At this part of the volcano, magma leaves the volcano's pipe.
What is the vent?
100
Molten rock after it exits the volcano.
What is lava?
100
Type of volcano that no longer erupts
What is an extinct volcano?
100
This is a volcano that is unlikely to erupt soon.
What is a dormant volcano?
200
This type of volcano is made up of layers of ash and lava.
What is a composite volcano?
200
This part of the volcano is the narrow tube that rises from the magma chamber to the vent.
What is the pipe?
200
Molten rock inside the volcano.
What is magma?
200
The Hawaiian Islands have many volcanoes - but Hawaii is not on the Ring of Fire. Hawaii's volcanoes are there because it is on a...
What is a hot spot?
200
This occurs when magma heats underground water before erupting in a beautiful display - like Old Faithful in the USA.
What is a geyser?
300
This type of volcano is a very steep cone-shaped hill or mountain.
What is a cinder cone volcano?
300
In this large underground area of the volcano, the magma bubbles...
What is the magma chamber?
300
Volcanoes typically occur at convergent plate boundaries where an oceanic plate dives below a continental plate. This area, where volcanoes are 'born', has a specific name...
What is a subduction zone?
300
Lava that is high in this substance is thick, sticky, and light colored.
What is silica?
300
One possible benefit volcanoes provide for people living near them.
What is fertile soil? What is tourism?
400
This is a hole left by the collapse of a volcanic mountain.
What is a caldera?
400
This is the bowl-shaped area that forms around the volcano's vent.
What is the crater?
400
This is an explosion of ash cinders and bombs from a violent volcanic eruption. It is responsible for most deaths in volcanic eruptions
What is a pyroclastic blast? (eruption/flow)
400
A broad, gently sloping volcanic cone of flat-dome shape, usually several tens or hundreds of square miles in extent.
What is a shield volcano?
400
The largest volcano in our solar system is on this planet.
What is Mars?
500
Define Subduction Zone. Where is it located?
Subduction occurs when two plates collide. The denser; heavier, plate slides under the other plate and becomes part of the mantle. Part of the subducting plate may melt and become a volcano!
500
What is a stratovolcano?
This type of volcano is associated with violent and powerful eruptions with steeply sloped sides. It has alternating layers of ash and lava, and is also known as a composite volcano.
500
List and describe the (3) types of lava produced at eruptions.
Pahoehoe: Low silica, thin and runny
Aa: High silica, thick and sticky
Pyroclastic flow: ashes, cinders, and bombs- highly explosive.
500
Steep sided volcano, loosely made cone, made out of cinders
What is a cinder cone volcano?
500
Why does magma rise?
Magma, the melted mantle, rises because it is filled with gas and is less dense than the solid rock around it.