Earth science and the environment

Earth material and time

Minerals

Rocks

Geologic time: a story in the rocks

Geologic resources

Internal processes

The active earth: plate tectonics

Earthquakes and the earth's structure

Volcanoes and plutons Mountains

Surface processes Weathering, soil and erosion

Fresh water: streams, lakes, ground water, and wetlands

Water resources

Glaciers and ice ages

Desert and wind

The oceans

Ocean basins

Oceans and coastlines

The atmosphere

The Atmosphere

Energy balance in the atmosphere

Moisture, clouds, and weather

Climate

Climate change

Astronomy

Motions in the heavens

Planets and their moons

Stars, space, and galaxies.