| A | B |
|---|
| Convergent Boundary | convergent boundary area where two tectonic plates collide |
| Crust | outermost layer of Earth covering the mantle |
| Earthquake | the shaking of the ground caused by a sudden release of energy in Earth’s crust |
| Equator | an imaginary circle around Earth’s surface located between the poles and a plane perpendicular to its axis of rotation that divides it into the Northern and Southern Hemispheres |
| Erosion | a combination of natural processes in which materials from Earth’s surface are loosened, dissolved, or worn away and transported from one place to another |
| Fault | a rock fracture along which movement or displacement of Earth’s crust has taken place |
| Igneous Rock | a type of rock that forms from molten or partly molten material that cools and hardens |
| Metamorphic Rock | a type of rock that forms from existing rock because of extreme changes caused by heat, pressure, or chemical environments |
| Plate Tectonics | theory of global dynamics in which Earth’s crust is divided into a smaller number of large, rigid plates whose movements cause seismic activity along their borders |
| Sedimentary Rock | rock formed from layers of sediment that overlay and squeeze together or are chemically combined |
| Topography | the surface, shape, and composition of a land area |
| Volcano | a vent or fissure in Earth’s surface through which magma and its associated materials are expelled; generally a mountain-like structure |
