Formation of Volcanoes

Which of the following most completely defines a volcano?

• a partly molten region of Earth's mantle where subducting rock is melted

• 
  a vent or hole in Earth's surface through which melted rock or ash erupt

• 
  a cone-shaped structure on land where pyroclastic material is ejected

• 
  a ridge system between two diverging plates through which magma escapes 

_____ is the thickness of a liquid or its resistance to flow.

• Mafic

• Viscosity

• Felsic

• Liquefaction

When magma has a high viscosity, how is it most likely to erupt?

• explosively

• constantly

• quietly

• most likely will not erupt

Volcanoes are found along:

• convergent plate boundaries

• divergent plate boundaries

• Both A and B

• None of the above

Tags

NGSS.MS-ESS2-3

When two oceanic plates converge, it produces which type of volcanoes?

• Hotspot volcanoes

• Island arc volcanoes

• Mid-ocean ridge volcanoes

• Continental arc volcanoes

Tags

NGSS.MS-ESS2-3

Match the volcanic feature to the location where it formed.

• Intraplate Volcanism (hotspot)

• Hawaiian Islands

• Divergent Plate Boundary

• Mid-Atlantic Ridge

• Convergent Plate Boundary

• Cascade Mountains

Tags

NGSS.MS-ESS2-2

What process causes the volcanoes of the Hawaiian Islands to form?

• hotspots

• divergent boundaries

• subduction zones

• convergent boundaries

How long can the finest ash particles from a volcanic eruption remain in the atmosphere?

• between hours and days

• between days and weeks

• between weeks and months

• between months and years

Click the hotspot that is located on magma.

Tags

NGSS.MS-ESS2-1

NGSS.MS-ESS2-2

Click the hotspot that is located on lava.

Tags

NGSS.MS-ESS2-1

NGSS.MS-ESS2-2