Igneous Rocks

What are igneous rocks?

• Igneous rocks are formed from the erosion of sedimentary rocks.

• Igneous rocks are formed from the solidification of molten material, either magma or lava.

• Igneous rocks are formed from the compression of organic matter.

• Igneous rocks are formed from the cooling of water vapor.

How are igneous rocks formed?

• Igneous rocks are formed by erosion and sedimentation

• Magma evaporates and leaves behind solid rocks

• Igneous rocks are formed by the compression of sedimentary rocks

• Magma cools and solidifies

Is it magma or lava if it is inside a volcano?

• magma

• lava

What is the term used for the cooling and solidification of magma?

• solidification

• liquefaction

• crystallization

• vaporization

What are the two main types of igneous rocks?

• intrusive and extrusive

• volcanic and plutonic

• sedimentary and metamorphic

• granite and basalt

What is obsidian?

• A naturally occurring volcanic glass formed as an extrusive igneous rock.

• A type of igneous rock formed from the solidification of magma.

• A type of metamorphic rock formed from the recrystallization of limestone.

• A type of sedimentary rock formed from the accumulation of organic materials.