Volcanoes Vocab Flashcard 2025

Front

A major belt of volcanoes that rims the Pacific Ocean.

Back

ring of fire

Front

the pocket beneath a volcano where magma collects

Back

magma chamber

Front

The opening through which molten rock and gas leave a volcano

Back

vent

Front

A material found in magma that is formed from the elements oxygen and silicon; it is the primary substance of Earth's crust and mantle.

Back

silica

Front

The flow of ash, cinders, bombs, and gases (no lava) down the side of a volcano during an explosive eruption.

Back

pyroclastic flow

Front

not currently active but able to become active in the future

Back

dormant

Front

term used to describe a volcano that is no longer active and unlikely to erupt again

Back

extinct

Front

a steep, cone-shaped hill or small mountain made of volcanic ash, cinders, and bombs piled up around a volcano's opening

Back

cinder cone volcano

Front

a tall, cone-shaped mountain in which layers of lava alternate with layers of ash and other volcanic materials

Back

composite volcano

Front

a wide, gently sloping mountain made of layers of lava and formed by quiet eruptions

Back

shield volcano