People rely on rocks and minerals for many things. From the very core of Earth itself to the tops of the tallest mountains, and from the smallest grains of sand to the biggest boulders, rocks and minerals are the building blocks of our world. This deep-digging set explores minerals, different types of rocks, and the rock cycle with age-appropriate language that makes complex topics easy to understand for young readers. Features include: Supports the Next Generation Science Standards by introducing readers to concepts such as Earth's systems. Graphic organizers that aid in reader comprehension. Fact boxes provide readers with interesting additional information.