Metamorphic Rocks

Metamorphic rocks are foliated if their mineral grains are arranged randomly.

• true
• false

The metamorphic rock __________ usually forms when limestone is subjected to heat and pressure deep beneath the surface.

• marble
• slate
• sandstone

Because the foliated metamorphic rock __________ splits easily into flat pieces, it is used for roofing material.

• marble
• slate
• sandstone

Heat and pressure change the sedimentary rock shale into slate.

• true
• false

Metamorphic rock can form out of other metamorphic rock.

• true
• false

Geologists classify metamorphic rocks according to the __________ of the grains making up the rocks.

• pressure
• arrangement

The deeper a rock is buried in the crust, the greater the pressure on that rock.

• true
• false

Quartzite forms when the quartz particles in __________ recrystallize.

• marble
• slate
• sandstone

Metamorphic rocks form from ___.

• igneous rocks
• other metamorphic rocks
• sedimentary rocks
• all types of rocks

What are the two main types of metamorphic rocks and how are they different?

• intrusive and extrusive; intrusive rocks are formed inside the earth and extrusive rocks are formed on the surface
• foliated and nonfoliated; foliated rocks do not have visible bands/layers and nonfoliated rocks do have visible bands/layers
• intrusive and extrusive; intrusive rocks are formed on the earth's surface and extrusive rocks are formed in the Earth
• foliated and nonfoliated; foliated rocks have visible bands/layers and nonfoliated rocks do not have visible bands/layers