Chemical Composition and Density of Layers
Compare the chemical elements and relative densities of Earth's structural layers. Understand why denser materials settled toward the center of the planet.
Questions
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MultiChoice
How do scientists divide Earth's layers by chemical composition?
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MultiChoice
How do scientists divide Earth's layers by physical mechanical properties?
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MultiChoice
Why did heavy elements like iron sink to Earth's core during early Earth formation?
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MultiChoice
What process caused early Earth to separate into distinct chemical layers?
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MultiChoice
Which layer contains the lowest density rocks?
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MultiChoice
What is the average density of continental crust compared to water (1 g/cm3)?
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MultiChoice
What is the average density of inner core material?
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MultiChoice
What chemical group makes up over 90% of Earth's crustal rocks?
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MultiChoice
Which layer is enriched in light elements such as aluminum, silicon, and oxygen?
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MultiChoice
Which metallic element makes up the vast majority of both inner and outer cores?
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MultiChoice
What is the order of Earth's layers from least dense to most dense?
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MultiChoice
Which element is abundant in mantle rocks but scarce in continental crust?