| A | B |
|---|
| layer of earth that is entirely liquid; responsible for magnetic field | outer core |
| fracture in earth where movement has occurred | fault |
| place on surface above the focus | epicenter |
| Inner layer of earth, solid iron due to intense pressure | inner core |
| Outer layer of earth, thinnest | crust |
| Layer on which the tectonic plates float, relatively soft | asthenosphere |
| lower layer of the mantle | mesosphere |
| layer that consists of the crust and the upper mantle | lithosphere |
| 2 types of seismic waves | surface waves & body waves |
| Types of body waves | P and S waves |
| Type of body wave that is fastest, pressure waves, can move through all materials | P waves |
| ____ can be used to map the deep interior of the earth | seismic waves |
| place where earthquakes originates | focus |
| layer beneath the crust, most of earth's volume | mantle |
| the sudden return of elastically deformed rock to its unstretched shape | elastic rebound |
| boundary between crust and mantle | Moho |
| slower waves, only travel through solids | S waves |
| crust that is thicker but less dense | continental crust |
| crust that is thinner and more dense | oceanic crust |
