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20 Cards in this Set

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  • Back
What is a plateau?
An area of raised, flat land
How could Earth's outer core be described?
very dense liquid
Where are Earth's tectonic plates located?
They float on top of the lower mantle.
What force moves Earth's tectonic plates?
convection in the mantle
What part of Earth contains most of Earth's mass?
the mantle
What makes up the lithosphere?
Earth's crust and the solid part of the mantle
If a scientist found a certain fossil on the eastern coast of South America, how could the fossil be used to support the theory of continental drift?
The fossil would need to be matched with almost identical fossils found on the western coast of Africa.
According to the theory of plate tectonics, what may form where plates move together?
mountains
About how far away from each other do the North American Plate and the Eurasian Plate move each year?
2 centimeters
Why do most major earthquakes in the United States occur in California and Alaska?
These states are located on a plate boundary.
Where are most volcanoes located?
On the ocean floor
What do seismographs detect?
ground movement as it occurs
When two adjoining plates slide in opposite directions, what is most likely to happen at the boundary?
strong earthquakes
What is Pangaea and why was it part of Wegener's theory?
Find some facts to help you answer this essay question.
What is seafloor spreading and how does it support the theory of continental drift?
Find some facts to help you answer this essay question.
Describe how the theory of plate tectonics explains why most earthquakes occur near plate boundaries.
Find some facts to help answer this essay question.
Describe how the theory of plate tectonics explains why most volcanoes occur near plate boundaries.
Find some facts to help answer this essay question.
What are Earth's crust, mantle, and core?
crust: the outermost layer, the part we live on
mantle: the layer just below the crust
core: the innermost layer
What is the lithosphere?
Earth's crust and the upper part of the mantle
What is a fault?
a break in the Earth's crust