Earthquakes & Earth's Interior
Volcanoes
Continental
Drift
Plate tectonics
Theory of
Plate Tectonics
100
Vibration of Earth produced by the rapid release of energy.
What is an earthquake?
100
three main types of volcanoes
What are shield volcanoes, cinder cones, and composite cones ?
100
He proposed the theory of continental drift
Who is Alfred Wegener
100
This is the process that continually adds new material to the ocean floor
What is sea-floor spreading
100
A break in Earth's crust where rocks have slipped past each other
What is a fault
200
This boundary separates the crust from the underlying mantle
What is Moho ?
200
Repeated eruptions of lava or pyroclastic material often spreaded by long inactive periods eventually build a mountain
What is a volcano ?
200
These three types of evidence helped support the theory of Continental Drift
What is evidence from land features, from fossils, and climatic zones
200
This is the three main types of boundaries
What is convergent,divergent, and transform fault boundaries?
200
Earth's lithosphere is broken into separate sections called
What are plates
300
The four main layers of the Earth
What are the crust, mantle, outer core, and inner core?
300
Substance's resistance to flow
What is vviscosity?
300
Supercontinent
What is Pangaea?
300
This is the process that occurs when one oceanic plate is forced down into the mantle beneath a second plate
What is subduction zone?
300
This type of boundary is a place where two plates slip past each other
What is a sliding boundary
400
records earthquake waves
What is seismographs ?
400
most volcanoes are fed magma through conduits; connects a magma chamber to the surface
What are pipes ?
400
a hypothesis that originally proposed that the continents had once been joined to form a single supercontinent
What is Continental Drift?
400
the uppermost mantle, along with the overlying crust, behaves as a strong, ridgid layer
What is lithosphere?
400
Deep faulted structures that are found along axes of some segments
What are rift valleys?
500
slippage along a break in Earth's crust
What is the cause of an earthquake?
500
The primary factors that determine wheter a volcano erupts violently or quietly include...
What are magma compopsition, magma temperature, and the amount of dissolved gases in magma?
500
The reason scientists rejected Wegener's theory was because he could not do the following
What is explain how the continents were capable of moving across the globe
500
supports the idea that the plates move over Earth's surface
What is hot spot?
500
Rocks that show the opposite magnetism
What is reverse polarity?
M
e
n
u