Volcanoes
He topographic feature which allows molten rock and hot gases to escape from within the earth.
What is a volcano?
A monstrous wave caused by earthquakes.
What is a tsunami?
A scientist who studies the structure of the earth.
What is a geologist?
Molten rock that has reached the earths surface.
What is lava?
A volcano that has erupted recently.
What is an active volcano?
The specific feature of a volcano created when trapped gases blast through the earth surface.
What is a vent?
A break that appears at the boundary between two moving masses of rock.
What is a fault?
And underwater mountain range formed at divergent boundaries.
What are the mid-oceanic ridges?
Molten rock lying just below the earth surface.
What is magma?
The study of earthquakes.
What is seismology?
A volcano that has been active but has not had a recent eruption.
What is a dormant volcano?
The point underground where in earthquake begins.
What is the focus?
The temperature of rocks as you go deeper into the earth changes in this way.
What is increases?
A region running along the edge of the pacific ocean known for having many volcanoes.
What is the Ring of Fire?
A unit which measures the strength of an earthquake.
What is the magnitude?
A type of volcano that produces lava fountain and fire curtains.
What is a Hawaiian Volcano?
The point at ground level directly above the focus of an earthquake.
What is an epicenter?
A depression found at the top of a volcano.
What is a crater?
Smaller fragments of molten rock that solidify almost instantly.
What is tephra?
A volcano that has not erupted in recorded history.
What is an extinct volcano?
A volcano characterized by hot clouds of gas and dust that it expels.
What is a Plinian Volcano?
A tremble or shake of the earth’s crust.
What is an earthquake?
The boundary between the earth’s crust and it’s mantle.
What is Moho discontinuity?
The names of three types of volcanoes based on their formation and structure.
What are shield cinder cone and composite volcanoes?
Holes or cracks which serve as a scape vents for underground gases.
What are fumaroles?