Exercise
Earth's Outer Core: Liquid Metal
Examine the composition and liquid state of Earth's outer core. Learn about the molten metals found deep within this layer.
Questions
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MultiChoice
What state of matter is Earth's outer core?
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MultiChoice
Which two metals primarily compose Earth's outer core?
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MultiChoice
How thick is the outer core layer?
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MultiChoice
Why is the outer core liquid while the inner core is solid?
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MultiChoice
What important Earth feature is generated by the movement of liquid metal in the outer core?
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MultiChoice
What process in the outer core generates electric currents?
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MultiChoice
What is the approximate temperature of the outer core?
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MultiChoice
Which type of seismic wave CANNOT travel through the liquid outer core?
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MultiChoice
What happens to P-waves when they enter the liquid outer core?
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MultiChoice
What is the region on Earth's surface where no direct S-waves are detected called?
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MultiChoice
Which layer surrounds the outer core from above?
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MultiChoice
What scientific model describes how the outer core creates the magnetic field?