An innovative and fun guessing game book about sports balls and the physics behind how they move! In this one-of-a-kind informational picture book, cleverly tongue-twisting descriptions introduce twelve different types of sports balls, and readers are encouraged to guess what they are. An accompanying block of kid-friendly text explains the science behind why balls do what they do and what makes them so much fun! This book is the perfect combination of an interesting topic, fascinating science and engaging text. Silly and sporty, and great fun to read aloud, it’s sure to leave kids bowled over!