| A | B |
|---|
| rock | a solid mixture of crystal of one or more minerals |
| rock cycle | the process by which one rock type changes into another rock type |
| magma | hot liquid rock |
| sedimentary rock | forms when sediments are compacted and cemented together |
| metamorphic rock | forms when the texture and composition of preexisting rock changes due to heat or pressure |
| igneous rock | forms from the cooling of magma |
| composition | the makeup of a rock |
| texture | the size, shapes, and positions of the grains in rock |
| intrusive | igneous rock that forms beneath Earth's surface |
| extrusive | igneous rock that forms on the Earth's surface |
| stratification | the layering of sedimentary rock |
| wind, water, ice, sunlight, and gravity | cause rock to weather into fragments |
| fine-grained | rocks made entirely of small grains, such as silt or clay |
| coarse-grained | rocks that are made of large grains, such as pebbles |
| medium-grained | rocks that have a texture between fine- and coarse grained |
| igneous | Latin word for fire |
| weathering | the breakdown of rock into smaller pieces |
| erosion | the removal and transport of material by wind, water, or ice |
| felsic | rock that is lighter in color and weight |
| mafic | rock that is darker and heavier |
| clastic sedimentary rock | rock that is made of fragments of other rocks and minerals |
| chemical sedimentary rock | sedimenntary rock that forms from solutions of minerals and water |
| organic sedimentary rock | rock the is made up of the remains of animals that once lived in the ocean |
| foliated | metamorphic rock that looks almost like pages in a book |
| nonfoliated | rock that does not appear to have any regular pattern |
