Made of snow, ice, and rocks, avalanches can start in a variety of ways, including by people. Readers will explore the causes and effects of different kinds of avalanches through fact-filled and accessible content. Real-life photographs will engage readers while reinforcing the science concepts behind examples of modern, devastating avalanches. Enhanced by interesting fact boxes and timelines of real avalanches, readers will be guided through safety and disaster relief so they'll be able to act if caught out in the cold when the snow starts to fall.