| A | B |
|---|
| Why are metamorphic rocks not common on earths surface | they form in the earths crust |
| How do metamorphic rocks reach the earths surface | only when forces in the earth lift them up and weathering wears away the rocks and soil on top of them |
| The process by which any kind of rock is changed into metamorphic rock is called? | metamorphism |
| What forces cause metamorphism? | when intence heat and pressure can change the propertiesof rock |
| The type of metamorphic rock formed depends on two things | the roc that existed before metamorphism, on the degree of metamorphism |
| In_______ metamorphism, rocks change slightly with less intense heat and pressure,an example of this changing shale into _____ | low-grade, slate |
| What metamorphism is intense enough to change a rock compleately | Grade |
| what forms when limestone has gone through metamorphism | gneiss |
| what metamorphism occurs in large areas around plate boundaries. | regional |
| what metamorphism occurs when magma rises and touches existing rock and bakes the rock, changing its structure | contact |
| Granite is turned into______by metamorphism | gneiss |
| _____rocks have layers or bands you can see | foliated |
| How do Foloated rocks form | pressure folds rock, giving foliated rock its layered look |
| ______rocks like marble, do not have layers | Nonfoliated |
| Why is shale the parent rock of several types of metamorphic rock | The rock that existed before metamorphism |
| what is the most important cause of metamorphism | heat |
| What metamorphic rocks are popular as building material? | Marble, slate |
| How is the mineral talc used | for lubrication and dusting power |
| how is granite used | in pencils , is used as a lubricant |
