Front

What is a volcano?

Back

Structures that form on the Earth’s crust after molten material reaches the Earth’s surface

Front

How much of the Earth did volcanoes create?

Back

80%

Front

Where do most of the 1,500 volcanoes on Earth occur?

Back

Pacific Ring of Fire

Tags

NGSS.MS-ESS3-2

Front

Where is a volcano most likely to form?

Back

On a convergent plate boundary

Tags

NGSS.HS-ESS1-5

NGSS.HS-ESS2-1

Front

Why does magma force its way to the surface?

Back

It becomes less dense than the rock around it

Front

Where do most of the eruptions occur on a divergent boundary?

Back

Below the water

Front

What are hot spots?

Back

Areas where eruptions occur away from plate boundaries

Front

Volcanoes that have erupted in the last 10,000 years are what type of volcano?

Back

Active

Front

Volcanoes that have not erupted in the last 10,000 years but are expected to again are what type of volcano? Options: Active, Dormant, Extinct, Dead

Back

Dormant

Front

Volcanoes that have not erupted in the last 10,000 years and are not expected to again are what type of volcano? Options: Active, Dormant, Extinct, Dead

Back

Extinct