We very rarely ever pick up fast food but once in a while I’ll get a craving for tots that cannot be resisted. So our last trip I was very pleased to find in my sons WACKY PACK this handy little science slider that explains how things work, with TECHNICAL ILLUSTRATIONS even!!

Update: Ed Schlittenhardt, associate art director at C3, got in touch to take much deserved credit for the artwork above. Great work, Ed!