Curated OER
Soil Characteristics
Components of soil, such as inorganic or organic materials are detailed along with the main contributions of each. Deposits, weathering, and distinct types of characteristics and properties of soil classes are given.
PBS
Pbs Learning Media: Farming the Desert: Geography of the Sahel
This lesson is provided to introduce students to the geography and people of the Sahel region and to have them discover the challenges and conflicts faced by the inhabitants. They learn about desertification and what farmers are doing to...