| A | B |
|---|
| rock | a hard substance composed of one or more minerals or a minerallike substance |
| igneus | formed from molten rock |
| sedimentary | formed by the compacting and cementing of sediments or by other non-igneus processes at the Earth's surface |
| metamorphic | changed in form as a result of chemical reactions,heat, or pressure |
| sediment | partacles of rockor organic matierials that have been carried along and deposited by water or wind |
| rock cycle | the interrelated process that cause the continus changeing of rocks from one kind to another |
| extrusive rock | an igneus rock formed from lava and crystalized at the surface of the Earth |
| intrusive rock | an igneus rock formed from magma |
| clastic rock | a sedimemtary rock formed from fragments of previosly existing rocks |
| organic rock | a sedimentary rock that is formed either directly or indirectly from matierial that was once alive |
| chemical rock | a non-clastic sedimentary rock formed by inorganic process such as evaporation |
| metamorphism | the process in which metamorphic rock is formed |
