Natural Phenomena introduces readers to six of Earth's most fascinating occurences. Each book explores the cause of the phenomenon as well as the ways humans have interacted with it, both now and in the past. With its dual focus on science and culture, this series is sure to please nature lovers and budding scientists alike. Explains what causes the northern lights. Beautiful photos, fact-filled text, and helpful infographics help readers learn all about the science behind this phenomenon as well as ways that people study or protect it. AGES: 8 to 11 SELLING POINTS: * Table of contents * Glossary * Index * Additional resource lists * Quiz questions * "That's Amazing!" special feature Hardcover Reinforced Library Binding.