National Geographic Readers: Weather Description What causes thunder and lightning? How do different clouds form? What makes a tornado twist? Kids will discover the answers to these questions and more in this colorful, photo-packed book. In this inviting and entertaining format, kids will discover what causes the weather they experience every day. This level 1 reader is written in an easy-to-grasp style to encourage the meteorologists of tomorrow! Read more Features: Product Details: Publisher ‏ : ‎ National Geographic Kids; Illustrated edition (July 9, 2013) Language ‏ : ‎ English Paperback ‏ : ‎ 32 pages ISBN-10 ‏ : ‎ 1426313489 ISBN-13 ‏ : ‎ 86 Reading age ‏ : ‎ 3 - 6 years, from customers Lexile measure ‏ : ‎ 450L Grade level ‏ : ‎ Preschool - Kindergarten Item Weight ‏ : ‎ 3 ounces Dimensions ‏ : ‎ 5.99 x 0.11 x 8.99 inches