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Earths Surface Ch 3
Vocabulary from Ch. 3: Rocks
| Question | Answer |
|---|---|
| rock | a naturally formed solid that is usually made up of one or more minerals |
| rock cycle | the set of natural processes that form, change, break down, and re-form rock |
| igneous rock | forms when molten rock cools and becomes solid |
| sedimentary rock | forms when pieces of older rocks, plants, and other loose material get pressed or cemented together |
| metamorphic rock | forms when heat or pressure cause older rocks to change into new types of rocks. |
| intrusive igneous rock | forms when magma cools within Earth. |
| extrusive igneous rock | forms when lava cools on Earth's surface. |
| sediments | materials that settle out of air or water. |
| metamorphism | the process in which an existing rock is changed by heat or pressure. |
| recrystallization | a process in which heat and pressure can break the bonds that join atoms in minerals, and then the atoms can join together differently as new bonds form. |
| foliation | an arrangement of minerals in metamorphic rock in flat or wavy parallel bands |