Volcanoes

When a volcano empties its magma chamber and the top collapses inward, what forms as a result?

• Bigger magma chamber

• Crater

• Vent

• Caldera

How much of the Earth did volcanoes create?

• 60%

• 70%

• 80%

• 90%

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

• Below the water

• Above the water

What are hot spots?

• Areas where the magma runs hotter than normal

• Extremely volatile eruptions

• Areas where eruptions occur away from plate boundaries

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

How would you describe highly viscous magma?

• Flowing & hot

• Chunky & gobby

• Thin & runny

• Thick & sticky

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

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

• Aa

• Lava

• Magma

• Pahoehoe

As magma rises towards the surface it collects in a 'room' called a _____ _____ . 

• magma chamber

• side vent

• main vent

• lava chamber

Tags

NGSS.MS-ESS2-1

Vocanoes are found...

• on land

• under water

• on islands

• all of the above

Tags

NGSS.MS-ESS3-2

What is a volcano?

• A mountain that has lava all over it 

• A giant hill filled with magma

• A long high sea wave 

• A hole in the Earth where magma erupts