Unit 7.2 Volcanoes Test Review

Front

Eruption

Back

The release of material from a volcano, such as lava and gases, often explosively.

Front

Caldera

Back

A very wide crater formed by the collapse of the top of a volcano after a very large eruption.

Front

Shield Volcano

Back

A broad volcano with gently sloping sides.

Front

Stratovolcano

Back

A steep-sided, often cone-shaped volcano.

Front

Fissure Vent

Back

A linear crack, usually at the bottom of the ocean, through which lava erupts.

Front

Crystal

Back

A special kind of solid that has a regular shape, often with shiny surfaces.

Front

Crystallization

Back

The formation of a crystal from a liquid, often during cooling.

Front

Lava

Back

Molten liquid rock material that comes out of a volcano and forms rocks.

Front

Molten

Back

A property of a substance meaning liquefied by heat.

Front

Crust

Back

The thin layer of solid rock that forms the surface of the Earth (both over and under the oceans).