot is sticky, and the story of Velcro.