Our eyes and ears allow us to see and hear the world around us. But how do we see things? How do we hear? This Spanish science reader introduces students to the concepts of sight and sound. With easy-to-read text and detailed, vivid images, this book teaches students important scientific subjects and vocabulary terms. Aligned to state and national standards, the book contains nonfiction text features like an index, a glossary, captions, and bold font to keep students connected to the text. A hands-on science experiment helps students apply what they have learned and develops critical thinking skills.