"This volume contains a comprehensive, worldwide history of seismological studies of the Earth's crust using controlled sources from 1850 to 2005. Essentially a

Explore Earth's layers from the crust down to the inner core. Learn about tectonic plates, convection currents, Earth's magnetic field, and more. Additional fea

Explores how scientists study the inner workings of the earth using such tools as global positioning, seismology, and computer modeling.

Examines geologic rocks and rocks structures, such as natural bridges, stone pillars, mountains and volcanoes, and their origins.