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WorksheetsVolcanic Features: WBS
Total questions: 62
Worksheet time: 33mins
Tall, cone-shaped mountains in which layers of lava alternate with layers of ash
Cinder Cone volcano
Shield volcano
Composite volcano
Caldera
This wide, gently sloping mountain forms as lava pours out of the vent and hardens on top of previous layers.
Caldera
Cinder cone volcano
Composite volcano
Shield volcano
Repeated floods of molten material can form high, level plateaus called...
prairie plateaus
magma plateaus
lava plateaus
dome plateaus
Magma that forces itself across rock layers and hardens is called a _________.
volcanic neck
sill
dike
batholith
Magma that squeezes between horizontal rock layers and hardens is called a ______.
volcanic neck
dike
sill
lava plateau
From which of these does a batholith form?
a small body of magma
a large body of magma
a small body of lava
a large body of lava
Magma becomes lava when it reaches a volcano's ______.
Vent
Crater
Chamber
Mantle
In a volcano, magma collects in a packet called ________.
Magma flow
Magma chamber
Magma pipe
Hot spot
A string of volcanic islands called __________ can be formed along a trench.
A boundary plate
An island arc
A hot spot
An old denser plate
Lava that forms creases and loops when it hardens is called _________.
A'a
Pahoehoe
Silica
Lahar
A ______ is a duct connecting the magma chamber and the outside of the volcano.
Vent
Crater
Lava flow
Volcanic cone
Is the process by which an ocean floor sinks beneath an ocean trench and into the mantle.
Subduction
Hot spot
Caldera
Volcanism
Refers to the movement of lava as it flows out from the vent.
Lava flow
Magma flow
Pahoehoe
A'a
An opening on the Earth's crust through which hot molten rock flows out from deep inside the Earth.
Volcano
Fault line
Fold
Crater
Comprises the many volcanoes that rim the Pacific Ocean
Ring of Fire
Mid-Atlantic Ridge
Eurasian-Melanesian Mountain Belt
Pacific Rim
Are long, underwater mountain ranges that sometimes have rift valleys down their centers.
Ridges
Oceanic Plate
Trench
Subduction Zone
A volcano that had its last eruption more than 10,000 years ago.
Extinct Volcano
Sleeping Volcano
Active Volcano
Quiet Volcano
Is a substance formed by the chemical combination of oxygen and silicon atoms.
Silica
Silica Oxide
Silica Acid
Magma
Where can you find the convection (magma) currents?
inner core
outer core
asthenosphere
solid upper mantle
The material of shield volcanoes is ...
basalt
andesite
dolomit
limestone
Which term is it? The main tube or pathway for the magma to reach the surface.
crater
caldera
magma chamber
conduit or main vent
This forms when magma hardens in a volcano's pipe and the surrounding rock later wears away.
a dike
a sill
a lava plateau
volcanic neck
Shield volcanoes have lava with a high silica content.
True
False, low silica content
False, silica content doesn't change the way volcanoes form
Mount Saint Helens in Washington State is an example of a
shield volcano
cinder cone
composite volcano
batholith
What type of lava is this?
'A'a
Pahoehoe
What type of lava is this?
'A'a
Pahoehoe
What type of lava is this?
'A'a
Pahoehoe
What type of lava is this?
'A'a
Pahoehoe
What type of lava is this?
'A'a
Pahoehoe
What type of lava is this?
'A'a
Pahoehoe
What type of lava is this?
'A'a
Pahoehoe
What type of lava is this?
'A'a
Pahoehoe
What type of volcano is this?
Fissure
Shield
Dome
Stratovolcano/ Composite
What type of volcano is this?
Fissure
Shield
Dome
Stratovolcano/ Composite
What type of volcano is this?
Fissure
Ash Cinder
Dome
Stratovolcano/ Composite
What type of volcano is this?
Fissure
Ash Cinder
Dome
Stratovolcano/ Composite
Shield Volcano
Which type of igneous intrusion forms parallel or in between the preexisting layers of rock?
Sill
Dike
Batholith
Stock
What is the following feature seen at letter A?
Sill
Batholith
Stock
Laccolith
#4 is a...
batholith
laccolith
dike
sill
#3 is a...
batholith
laccolith
dike
sill
#2 is a...
batholith
laccolith
dike
sill
