This collection of animations, demonstration projects, paper models, and other teaching tools is designed to aid in the understanding of geologic processes. Topics include sea-floor spreading and subduction, earthquakes, seismology, magnetometers, volcanoes, and wave types. Links are provided to other sites containing paper models (i.e., volcano, trilobite, nautiloid) and other geology and natural hazard information. The earthquake lesson plan includes guidelines for teacher preparation, an "in-class inquiry," and a quiz. Educational levels: High school, Middle school, Undergraduate lower division