| A | B |
|---|
| landform | different shapes of the land |
| crust | outer layer of earth |
| mantle | middle layer of earth |
| core | center layer of earth |
| plates | large sections of rock making up earth's crust |
| fault | a crack in the crust along which rocks move |
| earthquake | shaking or sliding of earth's crust |
| seismograph | an instrument that measures the strength of an earthquake |
| weathering | breaking down and wearing away of rocks |
| erosion | moving of weathered rock and soil |
| sediment | tiny bits of rocks, shells and other materials |
| deposition | the dropping of sediments moved by erosion |
| glacier | a large, slow moving mass of ice. |
| metamorphic rock | rocks formed by heat and pressure |
| igneous rock | rocks formed when magma cools and hardens |
| sedimentary rock | rocks formed when sediments have been pressed together |
| magma | melted rock deep inside the earth |
| lava | magma that comes above ground |
| mineral | nonliving solid matter from the earth |
