WorksheetsVolcanoes Part 2
Total questions: 20
Worksheet time: 5hrs 0mins
An extinct volcano is a volcano that...
Has an empty magma chamber that is no longer filling up. It no longer has the ability to erupt
Has a close to full magma chamber but the conduit is blocked
Currently in the process of erupting
Has a partially filled magma chamber and is still showing some signs of activity
An active volcano is a volcano that...
Has an empty magma chamber that is no longer filling up. It no longer has the ability to erupt
Has a close to full magma chamber but the conduit is blocked
Is in the process of erupting
Has some magma in its magma chamber and is still showing some signs of activity. Has erupted and is expected to erupt again
A hot spring is
a pool of magma
a crack in the earth where volcanoes form
a pool of water heated by magma
an abnormality that results in very acidic water
Which type of volcano is currently resting, but could erupt sometime in the future?
Active
Dormant
Extinct
Asynchronous
Hot molten rock that is within a volcano and still under the Earth's surface is called...
lava
magma
tephra
pyroclastic flow
Hot molten rock that flows over the side of a volcano and on the Earth's surface is called...
lava
magma
tephra
pyroclastic flow
The large depression at the summit of a volcano is called...
A crater
A conduit
A vent
The magma chamber
A pipe-like passage way that connects the magma chamber to the opening at the top of the volcano is called...
A crater
A conduit
A vent
A hole
What is a caldera?
A large depression in the ground that forms after a volcano has expelled all of the contents in its magma chamber and collapses
A large crater at the top of a mountain that acts as an early indicator that an eruption is immanent
A geothermally active lake that is surrounded by mountains on all sides
A large depression above the ground that forms after millions of years of erosion
Which of the following characterize a super volcano? (Select all that apply)
The volume of tephra that is expelled or has the potential to expel during an eruption
The size of the volcano has to extend over 10,000 feet into the air
Only shield volcanoes can be considered "super"
Have the ability to produce major eruptions that have global effects on climate and ecosystems
Only strato volcanoes can be considered "super"
The United States is home to the worlds most powerful super volcano. How would you characterize it?
Strato
Shield
Cinder cone
Caldera
The United States is home to the worlds most powerful super volcano. In which national park would you find this caldera?
Rocky Mountain National Park
Yellowstone National Park
Moab National Park
Garden of the Gods National Park
Where is Mount St. Helens located?
Oregon
Nebraska
Washington state
Washington DC
What is a volcano?
A weak spot in Earth’s crust where magma can come to the surface.
A mix of rocks, minerals, gases, and water from the mantle.
Hot semifluid rock that becomes solid rock as it cools off.
A special kind of mountain.
What is an explosive eruption?
When trapped gases build up pressure until they explode with incredible force.
When magma flows easily and erupts quietly with gases bubbling out gently and lava oozing out quietly.
What is a quiet eruption?
When magma flows easily and erupts quietly with gases bubbling out gently and lava oozing out quietly.
When trapped gases build up pressure until they explode with incredible force.
What is a lahar?
A slurry of water, mud debris and volcanic ash that forms from melting ice caps during an eruption that rushes down the side of a volcano
A smaller version of a tsunami
A unique type of rock slide that is only triggered when pumice and obsidian are present
Results from high tide
What is a volcanic vent?
An opening within the Earth's crust
A place that you decreases lithostatic pressure
A place that increases magma static pressure
A place where cyan left med bay
Do you think its likely that a volcano has the ability to erupt in an explosive fashion creating pyroclastic flow and sending ash everywhere, while also erupting steadily and spewing molten lava everywhere?
No, sounds like you are describing two different volcano types here.
Yes, sounds like something I totally believe, volcanoes are incredible.
I think it depends on the type of magma, I guess you could have two types of magma within the same volcano
Which of the following would be a probably early warning sign of an eruption and most concerning for bathers in a hot spring located on the side of a volcano?
Increased temperature of the hot spring that can lead to thermal shock
Decreased pH of the hot spring that can lead to sever burns or death
The release of carbon monoxide through the hot spring that can lead to suffocation
