Understanding Cycles and Systems

"'Understanding Cycles and Systems' explores the constant processes that surround us. You will learn about everything from the movement of rocks to the changing forms of water. You will discover how invisible elements and the Sun's energy are the keys to all living things. You will also find out how all Earth's processes connect and work together. So, come on a fantastic journey into the world of cycles and systems! Sci-Hi is an engaging, comprehensive, and visually stimulating series that takes learning science core curriculum to a whole new level."