Volcano Trivia Quiz-2
32 Questions
| Attempts: 1072
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What is the name of magma that has escaped onto Earth's surface
About This Quiz
If you fancy yourself a geology fanatic and are up to answering specifically designed questions that gauge your knowledge on the subject, try out this quiz. It is a simple set of questions to jot your mind up.
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- 2.
Hot melted rock within the earth is called?
- 3.
What is a thick liquid that flows out of the volcanoes called?
- 4.
What is the outside layer of the earth called?
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Mantle
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Crust
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Outer Core
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Inner Core
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Land
Correct Answer
A. Crust -
- 5.
This is where the volanic materials that erupt are stored?
Correct Answer
Magma Chamber - 6.
What is an opening in Earth's surface through which lava, hot gases, and rock fragments erupt?
Correct Answer
Volcano - 7.
The sliding of one plate under another is called what?
Correct Answer
subduction - 8.
Which is thicker, the continental crust or the crust beneath the ocean?
Correct Answer
Continental crust - 9.
In a convection current, ___________ material rises, while ____________ material sinks
Correct Answer
Hot, Cold - 10.
There are about how many active volcanoes?
Correct Answer
500 - 11.
The earth's crust is made of about how many sections of solid rock, each of which is called a plate
Correct Answer
20 - 12.
A volcanic ______ is an opening in the Earth's crust through which lava, ash, and gases erupt.
Correct Answer
vent, VentExplanation
Volcanic vents are the conduits through which molten rock and other volcanic materials reach the Earth's surface during an eruption. They can vary in size and shape, from small fissures to large craters, and play a crucial role in the formation of volcanic landscapes.Rate this question:
- 13.
What forms the black sand beaches of Hawaii
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Shattered lava - 14.
What is the outer core made of?
Correct Answer
Melted iron and nickel - 15.
The plates that cover the earth are between how may kilometers thick?
Correct Answer
70 to 150 - 16.
What two things burst through an opening in the top of the volcano
Correct Answer
Gas & Ash - 17.
______ is molten rock found beneath the Earth's surface.
Correct Answer
Magma, magmaExplanation
Magma is a mixture of molten or semi-molten rock, volatiles, and solids that is found beneath the Earth's surface. It is typically generated by the melting of the Earth's mantle or crust. When magma erupts onto the surface, it is called lava.Rate this question:
- 18.
What happens when a hot spot stays put but the plate above it keeps moving
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a chain of volcanic islands form - 19.
How thick is the mantle
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Nearly 3000 kilometers thick - 20.
Why does magma rise slowly through the mantle?
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Because the magma has high pressure and low density - 21.
Why does the earth's picture change
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Because the plates are always slowly moving - 22.
What happens as magma in a magma chamber forces its way up thru weak spots of the crust
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It carves a wide channel in the solid rock - 23.
What is happening to the floor of the Atlantic Ocean due to movement of the plates under the ocean?
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The floor of the ocean is splitting - 24.
What is the inner core made of?
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Solid ball of white hot iron and nickel - 25.
What is the ring of fire and which plate does it surround?
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A giant ring of volcanoes that surrounds the Pacific Plate - 26.
What might happen to the new volcano Loihi, near the Hawaiin Islands
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If it continues to grow, it will become a new island - 27.
How does the great pressure of the ocean water change the rising magma?
Correct Answer
Changes it into harmless chunks of rock called pillow lavaD - 28.
What might happen if the central vent of a volcano becomes blocked
Correct Answer
The magma might burst thru a weak spot in volcano's side - 29.
Describe how volcanoes form.
- 30.
How is it different when a volcano erupts under water as opposed to when it erupts above ground?
- 31.
Describe the four different ways the Earth's plates move
- 32.
What is the Ring of Fire and where is it located
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Current Version
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Jan 21, 2025Quiz Edited by
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Nov 05, 2009Quiz Created by
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