Metamorphic Rocks

What sedimentary rock is changed into slate during metamorphism?

• Shale

• Limestone

• Sandstone

• Breccia

When metamorphic rocks are formed, the extreme heat is usually caused by the _______.

• gravity in the atmosphere

• collision of tectonic plates

• the fiery hot magma in the Earth's mantle

• weight of the mountains

True / False: Metamorphic rocks can be metamorphosed more than once.

• True

• False

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

metamorphic rocks have mineral grains that are not arranged in distinct bands.

• Conglomerate

• Non-foliated

• Foliated

• Permeated

Which texture best describes the rock above?

• porphyritic 

• nonfoliated

• foliated

• clastic

Metamorphic Rocks are classified by

• Mineral Composition

• Texture (foliated / non foliated)

• Grain Sizes

• How they formed.

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

• 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