This is a weak spot in the crust where magma comes to the Earth's surface.
What is a volcano?
100
This is the name for where most volcanoes are found
What is the Ring of Fire?
100
Volcanic eruptions create landforms made of the following materials.
What are lava, ash, and other materials.
100
Name an island arc.
What is(any of the following) Japan, Indonesia, Philippines, Aleutian Islands, Caribbean Islands?
100
The bowl-shaped area that forms around a volcano's central vent.
What is a crater?
200
These are the two types of boundaries where most volcanoes form.
What are convergent and divergent boundaries?
200
These are the two ways in which geologists classify the volcanic eruptions.
What are quiet and explosive?
200
Volcanic eruptions create the following three types of landforms.
What are shield volcanoes, cinder cone volcanoes,and composite (strato) volcanoes?
200
This is where the magma is stored in a volcano.
What is a magma chamber?
200
An area where magma melts through the crust in the
middle of a plate
What is a hot spot?
300
This chain of volcanoes form where two oceanic plates collide.
What is a volcanic island arc?
300
This type of volcanic eruption occurs when an explosive eruption hurls out ash, cinders, and volcanic bombs.
What is a pyroclastic flow?
300
This type of volcano is created when thin layers of lava pour out of a vent, and more layers of this lava harden on top of previous layers. Then the layers gradually build a wide, gently sloping mountain.
What is a shield volcano?
300
These are three types of hazards caused by volcanic eruptions.
What are (any three) lava flows sets fire, bury objects, kills people, kills animals, kills plants, buries towns, damages crops, clogs car and airplane engines?
300
Particles ranging from the size of a baseball to the size of a car
What are bombs?
400
This is the process where oceanic crust slides beneath continental crust and forms volcanoes on land
What is subduction?
400
Geologists use the following three terms to describe a volcano's stage of activity.
What are active, dormant, and extinct?
400
This type of mountain is formed by lava flows alternating with explosive eruptions.
What is a composite volcano/stratovolcano?
400
Sometimes magma is thick and sometimes it is thin. Name the reason or ingredient that makes this difference.
What is silica?
400
A molten mixture of rock-forming substances, gases and water from the mantle
What is magma?
500
This is how volcanoes change the Earth's surface.
What is they add land and put nutrients in the soil?
500
The reason why so many volcanoes occur along plate boundaries.
What is they occur when plates converge and bring the magma close to the surface and when plates diverge and open the earth for the magma to come up?
500
A volcano that is erupting or has shown signs that it may erupt in the future is called this.
What is active?
500
These are two differences between shield volcanoes and stratovolcanoes (composite).
What is (name 2) shield volcanoes are gently sloping and flowing lava, quiet eruptions and composite are steep sides and thick and sticky lava, and explosive eruptions?
500
An opening in the earth's surface where hot gasses and liquids from earth's interior are released