This document appears to be a study guide for a lesson on Earth's interior and earthquakes. It lists key terms related to the layers of Earth's interior in order, seismic waves, types of rock layers, types of crust, tectonic processes like folding and faulting, the San Andreas Fault, earthquake concepts like focus, epicenter, seismologists, triangulation, P-waves, S-waves, similarities between seismic waves and sound waves, tsunamis, earthquakes, and seismographs.