Volcanoes

Front

What is molten rock that has reached the Earth's surface?

Back

Lava

Front

What is the difference between magma and lava?

Back

Magma is found below the surface, while lava is found above the surface.

Front

What is molten rock that has formed deep within the Earth?

Back

Magma

Front

At which two types of plate boundaries do most volcanoes occur?

Back

Convergent with subduction and divergent boundaries.

Front

Why does magma tend to rise to the surface?

Back

It is less dense than the surrounding material.

Front

What is a volcano?

Back

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

Front

What is the term for a volcanic eruption that is characterized by explosive activity?

Back

Plinian eruption.

Front

What is the term for the molten rock beneath the Earth's surface?

Back

Magma.

Front

What is the term for the process of magma cooling and solidifying?

Back

Crystallization.

Front

What type of lava is known for its smooth, ropy surface?

Back

Pahoehoe.