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Rock Types and Cycle
| Question | Answer |
|---|---|
| What are the three rock types? | -metamorphic - sedimentary - igneous |
| How are igneous rocks made? | When magma cools down and solidifies. |
| How are metamorphic rocks made? | When sedimentary or igneous rocks are put under immense pressure or heat underground |
| How are sedimentary rocks made? | Sedimentary rocks are made when rocks form layers of sediment. |
| What are extrusive rocks? | Igneous rocks that are made by volcanic eruptions |
| What are intrusive rocks? | Igneous rocks that are formed underground are called intrusive rocks. |