Ch 5 Lesson 3 Voolcano Vocab Flashcard

Front

What is a hot spot?

Back

A stationary pool of magma beneath the Earth's crust where volcanic activity can occur.

Front

What is a volcano?

Back

An opening in Earth's crust through which lava, ash, and gases are expelled.

Front

What forms when an ocean floor plate is pushed under another ocean floor plate?

Back

An island arc, which is a curved chain of volcanic islands.

Front

What are Cinder-Cone Volcanoes?

Back

Volcanoes built by thick lava that is thrown high into the air and falls as chunks or cinders.

Front

What is an island chain?

Back

A line of volcanic mountains, such as the Hawaiian Islands.

Front

What is lava?

Back

Magma that has reached the Earth's surface.

Front

What is magma?

Back

Molten rock located beneath the Earth's surface.

Front

What is a vent in relation to volcanoes?

Back

An opening in the Earth's crust where volcanic materials escape.

Front

What is a composite volcano?

Back

A type of volcano that is built up by layers of lava and ash.

Front

What is the difference between magma and lava?

Back

Magma is underground molten rock, while lava is magma that has erupted onto the surface.