All aspects of soil and its components are reviewed here.  Your class will learn how certain organisms help the quality of the earth and support growth.  Different ways to enhance the chemical make-up are described and will be...

From types of rocks to types of weathering, learners gain knowledge on minerals, composition of soil, and the effects of weathering on Earth.

This lesson will describe how human activity can impact a natural ecosystem. It is 3 of 4 in the series titled "Human Activity."

This lesson will describe how human activity can impact a natural ecosystem. It is 4 of 4 in the series titled "Human Activity."