Layers of the Earth
Continental Drift
Sea-floor Spreading
Plate Tectonics
Plate Boundaries
100
The layer of the earth that is solid and made up of iron and nickel.
What is the inner core?
100
The name of the large landmass that once contained all of the continents.
What is Pangaea?
100
The type of plate boundaries where sea-floor spreading occurs.
What is divergent?
100
A description of the theory of plate tectonics.
What is the idea that the earth's crust is made up of plates that move?
100
The type of plate boundary where subduction occurs.
What is convergent?
200
The layer of the earth that is solid and made up of many kinds of rocks.
What is the crust?
200
The man who developed the theory of continental drift.
Who is Alfred Wegener?
200
The name of the area where molten material moves up through the ocean floor.
What is the mid-ocean ridge?
200
The force that moves the plates.
What are convection currents?
200
The name for 2 plate boundaries that are moving toward each other, and things that may occur there.
What is convergent, with earthquakes, volcanoes, mountains, and subduction?
300
The layer of the earth that is solid in the upper part, and liquid in the lower part, and is made up of iron, magnesium, and silicon compounds.
What is the mantle?
300
The reason the scientific community did not at first accept the Theory of Continental Drift.
What is he could not explain the force that made the continents move?
300
A detailed description of sea-floor spreading.
What is molten material comes up at the mid-ocean ridge, forming new rock, and pushing older rock out from the area.
300
3 pieces of evidence that support the idea of plate tectonics.
What are satellite images that record movement, plotting earthquakes and volcanoes, and landforms that are the result of plate movement?
300
The name for 2 plate boundaries that are moving away from each other, and things that may occur there.
What is divergent, with earthquakes and volcanoes?
400
The layer of the earth that is liquid and made up of iron and nickel.
What is the outer core?
400
State 2 pieces of evidence that support the Theory of Continental Drift.
What are...answers vary
400
The theory that was more widely accepted after evidence was developed to support sea-floor spreading.
What is the Theory of Continental Drift?
400
If sea-floor spreading is taking place, the reason the earth isn't getting bigger and bigger.
What is subduction?
400
The name of the boundary where 2 plates are moving in opposite directions, and things that could occur there.
What is transform, with earthquakes occuring?
500
The word that refers to the crust and upper mantle.
What is the lithosphere?
500
State 2 pieces of evidence that support the Theory of Continental Drift.
What are....answers vary
500
3 pieces of evidence that support sea-floor spreading.
What are molten material at the mid-ocean ridge, magnetic stripes, and rock samples tested for age.
500
An explanation of how the plates move.
What is the convection currents in the mantle, that are a result of differences in temperature and density in the earth's mantle?
500
A detailed description of subduction.
What is the process where a more dense plate moves below a less dense plate, and goes into the earth where it is destroyed?
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