Key Terms
More Key Terms
Fill-In-The-Blank
True/False
Essay
100
A break in Earth's crust where rocks have slipped past each other?
Fault
100
Scientists who study the forces that make and shape the planet Earth are called?
geologist
100
Heat transfer by the movement of a heated fluid is called _______?
convection
100
A rift valley forms along a convergent boundary on land.
False, divergent
100
Who came up with the idea of continental drift?
Alfred Wegener
200
Continental crust consists mainly of what type of rock?
granite
200
In the convection current of a pan of soup, the cooler, denser fluid does what?
sinks to the bottom
200
A _____ boundary is a place where two plates slip past each other?
transform
200
The supercontinent that began to break apart about 225 million years ago is called Antarctica?
False, Pangaea
200
Does the ocean floor continue to get bigger and bigger.
No, because subduction occurs.
300
Scientist rejected Wegener's theory beause he could not?
He could not explain what force pushes or pulls continents.
300
The transfer of energy through space is called?
radiation
300
The _______ is the part of the mantle that can bend like plastic?
athenosphere
300
As oceanic crust moves away from the mid-ocean ridge, it cools and becomes more dense.
True
300
Is rock closer to the mid-ocean ridge younger or older?
It is younger the closer you are to the mid-ocean ridge.
400
Subduction is?
the process by which oceanic crust sinks beneath trenches.
400
Who first proposed the theory of continental drift?
Alfred Wegener
400
The process that continually adds new material to the ocean floor is _________?
sea-floor spreading
400
Density is a measure of how much mass there is in a volume of substance.
True
400
What is radiation?
It is the transfer of energy through space.
500
Earth's lithosphere is broken into seperate sections called?
plates
500
What erupts through the valley of the mid-ocean ridge?
molten material
500
Fossils of tropical plants found on an island in the Arctic Ocean are evidence for Wegener's hypothesis of ____?
continental drift
500
The lithosphere includes all of the core and part of the mantel.
False, crust
500
Explains what sets convection currents into motion?
Heating and cooling of a fluid causes it to rise and fall creating a circular motion