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Rocks
Ch 6 Test Review
| Question | Answer |
|---|---|
| What are the 3 major types of Rocks? | Igneous, Metamorphic, & Sedimentary |
| What type of rock is formed in and around Volcanoes? | igneous |
| what are the 2 types of Igneous rocks? | extrusive and intrusive |
| Where are INtrusive rocks formed? (inside Earth or outside Earth?) | INside - INtrusive |
| Do intrusive rocks cool quickly or slowly? | slowly (inside Earth, insulated, longer to cool) |
| what size crystals do intrusive rocks have? (large or small) | Large (cools slowly, has time to form larger crystals) |
| Are intrusive rocks made from magma or lava? | magma (still called magma while INside earth) |
| Where are EXtrusive rocks formed? (inside Earth or ouside Earth) | outside Earth (EXtrusive - EXited Earth) |
| Do EXtrusive rocks form quickly or slowly? | quickly (EXtrusive - molten material (lava) has EXited Earth and cools faster when EXposed to air) |
| What size crystals do EXtrusive rocks have? | small crystals or has holes or glassy appearance (cools too quickly) |
| Are EXtrusive rocks made from magma or lava? | lava (molten rock that has EXited earth) |
| What are examples of INtrusive rocks | granite |
| What is an example of an EXtrusive rock? | obsidian, pumice(holes-floats) |
| What are the 2 different types of metamorphic rocks? | Foliated and Non-Foliated |
| What does foliated mean? | has layers |
| What does non-foliated mean? | does NOT have layers |
| How are metamorphic rocks formed? | heat and pressure |
| What is an example of a foliated metamorphic rock? | gneiss ("nice"), slate |
| What is an example of a non-foliated metamorphic rock? | marble, anthracite coal |
| How are sedimentary rocks formed? | compaction and cementation |
| what are the 3 types of sedimentary rocks? | organic, chemical and clastic (organic & chemical are considered non-clastic) |
| How are organic sedimentary rocks formed? | once living organisms |
| How are clastic sedimentary rocks formed? | from broken pieces of rocks |
| How are chemical sedimentary rocks formed? | settle out of a solution |
| What is an example of an organic sedimentary rock? | bituminous coal, coquina, chalk |
| What is an example of a clastic sedimentary rock? | conglomerate, limestone |
| What is an example of a chemical sedimentary rock? | rock salk, limestone |
| How do sedimentary and metamorphic rocks turn into igneous rock? | heat and melt, then cool and harden |
| How are igneous rocks formed? | hot, molten material cools and hardens |
| How do metamorphic and igneous rocks turn into sedimentary rock? | weathering and erosion, then compaction and cementation |
| How do igneous and sedimentary rocks turn into metamorphic rock? | heat and pressure |
Created by:
ebegley
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