| A | B |
|---|
| Sedimentary | formed by the compacting and cementing of non-igneous processes at the surface of Earth |
| Igneous | one of the three main types of rocks, formed from molten rock |
| 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 |
| Sediment | particals of a rock or organic materials that have been carried along and deposited by water and or wind |
| Extrusive rocks | an igneous rockformed from lava and crystallized at the surface of the Earth |
| Instrusive rocks | an igneous rock formed from magma |
| Metamorphism | the changing of one type of rock into another as a result of heat, pressure or chemicals reactions |
| Conglomerate | when over a third of the rock is made of pebbles |
| Organic rocks | a sedimentary rock that is formed either directly or indirectly from material that was once alive |
| Chemical rocks | a non-clastic sedimentary rock formed by inorganic process such as evaporation |
| Clastic rocks | a sedimentary rock formed from fragments of previously existing rocks |
| Foliated | the latin word for leaf |
| Porphyritic | rocks that consist of large crystals |
