Why does it rain? How hot is a bolt of lightning? What makes hurricanes happen? Find out with Eyewitness Weather and become an expert on the skies above us. From giant tornadoes to the smallest of snowflakes, discover all about a wide-range of weather conditions and how they are created. Eyewitness reference books are now more interactive and colourful, with new infographics, statistics, facts and timelines, plus a giant pull-out wall chart, so you'll be an expert on weather in no time. Great for projects or just for fun, learn everything you need to know about weather with Eyewitness.