Exploratorium
Exploratorium: Earthquake Faultline Earthquake Activities
This outstanding website provides an excellent variety of hands-on earthquake activities to help you understand what causes earthquakes.
NASA
Nasa: Alfred Wegener
An excellent biography of Wegener that includes his breakthrough work and the storm of controversy it created. Finally, Alfred Wegener has gotten the praise and recognition he deserved.
US Geological Survey
Usgs: How to Build a Model Illustrating Sea Floor Spreading
This is a comprehensive website featuring how to build a model that illustrates sea-floor spreading and subduction. It has diagrams and pictures reviewing major geological concepts.
Other
Bscs: Content Background Earth's Changing Surface
This is written to support and further your content learning about the dynamic nature of Earth's surface. The goal is for you to develop a conceptual understanding of landforms so that you will be able to more effectively teach...
CK-12 Foundation
Ck 12: Earth Science: Earthquake Zones Study Guide
A brief overview of the earthquake zones.
PBS
Mountain Maker Earth Shaker
This resource gives an introduction to the theory of plate tectonics. It also has animations of four types of plate boundary interactions (convergent, divergent, transforming, collisional).
Other
Bc Open Textbooks: Physical Geology: Regional Metamorphism
Discusses the regional metamorphic zones in Nova Scotia, Canada, and the geological processes that caused them to form. Regional metamorphism happens deep within the Earth's crust and eventually, the buried rocks are exposed, usually due...
Other
Ocean Trenches
A rather detailed explanation of how trenches form and why. No graphics, but some interesting explanations as well as links to other sites and extensive reference list.