Curated OER
Merriam Webster: Visual Dictionary Online: Section of the Earth's Crust
Labeled diagram of a section of the Earth's crust.
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...
Science Education Resource Center at Carleton College
Serc: Geo Blocks 3 D Interactive 3 D Geologic Blocks
This interactive tutorial on visualizing geologic features contains animated block diagrams that show how the surface expressions of dipping layers, folds, igneous intrusions, and faults are related to subsurface structure and cross...
University of California
Tectonic Plates
Get an overview of all the tectonic plates that make up the earth's crust. The colorful contrasting and labeled plate boundaries make this an excellent resource.
Other
University of Delaware: Plate Tectonics
This site is a very simple overview of plate tectonics. It includes a map of all the major plates and a diagram of the layers of the earth.