| A | B |
|---|
| landform | a physical feature of Earth's surface |
| weathering | the process of breaking rock into soil, sand, or other tiny pieces |
| erosion | the process of moving sediment from one place to another |
| deposition | the process of dropping sediment in a new location |
| mass movement | the downhill movement of rock and soil because of gravity |
| crust | the outer layer of Earth made of solid rock |
| mantle | the layer of rock beneath Earth's crust |
| core | Earth's hottest layer; the center of the Earth |
| plate | a rigid block of crust and upper mantle |
| magma | hot,soft rock from Earth's lower mantle |
| volcano | an opening in Earth's crust through wich lava flows |
| earthquake | a shaking of the ground caused by the sudden release of energy in Earth's crust |
| fault | a place where pieces of Earth's crust move |
| continental drift | the theory of how Earth's continents move over its surface |
| Pangea | the name of the "supercontinent" of the continental drift theory |
| fossils | the remains or traces of past life found in Earth's crust |
