| A | B |
|---|
| extrusive rock | igneous rock formed from lava |
| intrusive rock | igneous rock formed from magma beneath the Earth's surface |
| deposition | process in which sediment is placed in a new place |
| erosion | process by which wind, water, ice or gravity moves weathered rock |
| sediment | small pieces of rock |
| compaction | process by which sediments are pressed together under their own pressure |
| cementation | process by which dissolved minerals glue sediments together |
| chemical rock | sedimentary rock formed when minerals crystallize from a solution |
| clastic rock | sedimentary rock that forms from rock fragments squeezed together |
| organic rock | sedimentary rock forms from the remain of living things |
| foliated | metamorphic rock that has grains arranged in parallel bands |
| nonfoliated | metamorphic rock that does have grains arranged in bands |
| rock cycle | series of processes that change rocks from one kind to another |
| metamorphic rock | type of rock that forms from an existing rock that is changed by heat and pressure |
| sedimentary rock | type of rock formed when pieces of rock or remains of organisms are pressed and cemented together |
| igneous rock | type of rock formed from the cooling of magma or lava |
| magma | molten rock beneath the Earth's surface |
| lava | molten rock on the Earth's surface |
| texture | look and feel of a rock's surface; may be fine-grained, coarse-grained, or have no visible grain |
