Lava is magma that flows out onto Earth's surface.
100
What is a stratovolcano (composite volcano)
What is a conical volcano consisting of layers of solid lava flows mixed with layers of other rock.
100
What is Magma?
Molten rock beneath the earth's surface.
100
Where do most volcanoes occur?
Most volcanoes, like most earthquakes, occur along the boundaries between shifting tectonic plates.
100
What are active volcanoes?
Active volcanoes are the volcanoes that erupt constantly.
200
What are magma chambers?
Magma chambers are reservoirs from which volcanic materials erupt.
200
What is cinder cone volcano
What is doesn’t have any horizontal layers, and is instead a steep conical hill of tephra (volcanic debris) that accumulates around and downwind from the vent.
200
What is a Volcano?
What is a mountain or hill, typically conical, having a crater or vent through which lava, rock fragments, hot vapor, and gas are being or have been erupted from the earth's crust.
200
Why does the rock in the mantle melt?
As the tectonic plate moves under another (subduction zone), the rock in the mantle melts and becomes magma.
200
What are dormant volcanoes?
These volcanoes have become inactive, but people are not certain that they will not erupt again.
300
what is a vent?
Openings through which volcanic materials erupt are called vents.
300
What is shield volcano
What is a type of volcano built entirely or mostly from fluid lava vents. They are named like this because when viewed from above, you can see just how massive and imposing they are – like a warrior’s shield.
300
What is a hot spot?
A region of volcanic activity in the middle of a tectonic plate.
300
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.
300
What are Extinct Volcanoes?
What is Volcanoes that have not erupted in recorded history are considered to be extinct volcanoes.
400
What are craters?
Craters are bowl-shaped depressions. Forceful explosions may blow out the tops of mountains to form craters.
400
What is Complex volcano
What is Multiple features
400
what is the Ring of Fire and where is it located?
What is A zone of frequent earthquakes and volcanic eruptions that encircles the Pacific Basin.
400
How do hot spots form new land? Name a landform created by hot spots.
What is Hot spots erupt and release magma. As magma comes out it becomes lava and hardens into landforms.
Hawaiian islands are created by hot spots.
400
How do the types of volcanic eruptions differ?
Active: erupt constantly
Dormant: have become inactive but might erupt in future
Extinct: have not erupted within recorded history