| A | B |
| Geologists classify metamorphic rock into two groups according to | the arrangement of the grains that make up the rock. |
| The texture of a metamorphic rock that has grains arranged in parallel layers is described as | foliated. |
| Metamorphic rocks that are nonfoliated | do not split into layers. |
| A series of processes on Earth’s surface and in the crust and mantle that slowly changes rocks from one kind of rock to another kind of rock is called | the rock cycle. |
| The step in the rock cycle would be required to change granite into sandstone | Granite particles deposit on the ocean floor |
| The two most useful metamorphic rocks | marble and slate |
| During the rock cycle, a collision between two continental plates could force one plate down toward the heat of the mantle, producing | metamorphic rock. |
| The process in which dissolved minerals crystallize and glue particles of sediment together is | cementation. |
| Generally, a rock is made up of | a mixture of minerals and other materials. |
| Small, solid pieces of material that come from rocks or living things are called | sediment |
| The sedimentary rock called ____________________ is used in making cement. | limestone |
| The carrying away of rock fragments by water, wind, or ice is called | erosion |
| When seas or lakes evaporate, a type of sedimentary rock called a ______ can form | chemical rock |
| Sediment settles out of moving water by the process of | deposition |
| Metamorphic rocks such as marble and quartzite are said to be | nonfoliated |