These 36 half-hour lectures are your initiation into the geological world that lies just outside your door. "The Nature of Earth: An Introduction to Geology" introduces you to physical geology, the study of Earth's minerals, rocks, soils, and the processes that operate on them through time.

Examines major sea-floor features: the oceanic ridge, oceanic trenches, and fracture zones, evidence of the mobile crust of the earth.

Interprets the causative factors of metaphormism and the kinds of rocks produced.

Shows how major mountain belts and continents have evolved.

Covers the origins, classifications and uses of minerals.

Course covers the making of our planet from the Big Bang, to the formation of the solar system, to the subsequent evolution of Earth. Travel to the center of our planet and out again, charting the geologic forces that churn beneath our feet to push the continents and seafloor.

Explains how groundwater is distributed and measures its importance to human life.

An educational program about Earth's geology, introduces a number of geologic concepts including : basin & range, continental crust, crustal spread, earthquakes, erosion, exotic terrain, geologic time, glaciers, granite batholiths, MOHO, pillow lava, plate tectonics, rifts, subduction zones, volcanic activity, and xenoliths.

Two billion years in the making, Arizona's landscape is recognized worldwide. The Grand Canyon, Monument Valley, Kartchner Caverns ? the diversity of natural forces that created these wonders are unique to our state. Forged by fire, submerged in water and buried by earth, the stories are not found on the surface. These stories are under Arizona. In this Arizona Collection special, Eight takes viewers on a visually stunning trip. Our cameras capture...