Drifting Continents
Sea Floor Spreading
Plate Tectonics
Plate Boundaries
Causes of Plate Motion
100
What is matching coastlines.
Early mapmakers thought continents might have moved based on their observations of
100
What is A magnetic reversal
A change in Earth’s magnetic field
100
What is plate boundaries.
Tectonic plates interact at places called
100
What is convergent boundaries.
Places where tectonic plates come together are called
100
What is ridge push.
When the weight of an elevated ridge pushes an oceanic plate toward a subduction zone.
200
What is all of Earth’s continents
Pangaea was an ancient supercontinent made up of
200
True.
True or False.The study of the magnetic record preserved in Earth’s rocks is called paleomagnetism
200
What is divergent boundaries
Places where tectonic plates move apart
200
What is type of crust involved
Convergent boundaries are classified according to the
200
What is slab pull.
Tectonic process associated with convection currents in Earth's mantle that occurs as the weight of the subducting plate.
300
What is land dwelling animals
Fossil evidence that supported Wegener’s idea of continental drift included
300
True.
True or False. Earthquake activity and volcanism are common along ocean ridges.
300
plate tectonics
Theory states that Earth’s crust and rigid upper mantle move in different directions and at different rates over Earth’s surface.
300
What is basalt.
Oceanic crust is made mostly of
300
What is a mountain range.
Which feature is associated with a continental-continental plate boundary?
400
What is once located closer to the equator.
Coal beds in Antarctica indicated to Wegener that this continent was
400
True.
True or False. Paleomagnetism is the study of the magnetic record
400
What is New ocean crust forms
What happens along a divergent boundary
400
What is subduction zone.
What feature forms when two oceanic plates converge?
400
What is convection currents.
The transfer of energy via the movement of heated matter.
500
What is he couldn’t explain how or why the continents moved.
Most scientists at the time rejected Wegener’s hypothesis of continental drift because he
500
What is seafloor spreading.
New ocean crust is formed at ocean ridges and destroyed at deep-sea trenches.
500
What is on the seafloor
Where are most divergent boundaries found?
500
what is a transform boundary.
Which tectonic plate boundary do plates slide horizontally past each other?
500
What is a rift valley
What landforms results from divergence of continental crust?
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