Children have a knack of asking great questions: Why is the sea salty? How far away is space? Why did dinosaurs go extinct and not other animals? What is global warming? But how are we supposed to answer their questions when most of us have only a sketchy grasp of the detail?

Imagine if we could turn to a leading expert and ask them to answer in simple terms. This book does just that: over 120 real questions from children aged five to twelve, answered by some of our best-loved and our most knowledgeable experts. From Richard Dawkins on whether we're all related, to Bear Grylls on whether it's OK to eat a worm, "Big Questions" brings together a huge range of talent to inform and illuminate us in a way that even a child could understand.

In aid of the NSPCC (registered charity number 216401)