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Vocabulary for Rocks
6th grade science vocabulary for rocks, minerals, and soil
| Term | Definition |
|---|---|
| rock cycle | The slow process by which old rocks are recycled into new rocks. |
| rock | A naturally occurring solid mixture of minerals and organic matter. |
| texture | The size, shape and position of the grains that make up a rock. |
| strata | layers of rock |
| sediments | Small grains and fragments of weathered rock. |
| metamorphic | This type of rock forms deep in the earth as a result of extreme heat and pressure. |
| extrusive igneous rock | This fine-grained rock forms as magma cools quickly on the surface. |
| erosion | The process by which sediment is removed from its source. |
| deposition | The process by which eroded sediment is laid down. |
| igneous | Rock formed from cooled magma. |
| composition | The chemical make-up of a rock. |
| sedimentary | This type of rock forms as deposited sediment becomes compacted and cemented. |
| chemical weathering | the breakdown of rock into smaller pieces by chemical means such as carbon dioxide dissolved in water |
| physical weathering | the breakdown of rock into smaller pieces by physical means such as wind and water |
| intrusive igneous rock | Forms as magma cools slowly within the Earth. |
| organic | Living or alive at one time (plant/animal matter) |
| inorganic | this type of material was never alive |