Purdue University
Purdue University: 3 D Earth Structure Model
Take a journey to the center of the Earth and learn about the structure, material properties, and conditions inside our planet.
US Geological Survey
Usgs: The Interior of the Earth
This site provides a detailed discussion of the Earth's interior. Facts about the crust, mantle, and core are given along with diagrams of each. Also presents a table that lists the thickness and types of rock found in each part of the...