Kids learn about the major rivers of the United States including the Mississippi, Missouri, Rio Grande, Colorado, and the Hudson. Geography of the US.

See how the Great Rift Valley and Lake Malawi dominate Malawi's geography. Read about the climate, terrain, and population density. Information is from the U.S. State Dept. Background Notes.

A brief but thorough description of the physical environment of Bulgaria including its terrain, bodies of water, and climate. Information is from the U.S. State Dept. Background Notes.