DEFINITIONS
PLATE TECTONICS
PLATE TECTONICS 2
VOLCANOES
CONVECTION CURRENTS
100
Before lava reaches the surface, the molten material is called
What is Magma?
100
This is the location of an earthquake
What is a fault?
100
The layer of Earth just below the lithosphere
What is asthenosphere?
100
Craters caused when volcanic eruptions cause a mountain to collapse
What are calderas?
100
Convection currents occur in this layer of Earth
What is mantle?
200
A result of an earthquake that causes buildings to sink into liquid mud and landslides of mud
What is liquefaction?
200
The location of earthquakes, mountains and volcanoes supports this theory
What is plate tectonics theory?
200
These materials make up Earth's core
What is nickel and iron?
200
Three major types of volcanic landforms
What are shield, cinder cone and composite volcanoes?
200
When warm fluids rise and cold fluids fall
What is a convection current?
300
The location directly above the surface where the earthquake took place
What is epicenter?
300
Wegener used 3 types of evidence to support the theory of plate tectonics
What ar4e mountain ranges, climate zones and fossils?
300
This built up California's landforms over millions of years
What is a plate tectonics?
300
Two ways that magma can reach Earth's surface
What are volcanoes and fissures?
300
The movement of a fluid that transfers heat
What is a convection current?
400
This happens when an earthquake displaces the ocean floor.
What is a tsunami?
400
The name of the supercontinent that existed million of years ago
What is Pangaea?
400
A major fault that runs through California
What is San Andreas Fault?
400
This material flows out of a volcano
What is lava?
400
Convection currents allow heat to be distributed within ____, ____, and_____
What are Earth's atmosphere, oceans, mantle?
500
A type of system used to locate an earthquake's epicenter
What is a seismogram?
500
A major geologic event that results from plate tectonics
What creates mountains, volcanoes, and earthquakes?
500
A ridge that divides the South American plate from the African plate
What is Mid-Atlantic Ridge?
500
Volcanoes can erupt ash and cause mud avalanches, which can bury cities or entire habitats
What are volcanic hazards?
500
A place where Earth's interior is being brought to the surface by a convection current
What is an oceanic divergent plate boundary?
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