| A | B |
|---|
| cementation | The process by which dissolved minerals crystallize and glue particles of sediment together into one mass. |
| chemical rock | Sedimentary rock that forms when minerals crystallize from a solution. |
| clastic rock | Sedimentary rock that forms when rock fragments are squeezed together under high pressure. |
| compaction | The process by which sediments are pressed together under their own weight. |
| coral reef | A structure of calcite skeletons built up by coral animals in warm, shallow ocean water. |
| deposition | The process by which sediment settles out of the water or wind that is carrying it. |
| erosion | The destructive process in which water or wind loosens and carries away fragments of rock. |
| extrusive rock | Igneous rock that forms from lava on Earth's surface. |
| foliated | Term used to describe metamorphic rocks that have grains arranged in parallel layers or bands. |
| grains | The particles of minerals or other rocks that give a rock its teture. |
| igneous rock | A type of rock that forms from the cooling of molten rock at or below the surface. |
| intrusive rock | Igneous rock that forms when magma hardens beneath Earth's surface. |
| metamorphic rock | A type of rock that forms from an existing rock that is changed by heat, pressure, or chemical reactions. |
| organic rock | Sedimentary rock that forms from remains of organisms deposited in thick layers. |
| rock | A solid mixture of minerals and other materials |
| rock cycle | A series of processes on the surface and inside Earth that slowly changes rocks from one kind to another. |
| rock-forming minerals | One of the common minerals that make up most of the rocks of Earth's crust. |
| sediment | Small, solid pieces of material that come from rocks or organisms |
| sedimentary rock | A type of rock that forms when particles from other rocks or the remains of plants and animals are pressed and cemented together. |
| texture | The look and feel of a rock's surface. |
