Layers Of The Earth( Series - The Restless Earth )

The unique characteristics and processes in the Earth's layers make them a vital part of the planet. The solid inner core provides much of the heat to fuel volcanoes and earthquakes. The outer core generates a magnetic field that protects the planet from harmful particles in space. Learn how scientists use modern tools like seismology, geodesy, computer modeling, and global position systems to study the workings of the inner Earth.