| A | B |
|---|
| andesitic rock | type of magma that has moderate silica; forms gray or black and white rocks |
| basaltic rock | type of magma that is low in silica; forms dark colored rocks |
| cementation | mineral forms between sediment and acts as cement |
| chemical rock | sedimentary rock formed from evaporation of water that leaves behind minerals |
| clastic rock | sedimentary rock formed from fragments of other rock |
| compaction | particles are crushed under enormous pressure |
| deposition | sediments settle out of water or rain |
| erosion | sediments are worn away from existing rock |
| extrusive rock | igneous rock that cools quickly above ground; small grains |
| foliated rock | metamorphic rock with visible bands or stripes |
| granitic rock | type of magma that has high silica; forms light colored rocks |
| igneous rock | rock formed from molten rock |
| intrusive rock | igneous rock that cools slowly underground; large grains |
| metamorphic rock | rock formed by changing another rock due to intense heat and pressure |
| non-foliated rock | metamorphic rock without visible bands or stripes |
| organic rock | sedimentary rock formed from remains of living things |
| sedimentary rock | rock formed from compaction and cementation of tiny particles |
