| A | B |
|---|
| igneous rock | made from cooled liquid rock |
| scientific law | rule of nature |
| theory | possible explanation |
| International System of Measurement | modern metric system |
| lithification | change of sediments into rock |
| chemical reaction | change in the substance through the rearrangement of atoms |
| deposition | sediments are laid down |
| fractional crystallization | different minerals crystallize at different temperature in magma |
| geology | study of Earth |
| mechanical weathering | process that breacks down rock without changing the composition |
| partial melting | process in which different minerals milt into magma at different temperatures |
| cementation | mineral growth cements sediment grains together |
| bedding | layering in rock |
| cross-bedding | inclined layers of sdiment |
| fossil | eividence of past Earth life |
| evaporite | dissolved deposit left after the evaporation of water |
| clastic sedimentary rocks | formed from the doposits of loose sediments on Earth surface |
| porosity | the percentage of open spaces between grains in a rock |
| organic sedimentary rock | formed from the remains of once living things |
| chemical sedimentary rocks | formed by the precipitation of dissolved minerals from water |
