Fast Changes to the Earth Volcano

Front

What is an earthquake?

Back

A sudden shift in the earth's crust caused by shifting plates, which can cause great damage to land and property.

Front

What is a transform boundary?

Back

A plate boundary where two plates slide past each other.

Front

What is the epicenter of an earthquake?

Back

The center and starting point of an earthquake, where two plates have suddenly shifted.

Front

What is obsidian?

Back

A type of volcanic (igneous) rock that looks like black glass.

Front

What is a vent in a volcano?

Back

An open hole in a volcano where gas can escape.

Front

What causes earthquakes?

Back

Earthquakes are caused by the movement of tectonic plates beneath the Earth's surface.

Front

What is magma?

Back

Magma is molten rock located beneath the Earth's surface.

Front

What is a volcano?

Back

A volcano is an opening in the Earth's crust through which molten rock, ash, and gases can escape.

Front

What is a tsunami?

Back

A large ocean wave caused by underwater earthquakes or volcanic eruptions.

Front

What is a dormant volcano?

Back

A volcano that has not erupted in a long time but may erupt again in the future.