Sally M. Walker 
Studying Soil [EPUB ebook] 

Audisee(R) e Books with Audio combine professional narration and text highlighting for an engaging read aloud experience! Soil can be found almost everywhere on Earth. Sand is a soft soil that is found in deserts. Loam is soil that is great for growing plants. But how are these types of soils different? And how are they made? Explore the amazing world of soil in this book.