Soil is a mixture of mineral and organic material at the surface of the earth that serves as a natural medium for growing plants.


The five factors that control the formation of soils are:


  • Climate

  • Organisms

  • Topography

  • Parent Material

  • Time


The Soils section of the contest will be broken up into several categories, including soil properties, soil biology, landforms and parent material, soil maps, and interpretations.  A soil profile will be excavated and available for students to describe horizons, texture, structure, permeability, depth to water table, color, and other features.


Current Year Resources


2021 Soil Guide

"Farming with Soil Life"

Past Year Resources

Soil Health YouTube Video

Soils Resource Team

Peter Whitcomb          US Department of Agriculture

Emily Whalen               University of New Hampshire 



Since 1991, the NH Envirothon has supported student growth and inquiry in Environmental Science, under the direction of the New Hampshire Association of Conservation Districts (NHACD).  


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© 2021 by NHACD.