| A | B |
|---|
| rocks | minerals, mineraloids, glass, quartz |
| cementation | sediments become glued together |
| compaction | sediments are pressed together |
| extrusive | igneous rocks that form when lava cools above ground |
| intrusive | igneous rock that forms when lava cools below ground |
| lava | molten material at earth's surface |
| metamorphic rock | a rock formed by heat and pressure |
| nonfoliated | quartzite has this kind of texture |
| rock cycle | processes that form and change rocks |
| sedimentary rock | fragments of rocks, minerals, plants and animals |
| waste coal | poor-quality coal piled up near old mines |
| granitic | igneous rock that is rich in silicon and oxygen |
| cogeneration | power plant uses both thermal and electrical energy |
| basaltic | igneous rock that is rich in iron and magnesium |
| foliated | metamorphic rock formed when mineral grains flatten and line up in parallel lines |
| igneous rock | formed from cooling lava |
| sediment | loose materials, such as, rock fragments,mineral grains, and bits of plants and animals |
