Acid precipitation will be defined. At different points in the lesson students will write balanced reactions for the formation acid precipitation from atmospheric sulfur and nitrogen oxides and the neutralization of...

Spatial data analysis is an important tool for geographers, planners, sociologists, and others, and this well-designed site by the Center for Geographic Analysis at Harvard University will be a real boon to anyone with...

This radio broadcast discusses the findings of a conservationist who flew over of most of the continent of Africa in a small plane at low altitude, photographing the ground below every 20 seconds, to form a grid map. The...

In this lesson students will describe global spatial patterns of human development using HDI rankings. Students will complete a table of demographic data on selected countries so they can look for connections. Students...

This map viewer lets users access hydrologic data for the State of Colorado, provided by the Colorado Division of Water Resources (CDWR). The map features switchable layers that display rivers, lakes and reservoirs,...