Chapter 9 Test
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Last updated about 5 years ago
50 questions
2
Pillow lava
Pillow lava
2
Lava with a high viscosity
Lava with a high viscosity
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A shield volcano
A shield volcano
2
A large depression that forms when the magma chamber partially empties is a
A large depression that forms when the magma chamber partially empties is a
2
A dormant volcano
A dormant volcano
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Where are volcanoes most likely to form?
Where are volcanoes most likely to form?
2
Which of these would you expect to see during a non-explosive eruption?
Which of these would you expect to see during a non-explosive eruption?
2
If the water content of magma is high,
If the water content of magma is high,
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Which type of lava flows most like dripping wax?
Which type of lava flows most like dripping wax?
2
Cool, stiff lava that forms jumbled heaps of sharp chunks near the vent is called
Cool, stiff lava that forms jumbled heaps of sharp chunks near the vent is called
2
Pyroclastic material forms when
Pyroclastic material forms when
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The three main types of volcanoes are
The three main types of volcanoes are
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Most active volcanoes form
Most active volcanoes form
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The volcanoes of Hawaii and other places far from tectonic plate boundaries are known as
The volcanoes of Hawaii and other places far from tectonic plate boundaries are known as
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Which catagory of volcano is most likely to erupt in the near future?
Which catagory of volcano is most likely to erupt in the near future?
2
A tiltmeter is an instrument that measures
A tiltmeter is an instrument that measures
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Volcanoes are most likely to form
Volcanoes are most likely to form
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Lava that has a fluid, runny consistency probably
Lava that has a fluid, runny consistency probably
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Which kind of volcano is most likely to erupt soon?
Which kind of volcano is most likely to erupt soon?
2
Which kind of volcano will probably never erupt again?
Which kind of volcano will probably never erupt again?
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Repeated eruptions of lava create
Repeated eruptions of lava create
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Mt. Rainier and Mt. St. Helen's are
Mt. Rainier and Mt. St. Helen's are
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Magma forms deep in the Earth's crust and in the mantle where
Magma forms deep in the Earth's crust and in the mantle where
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Only about 5% of volcanoes on land form
Only about 5% of volcanoes on land form
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When infrared images show that an area is getting hotter, what is probably happening there?
When infrared images show that an area is getting hotter, what is probably happening there?
2
When a magma chamber empties, a(n) __________________ results.
When a magma chamber empties, a(n) __________________ results.
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Parts of tectonic plates that are located above mantle plumes are called ___________________.
Parts of tectonic plates that are located above mantle plumes are called ___________________.
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The molten rock inside a volcano is called __________________.
The molten rock inside a volcano is called __________________.
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Cool, stiff lava that forms jumbled heaps is called __________________.
Cool, stiff lava that forms jumbled heaps is called __________________.
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Craters, calderas and lava plateaus are volcanic _____________________.
Craters, calderas and lava plateaus are volcanic _____________________.
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A volcanically active place away from a tectonic plate boundary is a(n) ________________.
A volcanically active place away from a tectonic plate boundary is a(n) ________________.
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An area where tectonic plates collide is called a(n) _____________________.
An area where tectonic plates collide is called a(n) _____________________.
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One tectonic plate slides underneath another in a process called __________________.
One tectonic plate slides underneath another in a process called __________________.
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A set of deep cracks between tectonic plates is called a(n) ____________________.
A set of deep cracks between tectonic plates is called a(n) ____________________.
2
A _______________ is like an underground lake of molten rock.
A _______________ is like an underground lake of molten rock.
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Once magma flows onto the Earth's surface, it is called ________________.
Once magma flows onto the Earth's surface, it is called ________________.
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A landform called a _______________ is capable of great destruction and great creation.
A landform called a _______________ is capable of great destruction and great creation.
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Scientists often use a global positioning system, or __________________, to detect changes in a volcano's shape.
Scientists often use a global positioning system, or __________________, to detect changes in a volcano's shape.
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Changes in temperature show up in infrared _______________ images.
Changes in temperature show up in infrared _______________ images.
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Changes in temperature, slope or earthquake activity indicate changes in a volcano's ____________________.
Changes in temperature, slope or earthquake activity indicate changes in a volcano's ____________________.
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A set of deep cracks between tectonic plates.
A set of deep cracks between tectonic plates.
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Columns of rising magma.
Columns of rising magma.
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Where tectonic plates separate.
Where tectonic plates separate.
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Where tectonic plates collide.
Where tectonic plates collide.
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Underwater volcanoes and mountains.
Underwater volcanoes and mountains.
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A volcanically active area that is not near a tectonic plate boundary.
A volcanically active area that is not near a tectonic plate boundary.
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Pours out quickly and forms a brittle crust.
Pours out quickly and forms a brittle crust.
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Forms from underwater eruptions.
Forms from underwater eruptions.
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Oozes from a volcano and does not travel far.
Oozes from a volcano and does not travel far.
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Flows slowly and has a glassy surface.
Flows slowly and has a glassy surface.