| A | B |
|---|
| Rock | a hard subtance composed of one or more minrals or minerallike subtances |
| Igneous | formed from molten rock |
| Sedimentary | formed by the compacting and cementing of sediment or by non-igneous process at the Erath's surface |
| Sediment | particles or organic materials that have been carried along and deposited by water and/ or wind |
| Metamorphic | changed in form as a result of chemical reactions, heat, and/ or pressure |
| Rock Cycle | the interrelated processthat cause thecontinuous changing of rocks from one to another |
| Extrusive Rock | an igneous rock formed from lava crystallized at the surface of the Earth |
| Intrusive Rock | an igneous rock formed from magma |
| Clastic Rock | a sedimentry rock formed from fragments of previously existing rocks |
| Organic Rock | a sedimentry rock that is formed either directly or indirectly from material that was once living |
| Chemical Rock | a non-clastic sedimentry rock formed by inorganic processes such as evaportion |
| Metamorphism | the process in which metamorphic rock is formed |
