YouTube star Mark Rober is Bill Nye the Science Guy for this generation! Now he takes kids behind the scenes to discover the science secrets behind his coolest and most popular stunts and videos.Take a look behind the scenes at Mark Rober's most popular YouTube videos in this page-turning nonfiction book. Can you swim in a pool of JELL-O? Can a shark smell a drop of blood in water? Would you sink or float in a pool of Orbeez? Readers will learn all about the secret science behind Mark Rober's epic viral videos in this book that's jammed with pictures, stats, and fun facts!