| A | B |
|---|
| basaltic | igneous rock formed from magma rich in magnesium and iron |
| cementation | natural bonding process caused by water moving thru rock and soil |
| element | substance that is made of only one type of atom |
| extrusive | fine-grained igneous rock formed at Earth's surface |
| foliated | metamorphic rock with grains lined up in parallel lines |
| granitic | silica-rich igneous rock less dense than basaltic |
| intrusive | igneous rock with large crystals |
| lava | molten rock that flows from volcanoes |
| metamorphic rock | heat + pressure act on rock to change its form or composition |
| mineral | inorganic solid that has a definite chemical composition |
| nonfoliated | metamorphic rock whose mineral grains do not form layers |
| pressure | amount of force exerted per unit of area |
| rock | mixture of one or more minerals |
| rock cycle | how rocks slowly change from one form to another through time |
| sediments | loose materials like fragments, grains and remains moved by wind, water, ice, gravity |
| weathering | mechanical or chemical surface process that breaks rock |
