From samurai warriors to mobile phones, turn and learn with every page. Did you know that Spanish is the second most spoken language? That some insects sing to each other? Or that light is the fastest thing in the Universe? Discover amazing things - find out why the sea is salty, what flower stinks of rotting meat, and how to make a rainbow - then test yourself with curiosity quizzes. Small enough to pop in your schoolbag, it`s perfect for projects or just for fun!