Earth’s internal & external heat engines Heat transfer Conduction Convection Radiation Density Crust Mantle Outer Core Inner Core Lithosphere Asthenosphere Lithospheric Plates Convergent Plate Boundary Subduction Zone Divergent Plate Boundary Transform Fault Plate Boundary Magma Earthquake Focus Epicenter Magnitude Volcano Lava Continental Crust Oceanic Crust Continental Drift Plate Tectonics Mid Ocean Ridge Rift_____________continued on the page below a. Trench Seismic Wave b. P wave c. S wave d. Surface vs Body Waves e. Velocity Refraction Island Arc