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SOiL

SOiL

Rocks & Soil

Weathering is the breaking down of rocks, soils and minerals as well as artificial materials through contact with the Earth's atmosphere, biota and waters. Weathering occurs in situ, or "with no movement", and thus should not be confused with erosion, which involves the movement of rocks and minerals by agents such as water, ice, snow, wind, waves and gravity. Two important classifications of weathering processes exist -- physical and chemical weathering; each sometimes involves a biological component. Mechanical or physical weathering involves the breakdown of rocks and soils through direct contact with atmospheric conditions, such as heat, water, ice and pressure. The second classification, chemical weathering, involves the direct effect of atmospheric chemicals or biologically produced chemicals (also known as biological weathering) in the breakdown of rocks, soils and minerals. The materials left over after the rock breaks down combined with organic material creates soil. The mineral content of the soil is determined by the parent material, thus a soil derived from a single rock type can often be deficient in one or more minerals for good fertility, while a soil weathered from a mix of rock types (as in glacial, aeolian or alluvial sediments) often makes more fertile soil. In addition many of Earth's landforms and landscapes are the result of weathering processes combined with erosion and re-deposition.

Videos

SKYROOMLIVE THE SOIL 2D

The Soil -Sunday

The soil is the musical group that does accapella music; and is flexible again with a band and programmed beats. The type of music we do is called kasi soul ...

Preparing the Garden Soil with Organic Amendments

Here I will show you what we use to have a successful vegetable garden. The soil is the life of your garden. The investment will be worth it. We have very he...

Soil - Breaking Me Down

audio only.

Easiest Way to Tell if Your Soil is Healthy in Your Garden

John from http://www.growingyourgreens.com/ shares with you the quickest and easiest way to tell if your soil is healthy. In this episode John will share an ...

The Soil - Inkwenkwezi

The Soil...They are just way too AMAZING..!!!!!

The Importance of Soil

Healthy soil is a foundation for our food system, it purifies the water that we drink, and it's critical in its role in the regulation of greenhouse gasses, ...

How To Differentiate and Identify Soil Horizons In The Field

A video job aid for describing soil horizons using National Cooperative Soil Survey methods and references. Captioning available upon request by e-mailing we...

Soil Stories - The Whole Story

In "Soil Stories", our protagonist, Francine, embarks on a journey of discovery that begins with her realization that soil is alive and that without soil, li...