Paleomagnetism
Convection in the Mantle
Continental
Drift
Sea-Floor
Spreading
Theory of
Plate Tectonics
100
The study of the earth's magnetic pole reversal?
What is paleomagnetism?
100
These are the three types of heat transfer
What are convection, conduction, and radiation.
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
Scientists used the pattern of alternating normal and reversed polarity in rocks to create _______________.
What is geomagnetic reversal time scale?
200
The transfer of energy through space is called ___________, and the heat transfer by the movement of a theated fluid is called ____________.
What are radiation and convection
200
These three types of evidence helped support the theory of Continental Drift
What is evidence from land features (landforms), from fossils, and climatic zones
200
This is what erupts through the valley of the mid-ocean ridge
What is molten material
200
Earth's lithosphere is broken into separate sections called
What are plates
300
When a rock has magnetic particles aligned towards the north pole
What is normal polarity?
300
During the convection current process in a boiling pot of soup, this is what the the cooler, denser fluid does
What is sinks to the bottom of the pan
300
Scientists who study the forces that make and shape the planet Earth are called
Who are geologists
300
This is the process by which oceanic crust sinks beneath trenches and back into the mantle
What is subduction
300
This type of boundary is a place where two plates slip past each other
What is a sliding boundary
400
Magnetic patterns on the ocean floor were puzzling because they
What is showed alternating bands of normal and reversed polarity.
400
This is the measure of how much mass there is in a volume of a substance
What is density
400
Fossils of tropical plants found on an island in the Arctic Ocean are evidence for Wegener's hypothesis of
What is Continental Drift
400
These are the three types of evidence that support the theory of sea floor spreading
What are eruptions of molten material, magnetic stripes in the rock of the ocean floor (pattern of rocks), and the age of rocks from drilling samples.
400
The theory of plate tectonics states that pieces of Earth's lithosphere are in slow, constant motion, driven by convection currents in the mantle. This theory explains the ________,________, and __________, of Earth's plates.
What are the formation, movement, and subduction
500
The study of paleomagnetism was key in proving Wegener’s hypothesis because
What is it provided evidence of sea-floor spreading?
500
These three things combine and help set convection currents into motion
What are temperature (heating & cooling of a fluid), changes in density, and the force of gravity
500
The reason scientists rejected Wegener's theory was because he could not do the following
What is explain what force pushed or pulled the continents
500
This explains and lists in detail the process of sea-floor spreading.
What is 1st the molten material rises from the mantle and erupts through a mid-ocean ridge, 2nd the molten material then spreads out pushing older rock to both sides of the ridge, 3rd new material (rock) is added to the ocean floor.
500
These are the three kinds of plate boundaries
What are spreading boundaries (divergent), colliding boundaries (convergent), and sliding boundaries (transform)
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