Volcanoes

Front

What type of volcano has erupted in the last 10,000 years?

Back

Active volcano

Front

What type of volcano has not erupted in the last 10,000 years but is expected to erupt again?

Back

Dormant volcano

Front

What is a characteristic of hot spots?

Back

Regions with unusually high volcanic activity

Front

How would you describe highly viscous magma?

Back

Thick & sticky

Front

Why does magma force its way to the surface?

Back

It becomes less dense than the rock around it.

Front

What is a volcano?

Back

A rupture in the Earth's crust where molten lava, ash, and gases escape.

Front

What are the three main types of volcanoes?

Back

Shield, composite, and cinder cone volcanoes.

Front

What is the difference between magma and lava?

Back

Magma is molten rock beneath the Earth's surface; lava is magma that has reached the surface.

Front

What is a caldera?

Back

A large depression formed when a volcano erupts and collapses.

Front

What causes volcanic eruptions?

Back

The buildup of pressure from gases and magma beneath the Earth's surface.