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 4-5. Land and Water tells the story of how the earth formed and how it continues to change, imperceptibly but inexorably, through the action of earthquakes and volcanoes, rivers and oceans. It includes stories on the importance of water in our lives, not only for drinking but also how we find it and what happens to our crops when we don’t have enough of it. There is also a story on the aesthetics of water, told through an ancient Chinese painting of a river scene. The final section of this book highlights scientists' investigations of natural phenomena, including a history of weather forecasting.