Mohammed Karaji, Edmond Halley, Henry Darcy, and Pelageia Polubarinova-Kochina are some of the most important water scientists highlighted in this nonfiction book. Readers will love the vivid images, easy-to-read text, helpful charts and graphs, and accessible glossary and index. Featuring a captivating hands-on lab activity, this book will leave readers eager and excited to learn more!