Igneous and Metamorphic Practice

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

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

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

• Conglomerate
• Non-foliated
• Foliated
• Permeated

How do metamorphic rocks form? 

• Heat and Pressure
• Compaction & Cementation
• Cooling of Magma
• Sediments & Glue

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.

Morph means what?

• change
• alter
• switch
• rearrange

The deeper a rock is buried, the greater the pressure is on it

• True 
• False

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

• True
• False