Earth's Interior
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).
These are the three types of heat transfer
What are convection, conduction, and radiation.
He proposed the theory of continental drift
Who is Alfred Wegener
This is the process that continually adds new material to the ocean floor
What is sea-floor spreading
Where do the plates go when too much crust is produced?
The asthenosphere
The transfer of energy through space is called ___________, and the heat transfer by the movement of a heated fluid is called ____________.
What are radiation and convection
These three types of evidence helped support the theory of Continental Drift
What is evidence from land features (landforms), from fossils, and climatic zones
This is what erupts through the valley of the mid-ocean ridge
What is molten material
Earth's lithosphere is broken into separate sections called
What are plates
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.
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
Scientists who study the forces that make and shape the planet Earth are called
Who are geologists
This is the process by which oceanic crust sinks beneath trenches and back into the mantle
What is subduction
This type of boundary is a place where two plates slip past each other
What is a transform boundary
The continental crust consists mainly of this type of rock.
What is granite
This is the measure of how much mass there is in a volume of a substance
What is density
Fossils of tropical plants found on an island in the Arctic Ocean are evidence for Wegener's hypothesis of
What is Continental Drift
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.
What do we call the upper later of the mantle?
Asthenosphere
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.
Give an example of radiation, conduction and convection
Answers Vary
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
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.
These are the three kinds of plate boundaries
Convergent, divergent, and transform