Why does your skin turn red and peel when you get a sunburn? In this episode of Gross Science, Anna Rothschild explains what’s going on in our skin when it burns from sun exposure. Follow this video up with The Science of Skin Color, How the Sun Sees You: Revealing human skin in ultraviolet light, and How do wounds heal & how do scars form? This Webby award-winning video collection exists to help teachers, librarians, and families spark kid wonder and curiosity. TKSST features smarter, more meaningful content than what's usually served up by YouTube's algorithms, and amplifies the creators who make that content. Curated, kid-friendly, independently-published. Support this mission by becoming a sustaining member today.