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Soil can be examined both as natural formations and as a medium facilitating chemical and biochemical processes, transporting water, dissolved substances, and heat while supporting plant development. Washington State University's location offers exceptional opportunities for studying soils in their natural state. Graduate studies typically focus on specialized areas such as soil physics, chemistry, biology, mineral composition, landform relationships, or fertility characteristics. Active research projects involving graduate students encompass diverse topics including: water movement in unsaturated soils, plant-soil interactions, mineral stability and heavy metal regulation, nutrient cycling in agricultural systems, pesticide and foreign chemical behavior, microbial ecosystems, genetically modified microorganism impacts, plant toxicity and residue handling, conservation tillage practices, soil fertility and nutrient management, land use planning based on soil properties, reference soil studies, and recycling of agricultural and urban waste materials.