Soil

Worm Vue Wonders™

Peek into the underground world of earthworms and discover their earth-saving secrets! See how they turn waste into soil and dig tunnels to create drainage for plants. Perform experiments to demonstrate how worms live and work underground. Have fun ... More.

Soil Classes

The separates alone are only the beginning of soil textural study, since they are not found pure in nature, but are always mixed. It is the natural mixture found in the field and known as soil classes – the sands, the loams, and the clays – ... More.

Practice Land Judging I – DVD

Viewers are presented with two fields (both with pits and one with an overhead water problem) for evaluation of soil textures, permeability, slope, soil depth, erosion, and surface run-off. Viewers can also determine major factors, assign land capab... More.

Practice Land Judging II – DVD

Additional practice for viewers wishing to further hone their land judging skills is provided. Two plots of land are presented (both with pits and one with a soil pH of 5.2) and evaluated for surface textures, permeability, slope, soil depth, erosion, a... More.

Topsoil Tour

Get your hands dirty! The Topsoil Tour is an exciting investigation into the physical and chemical properties of soil. Each person on the Topsoil Tour completes seven units while conducting his or her own soil tests for soil texture, pH, nitrogen, phosp... More.

Biology and Chemistry of Soil Experiment Kit

Using ordinary soil samples and simple, easy-to-follow techniques and staining procedures, identify the type and variety of microorganisms; calculate soil fertility by a cation exchange capacity elimination; test and determine its pH; and correl... More.

Introduction to Land Judging – DVD

Covers the basics and benefits of land judging and elements of the competition. Also covers contest scoring procedures. Includes supplement. 43 minutes. Copyright 2000. More.