Volcanoes

What is a volcano?

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

• The slow, steady spreading of the Earth's crust which releases a small amount of magma onto the surface

• The steady cycling of molten material in the mantle, where less dense material rises up to the surface

• The energy release that results from the sudden movement of blocks of rock at a plate boundary

Tags

NGSS.MS-ESS2-1

NGSS.MS-ESS2-2

How much of the Earth did volcanoes create?

• 60%

• 70%

• 80%

• 90%

Tags

NGSS.MS-ESS2-2

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

• Indian Ocean

• Himalayan Range

• Mediterranean Sea

• Pacific Ring of Fire

Tags

NGSS.MS-ESS2-3

Where is a volcano most likely to form?

• Wherever they want, you aren't their boss!

• On a convergent plate boundary

• On a divergent plate boundary

• On a transform plate boundary

Tags

NGSS.MS-ESS2-3

Why does magma force its way to the surface?

• It becomes less dense than the rock around it

• It becomes filled with bubbles which makes it rise up

• It becomes more dense than the rock around it

Tags

NGSS.MS-ESS2-1

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

• Below the water

• Above the water

Tags

NGSS.MS-ESS2-3

What are hot spots?

• Areas where the magma runs hotter than normal

• Extremely volatile eruptions

• Areas where eruptions occur away from plate boundaries

Tags

NGSS.HS-ESS2-3

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

• Dormant

• Extinct

• Active

• Dead

Volcanoes that have not erupted in the last 10,000 years but are expected to again are what type of volcano?

• Active

• Dormant

• Extinct

• Dead

Tags

NGSS.MS-ESS3-2

Volcanoes that have not erupted in the last 10,000 years and are not expected to again are what type of volcano?

• Active

• Dormant

• Extinct

• Dead