Our Earth: The Air We Breathe

Learn all about Earth’s atmosphere in a guide full of dramatic examples of air – lifting up hot-air balloons, blowing windsurfers along, and turning the sky blue! Using bright photographs and plenty of fascinating facts, this book shows readers what air is made of, how it behaves, how much it weighs and why we need it to live. Discover thermals, smog, altitude sickness and other interesting air-related topics as you explore the physical aspects of Earth. This colourful book includes two fun activities: making a parachute and weighing air with balloons.