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Chapter 3 Vocabulary
Chapter 3 Vocabulary - Rocks
Term | Definition |
---|---|
Rock | a naturally formed solid that is usually made up of one or more types of minerals |
Rock Cycle | the set of natural, repeating processes that form, change, and break down |
Igneous Rock | rock that forms as molten rock cools and becomes solid |
Sedimentary Rock | rock formed as pieces of older rock get pressed together and rebuild layers |
Metamorphic Rock | rock formed when heat or pressure causes rock to change structure, texture, and mineral composition |
Intrusive Rock | igneous rock that forms as magma cools below the Earth’s surface |
Extrusive Rock | igneous rock that forms as lava cools on the Earth’s surface |
Sediment | solid materials carried by water or air that settle in a body of water or on the ground |
Metamorphism | when a rock’s structure of mineral composition is changed by heat or pressure |
Recrystallization | when bonds between the atoms in minerals break and re-form in new ways |
Foliation | the arrangement of minerals within rocks into flat or wavy parallel bands; a characteristic of most metamorphic rocks |