Classes of Volcanoes
Large amounts of fluid, runny lava gradually build up a dome-shaped mountain. The Hawaiian Islands are these type.
What is a shield volcano?
Melted rock
What is magma?
Any trembling or shaking of the earth's crust.
What is an earthquake?
The study of the earth and its structure.
What is geology?
The boundary between the earth's crust and its mantle.
What is the Moho discontinuity?
The study of caves.
What is speleology?
This volcano erupted many years ago, but is now inactive.
What is a dormant volcano?
Allows molten rock and hot gasses to escape from within the earth.
What is a volcano?
The strength of an earthquake.
What is magnitude?
Is made of solid rock.
What is the mantle?
A volcano that has not erupted in recorded history.
What is extinct?
This animal is designed by God to live either in a cave or above a cave.
What is a troglophile?
Formed by eruptions composed mostly of tephra which are small fragments of solidified lava. The Paricutin volcano is one of these.
What is a cinder cone volcano.
What is lava?
A break that appears at the boundary between two moving masses of rock.
What is a fault?
Scientists who study the structure of the earth.
What is a geologists?
This eruption expels hot clouds of gas and dust high into the atmosphere, forming ash clouds that may travel completely around the world.
What is a Plinian eruption?
This creature visits a cave regularly by must return to the surface for food.
What is a trogloxene?
A volcano that has recently erupted.
What is an active volcano?
Smaller fragments of molten rock that solidify almost instantly.
What are tephra?
Monstrous waves caused by earthquakes.
What are tsunamis?
The process by which new soil is formed as rocks crumble and break into smaller pieces.
What is weathering?
This volcanic eruption produces lava fountains or fire curtains.
What is Hawaiian?
The area surrounding a magnet in which the force of the magnet affects other objects.
What is a magnetic field?
Composed of both cinder and lava and have characteristics of cinder cone and shield volcanoes. Mount St. Helens is one of these.
What is a composite volcano?
A place where trapped gasses blast through the earth's surface.
What is a vent?
The point underground where an earthquake begins.
What is the focus?
Crust, mantle, core and inner core.
What are the layers of the earth?
This aspect of rocks increases with depth.
What is a temperature?
This part of the earth produces the earth's magnetic field.
What is the outer core?
The magma chamber of a volcano caves in and creates this.
What is a caldera?
This runs along the edge of the Pacific Ocean and is named for its many volcanoes.
What is the Ring of Fire?
The place at ground level that is directly above the focus.
What is the epicenter?
Natural acids slowly eat into a rock and break it apart.
What is chemical weathering?
These pieces of the earth's crust "float" like rafts on the upper mantle.
What are plates?
The ends of magnets.
What are poles?
A depression found at the top of a volcano.
What is a crater?
Holes or cracks which serve as escape vents for underground gasses.
What are fumaroles?
The study of earthquakes.
What is seismology?
The Moho discontinuity.
What is the boundary between the earth's crust and its mantle?
This volcano is characterized by hot clouds of gas and dust that it expels.
What is a Plinian eruption?
The magnetic field produced by the earth.
What is the magnetosphere?
A collapsed magma chamber.
What is a caldera?
A vent that allows molten rock and hot gasses to escape from within the earth.
What is a volcano?
The underground point of an earthquake.
What is the focus?
The mantle.
What is the earth's middle layer?
One is melted rock underground and the other is melted rock above the ground.
What are magma and lava?
Is created by the dissolving of underground rocks.
What is a solution cave?