Dig into the world of geology with the Rock On! series! Super Soils introduces readers to what makes up soil, from humus and plants and animals to water and air. Chapters discuss how weathering, erosion, parent material, decay, bacteria, organic matter, climate, and time contribute to soil formation. Soil engineering comes to life with a real-world example, the Leaning Tower of Pisa. Easy-to-read text and helpful diagrams break down complex concepts, such as soil horizons. Readers will also learn about composting and the importance of conservation of this vital natural resource. And, an at-home experiment provides the opportunity for hands-on experience. Full-color photographs, glossary words in bold, an index, and phonetic spellings for those hard-to-pronounce geologic terms enhance and supplement the text. Checkerboard Library is an imprint of ABDO Publishing Company.