Curated OER
Climatic Changes
In this climate changes learning exercise, students review the different events such as volcanic eruptions and El Nino that change the climate. This learning exercise has 5 multiple choice and 5 short answer questions.
Curated OER
Educational Technology Clearinghouse: Maps Etc: Rainfall in North America, 1898
A map from 1898 of North America, Central America, Greenland, and the Caribbean to Puerto Rico showing the general distribution of rainfall in the region. The map shows areas of little or no rainfall to areas of heavy rainfall. The map...