STC™ Program - Science and Technology Concepts STC BOOKS™ are colorful 64-page readers with research-based science content, giving teachers an ideal way to integrate science instruction during guided, independent, or take-home reading. Teachers use STC™ science curriculum materials to enhance elementary classrooms, increase student test scores, and meet national and state educational standards.

Grades 3-4. The stories in Rocks and Minerals introduce students to geology-the scientific study of the origin, history, and structure of the earth. Students read about different kinds of rocks, and about how and why those rocks formed. They meet scientists who study rocks and minerals, and learn about their scientific tools. They also read about the uses of rocks and minerals through history, including a story about a stonemason who selects and works with stone to create beautiful, lasting monuments and buildings. Young readers visit interesting rock formations on earth, such as the breathtaking Grand Canyon of the Colorado River in the American Southwest. Other stories describe magnificent structures created from rock in ancient times (the pyramids of Egypt and Mexico) and more recently (Mount Rushmore and the National Museum of the American Indian).