| A | B |
|---|
| natural resources | materials that nature provides which can be used in production |
| mineral | solid, nonliving substance with a crystal form |
| physical weathering | natural process of breaking down rocks by gravity, wind and running water |
| chemical weathering | natural process of breaking down rocks during exposure to air, moisture and organic material |
| rock-forming minerals | minerals that make up the most common rocks in earth's crust |
| element | substance whose atoms all have same atomic number and cannot be divided by physical means |
| igneous rock | rock solidified from a molten state |
| sedimentary rock | rock made up of fragments of other rocks and minerals |
| metamorphic rock | sedimentary or igneous rock in which the minerals or texture or both have been changed by high temp and pressure without melting |
| magma | molten rock beneath earth's surface |
| lava | magma that pours out onto earth's surface |
| extrusive rock | rock formed from lava or from other volcanic material spewed onto earth's surface |
| intrusive rock | igneous rock that forced its way in a molten state into surrounding rock before cooling |
| foliation | a parallel or nearly parallel structure caused by a parallel arrangement of platy minerals |
| clastic rock | a sedimentary rock formed from particles that were transported |
| crust | upper part of the lithosphere |
| lithosphere | solid portion of earth's crust |
| continental drift | theory of separation of continents from great Pangeae |
| plate tectonics | theory that there are 6 large crustal plates and many smaller ones that move around on earth's surface |
| halite | table salt |
| seafloor spreading | movement of oceanic plates away from each other |
| subduction zone | shear zone between a sinking oceanic plate and an overriding plate |
| mine | an excavation made in the earth for the purpose of extracting ore |
| fertilizers | a substance that makes the land or soil capable of producing more and healthier vegetation or crops |
| reclamation | the purpose of restoring to cultivation, useful purpose, or original state |
| conservation | a careful preservation and protection of something |
