Igneous Rocks

Front

What are igneous rocks?

Back

Rocks formed from the cooling and solidification of molten material called magma or lava.

Front

What is magma?

Back

Melted material beneath the Earth's surface, free from contact with oxygen.

Front

What is lava?

Back

Magma that has erupted onto the Earth's surface.

Front

What is the difference between intrusive and extrusive igneous rocks?

Back

Intrusive igneous rocks form from magma that cools slowly beneath the Earth's surface, while extrusive igneous rocks form from lava that cools quickly on the surface.

Front

What is a coarse-grained igneous rock?

Back

An igneous rock that has large crystals due to slow cooling of magma.

Front

What is a fine-grained igneous rock?

Back

An igneous rock that has small crystals due to rapid cooling of lava.

Front

Give an example of an intrusive igneous rock.

Back

Granite.

Front

Give an example of an extrusive igneous rock.

Back

Basalt.

Front

What is the process of cooling and solidification of magma called?

Back

Crystallization.

Front

What are some common uses of igneous rocks?

Back

Statues, kitchen counters, building materials.