Soils From the Surface Down Guide: This guide introduces soil surveys for agronomic use, and discusses soil horizons, how soil is formed, soil properties, and management information Drainage Classes in Maryland : This guide illustrates what characteristics different soil drainage classes will exhibit. Guide for Estimating Soil Texture by Feel : This guide provides step by step instructions on how to use texture to illuminate the characteristic features of soils with different percent sand, silt, and clay. How To Use a Clinometer : This guide helps students properly use a clinometer for measuring slope in the field. Soil Scorecard Guidance Info : This guide explains what type of questions will be on the exam. Soil Study Guide- Revised 2017 This guide gives an overview of all soils including horizons, soil formation, agricultural best management practices, and more.