| A | B |
|---|
| metamorphic rock | Any rock that has been changed without melting, by heat and pressure |
| foliated | composed of or separable into layers |
| pressure | the application of force to something by something else in direct contact with it; compression |
| regional metamorphism | rocks are transformed by pressure & heat deep within Earth |
| contact metamorphism | rocks are altered at or near Earth's surface as resulr of nearby magma or lava |
| rock cycle | model of natural changes in rocks and rock material |
| resources | materials we depend on for our physical needs |
| ore | a mineral containing a valuable constituent (as metal) for which it is mined and worked |
