Review Igneous and Metamorphic Rocks Rock Vocabulary Review Igneous and Metamorphic Rocks

This rock forms from magma found deep under Earth’s surface ________________

Answer: Igneous Rocks

Molten material found deep within the Earth ______________

Answer: Magma

Molten material on the surface of the Earth _______________.

Answer: Lava

Magma trapped below the surface forms large-grained _____________ _______________ rock when it cools.

Answer: Intrusive Igneous

Magma cooling at or near Earth’s surface forms small-grained ____________ _______________ rock.

Answer: Extrusive Igneous

List the 3 different types of Magma ____________, ______________, _________________.

Answer: Basaltic, Granitic, and Andesitic

What type of magma contains iron and magnesium and produces igneous rocks that are dark-colored?

Answer: Basaltic

What type of magma is thick and stiff and contains lots of silica and produces a lighter colored igneous rocks?

Answer: Granitic

What type of magma has a mineral composition between those of basaltic and granitic rocks?

Answer: Andesitic

Name the two ways we can identify igneous rocks.

Answer: 1) Texture-Crystal size 2) Mineral Content-Color

What type of rock is formed by heat and pressure?

Answer: Metamorphic Rocks

What type of texture does a metamorphic rock have when the mineral grains flatten and line up in parallel layers or band?

Answer: Foliated

What type of texture does a metamorphic rock have when mineral grains grow and rearrange but do not form layers?

Answer: Nonfoliated

Identify the following rocks as igneous or metamorphic.

A B

A=Granite/Ig. B=Gneiss/Meta

A B

A=Pumice/Ig B=Slate/Meta

A B

A=Basalt/Ig B=Anthracite Coal/Meta

A B

A=Gabbro/Ig B=Marble/Meta

Identify the following minerals

This mineral is very soft!

Answer: Talc

What is the name of this mineral?

Answer: Feldspar

What is the name of this mineral?

Answer: Quartz

This mineral shows cleavage!

Answer: Mica