| A | B |
|---|
| sedimentary | Formed by the compacting and cementing of sediments or by other non-igneous processes at the Earth's surface. |
| sediments | Particles of rock or organic materials that have been caried along and deposited by water and/or wind. |
| rock | A hard substance composed of one or more minerals or minerallike substances. |
| metamorphic | Changed in form as a result of chemical reactions,heat,and/or pressure. |
| rock cycle | The interrelated processes that cause the continuous changing of rocks from one kind to another. |
| extrusive rocks | An igneous rock formed by lava and crystallized at the surface of the Earth. |
| instrusive rocks | An igneous rock formed from magma. |
| clastic rocks | A sedimentary rock formed from fragments of previously existing rocks. |
| organic rocks | A sedimentary rock that is fomed either directly or inderectly from materail that was once alive. |
| chemical rock | A non-clastic sedimentary rock formed by inorganic processes such as evaporation. |
| igneous | Formed from molten rock . |
| sedimentary | Formed by the compacting and camenting of sediments or by a other processes at the Earth's surface. |
| metamorphism | The changing of one type of rock into another as a result of heat,pressure,and/or chemical reactions. |
