Volcano types

Question 1

what is a volcano?

Answer 1

A volcano is an opening or vent in the earth’s surface through which molten material erupts and solidifies as lava.

Question 2

different types of volcanoes

Answer 2

Composite volcanoes 
(also called stratovolcanoes) 
Fissure volcanoes 
Hot spot volcanoes 
shield volcanoes 
caldera volcanoes

Question 3

composite volcano

Answer 3

found at destructive plate boundaries
Viscous (thick and sticky) magma
Slow moving lava after eruption
Explosive eruptions
Steep sided as layers build up with each eruption

Commonly found around the Ring of Fire around the Pacific Ocean

Question 4

fissure volcano

Answer 4

Found at constructive plate boundaries
Plates have separated to leave a rift or fissure
No cone is formed due to runny lava

Examples are found in Iceland and along the Mid-Atlantic Ridge

Question 5

hot spot volcanoes

Answer 5

Are not found at a plate boundary
Occur when the plate moves away from the source of magma
As the oceanic plate moves away from magma chamber, the volcano becomes extinct

Examples are the Hawaiian islands

Question 6

shield volcano

Answer 6

where two plates move away from one another.
very runny lava
gentle sides as the lava flows for long distances before it solidifies
no layers, as the volcano just consists of lava
less violent eruptions
shorter periods between eruptions

Question 7

caldera volcano

Answer 7

a large depression formed when a volcano erupts and collapses
forms shortly after the emptying of a magma… sinkhole. Formed through subsidence and collapse rather than an explosion or impact.