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