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Go underground into the living world of soil. Explore how soil is part of out life–the food we eat, the air we breathe, the water we drink, the houses we live in , and how it even helps to control our climate and protect our rivers and streams. Find out how a soil becomes a soil, why some soils are good for growing things and other are not, why you can pour sand but not clay. Then, take an around-the-world trip and dig into dry soils, wet soils, deep soils, and even frozen soils. Along the way, meet the scientists who work with soil every day. And find out why they think soil is so much fun.