Igneous Rocks & Volcanoes Review

Front

What is an igneous rock?

Back

A type of rock formed from the cooling and solidification of lava or magma.

Front

How are igneous rocks classified?

Back

Igneous rocks are classified based on their texture and composition.

Front

What is the difference between lava and magma?

Back

Lava is molten rock that erupts onto the Earth's surface, while magma is molten rock that is found beneath the surface.

Front

What is a volcanic eruption?

Back

A volcanic eruption is the release of gas, ash, and molten rock from a volcano.

Front

What are the two main types of igneous rock?

Back

Intrusive (plutonic) and extrusive (volcanic) rocks.

Front

What is an explosive eruption?

Back

An eruption characterized by the violent expulsion of ash, gas, and lava.

Front

What is a quiet eruption?

Back

An eruption that produces low-viscosity lava that flows easily, resulting in gentle lava flows.

Front

What is a pluton?

Back

A body of intrusive igneous rock that has cooled and solidified beneath the Earth's surface.

Front

What is texture in igneous rocks?

Back

Texture refers to the size, shape, and arrangement of the crystals in the rock.

Front

What is composition in igneous rocks?

Back

Composition refers to the mineral content of the rock.