Earth's Interior
Convection in the Mantle
Continental
Drift
Sea-Floor
Spreading
Theory of
Plate Tectonics
100
These two main types of evidence (with example) help geologists learn about the Earth's interior
What are direct (rock samples) and indirect evidence (seismic waves caused by earthquakes).
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
This is a result from a force pressing on an area, and it increases as you go deeper into the Earth.
What is pressure
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
These are the four main layers of the Earth traveling from the outside of the Earth to the innermost part of the Earth
What are the crust, mantle, outer core, and inner core.
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
The continental crust consists mainly of this type of rock.
What is granite
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
This is the major difference between the inner core and the outer core
What is the outer core is made of molten material, while the inner core is solid.
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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