Grade 6. 8.5 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

Marble is often used in sculpture because its even color allows it to be carved into complex and detailed shapes.

• true
• false

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

Any rock formed when another rock is changed by heat or __________ is a metamorphic rock.

• pressure
• arrangement

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