| A | B |
|---|
| crust | the outer layer of the earth |
| volcano | a hole in the earth's crust through which melted rock flows. |
| magma | melted rock that flows below the earth's surface |
| lava | melted rock that flows over the earth's surface |
| plate | a large drifting section of the earth's surface |
| core | the hot solid center of earth |
| mantle | the layer of the earth made of hot liquid rocks |
| earthquake | a shaking of the earth's surface |
| erosion | the moving of weathered rocks and soil from one place to the other |
| weathering | the breaking up or wearing away of rocks |
| glacier | a large sheet of ice that moves slowly over land |
