Learn how scientists study some of the most extreme weather on Earth. Most days, you probably don't think too much about the weather. You might wear a coat on a cold day or carry an umbrella when it rains. But weather can be unpredictable. Downpours can flood entire cities, raging winds can knock down buildings, and huge piles of snow can block roads. Readers (Grades 3-5) will find out how scientists study some of the most extreme weather on Earth, from violent tornadoes to deadly hailstorms. They will also learn about some of the most devastating weather events in history.