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VOLCANO BASICS
OH THE PLACES WE'LL GO
ALL ABOUT MAGMA
ANATOMY OF A VOLCANO
TYPES OF VOLCANOES
100
These volcanoes have erupted in the last century, so they are classified as
What is active
100
Most volcanoes form near these tectonic areas
What is plate boundaries or the Ring of Fire
100
Magma that reaches Earth's surface
What is lava
100
The opening where magma flows out of the volcano
What is vent
100
This volcano has steep sides made of tephra
What is cinder-cone
200
A volcano that has not erupted in the last century
What is dormant
200
Unusually hot areas in the mantle where magma rises to the surface
What are hot spots
200
This mineral affects the thickness of magma
What is silica
200
A bowl-shaped depression that forms around the vent of a volcano
What is a crater
200
Mt. St. Helens in Washington erupted violently in 1980 is classified as this type of volcano
What is composite
300
Molten rock beneath the Earth's surface
What is magma
300
Volcanoes that form where the Earth's plates move apart
What is divergent boundaries
300
This determines whether an eruption is quiet or explosive
What is the composition of the magma
300
A large, deep depression caused by the collapse of the top of the volcano
What is a caldera
300
Mauna Loa in Hawaii is this type with gently sloping sides
What is a shield volcano
400
All of the processes associated with the discharge of magma & gases
What is volcanism
400
Volcanoes form here where the Earth's plates come together
What are convergent boundaries
400
Basaltic magma produces this type of eruption
What is a quiet eruption
400
Ash & cinders blown out of a volcano
What is tephra
400
The most active volcano in the world
What is Kilauea
500
A substance's internal resistance to flow
What is viscosity
500
This zone is formed when oceanic crust slides under a continent
What is subduction zone
500
Rhyolitic magma produces this type of eruption
What is an explosive eruption
500
Rapidly moving clouds of tephra mixed with hot, suffocating gases
What are pyroclastic flows
500
These volcanoes have both quiet & explosive volcanoes
What is a composite volcano