Do you want to find out weird-but-true facts like how to safely enter a black hole or what to do if you meet a mythological monster? Interested in hitting a dizzying ping-pong trick shot or performing mind-blowing magic that'll amaze your friends? Think it'd be fun to make the ultimate paper airplane or an insane water balloon launcher? If you answered yes to any of these questions, you've come to the right book! The editors of Popular Mechanics put together this incredible, super-cool collection of did-you-know facts, super-fun projects and astounding skills for curious kids who like to discover stuff, build things, goof around a lot -- and sometimes make a big mess in the process. (Don't tell your parents that last part!).