Show:
PARTS
VOLCANOES
MAGMA
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VOCAB
100
This is the place where magma collects underground?
What is magma chamber.
100
Runny lava is found at what type of plates?
What is Oceanic plates
100
Magma that has reached the Earth's surface is called?
What is lava
100
A volcano that is erupting, has erupted recently, or will erupt soon is called a __________ volcano.
What is active
100
A bowl shaped volcanic feature is called ______.
What is a caldera
200
This is the hole through which magma exits to the surface of the Earth.
What is vent.
200
If a volcano has high silica and high gas the volcano will most likely have what kind of eruption?
What is explosive.
200
If the magma is low in silica and high in gas you will have a _________________ eruption
What is fire fountain
200
The Pacific plate subducting under other surrounding plates causes volcanic activity in this region.
What is the Ring of Fire
200
This forms when a mound of magma forms in a caldera?
What is resurgent dome
300
This is the pipe located inside the Earth that magma travels up in a volcano.
What is conduit.
300
When volcanic Island chains are formed what is moving?
What is the plate moves over the hotspot.
300
If you decrease the amount of silica in magma then the magma will be _____________.
What is more runny.
300
A volcano that is not active or ready to erupt soon but may erupt again someday is called a ________ volcano.
What is Dormant
300
This forms when a caldera fills with lava.
What is lava lake
400
This is the cloud that forms above the volcano.
What is an ash cloud
400
If a volcano has quiet eruptions with low silica lava then a __________ type of volcano will probably form.
What is shield
400
If you increase the amount of silica in lava then the silica will be more ________.
What is thick and sticky.
400
The solid remains of an extinct volcano is called _____________.
What is volcanic neck.
400
Term used to describe hot melted rock that is located inside the Earth.
What is magma
500
The products of an eruption can build a mountainous _________.
What is volcano.
500
What Islands helped scientists determine that the Pacific plate is moving about 9 cm per year?
What is Hawaiian Island Chain.
500
Name 3 factors that affect whether or not solid rock in the mantle will melt.
What is temperature, Pressure lowers, water is present
500
A volcano that can no longer erupt is said to be ________.
What is extinct.
500
What is the difference between lava and magma?
Lava is hot molten rock on the surface of the Earth, while magma is hot molten rock below the surface of the Earth.