Volcano Unit Exam Review

What is the spread of lava as it pours out of a vent?

• magma chamber
• pipe
• lava flow
• crater

What provides the force that causes magma to erupt to the surface?

• the silica in the magma
• dissolved gases trapped in the magma
• gravity in the lithosphere
• the density of the magma

This is the name for the chain of volcanos around the edge of the Pacific Plate.

• Circle of Fire

• Ring of Lava

• Ring of Fire

• Pacific Ring

Tags

NGSS.MS-ESS2-3

NGSS.MS-ESS3-2

A volcano that is made from alternating layers of lava and pyroclastic material

• a shield volcano

• a cinder cone volcano

• a composite volcano

• fissure eruption

Volcanoes that are NOT found at plate boundaries occur in the middle of plates in areas called ___________. 

• hot spots
• mid-ocean ridges
• fissure volcanoes
• shield volcanoes

Tags

NGSS.HS-ESS2-3

hardened lava with a stringy, ropey texture

• Pahoehoe

• A'A'

• Z'Z'

• Magma

Effusive eruptions occur with...

• low gas, low viscosity

• high gas, high viscosity

• low temp, high viscosity

• low temp, low viscosity

Tags

NGSS.MS-PS1-4

Explosive eruptions occur with...

• high temp, low viscosity

• high temp, high viscosity

• high gas, high viscosity

• low gas, low viscosity

The long tube in the ground that connects the magma chamber to Earth's surface is called the _____________.

• Crater

• Pipe

• Vent

• Magma Chamber

Once magma reaches the Earth's surface it is called.......

• Silica

• Lava

• Rock

• Molten