Where does California's water come from? How is it used? Why is it important to conserve water? This text teaches students the answers to these important questions, and uses primary sources to simplify this complex topic and make it interesting to students. This nonfiction book builds students' reading skills and social studies content knowledge. The intriguing primary source maps, letters, documents, and images provide authentic nonfiction reading materials and keep students interested in learning. Text features include a glossary, index, captions, sidebars, and table of contents. This book connects to California state studies standards and the NCSS/C3 Framework and features appropriately leveled text to meet the needs of students reading at different levels. Additional features include Read and Respond and a culminating activity that prompt students to dive deeper into the text for additional reading and learning.