Earth is constantly changing. Wind, water, and even humans change Earth's surface. The land is broken down and worn away by erosion. Introduce students to weathering and erosion with this Spanish science reader that features easy-to-read text. Nonfiction text features include a glossary, index, and detailed images to facilitate close reading and help students connect back to the text. Aligned to state and national standards, the book also includes a fun and engaging science experiment to develop critical thinking and help students practice what they have learned.