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6th Science
3.3 - 6.3 vocabulary
| Question | Answer |
|---|---|
| Extrusive rock | Igneous rock formed from lava that erupted onto Earth’s surface |
| Intrusive rock | Igneous rock that formed when magma hardens beneath the surface of Earth |
| Sediment | Small, solid pieces of material that come from rocks or living things |
| deposition | The process by which sediment settles out of the water or wind carrying it |
| weathering | The chemical and physical processes that break down rock and other substances. |
| compaction | The process that presses sediments together |
| cementation | The process in which dissolved minerals crystallize and glue particles of sediment together. |
| Clastic rock | Sedimentary rock that forms when rock fragments are squeezed together under high pressure. |
| erosion | The process by which running water, wind, or ie carry away bits of broken-up rock. |
| Organic rock | Sedimentary rock that forms from remains of organisms deposited in thick layers. |
| Chemical rock | Sedimentary rock that forms when minerals crystallize from a solution. |
| foliated | Rocks that have their grains arranged in either parallel layers or bands. |
| Rock cycle | A series of processes that occur on Earth’s surface and in the crust and mantle that slowly change rocks from one kind to another. |