| A | B |
|---|
| Geologist | A scientist that studies the earth. |
| Seismic Waves | A sound wave created by an earthquake. |
| Pressure | A force pressing on an area. |
| Crust | Outer most layer of the earth, both on land and the ocean floor. |
| Basalt | Rock on the ocean floor. |
| Granite | Rock on land. |
| Mantle | A layer of hot rock within the earth. |
| Lithosphere | rigid layer of rock between the crust and the mantle. |
| Asthenosphere | A layer just below the lithosphere that is a soft layer of hot rock. |
| Outer Core | A layer of molten metal that surrounds the inner core. |
| Inner Core | A dense ball of solid metal located in the center of the earth. |
| Magnetic Field | A region around a magnetic material or a moving electric charge within which the force of magnetism acts. |
