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Earth Layers

QuestionAnswer
What are Earth's four main layers? The inner core, outer core,mantle, and crust.
What layer of Earth contains solid nickel and iron? The inner core
What layer is composed of liquid iron and nickel? The outer core
What is the mantle composed of? It is composed of oxygen, iron, magnesium, and silicon.
What elment(s) is the crust made up of? It contains silicaon and oxygen.
What type of crust is the most dense? Oceanic crust is most dense.
What is the Earth's thickest layer? The mantle is the thickest layer.
Which layer is the thinnest? The thinnest layer is the crust.
The lithosphere, asthenosphere, and mesosphere are all ______ layers. Mechanical
What mechanical layer do mechanical currents occur? In the mesosphere
What is the lithosphere made up of? The crust and upper mantle.
What is the layer that techtonic plates float on? The Asthenosphere
Why is the core a solid and not a liquid? It is solid because of the amount of pressure it undergoes.
What are the characteristics of the upper mantle? The upper mantle is rigid and brittle.
What rock is abundant in the oceanic crust? Basalt
What is a characteristic of the lower mantle? The lower mantle is malleable.
What increases as you go towards the center of the Earth? The pressure, temperature, and density increase.
What is the interior of Earth mostly made up of? Rock
Which is thicker, the inner or outer core? The outer care is thicker.
Which layer varies because of different geologic features? The crust.
Created by: Zhundley
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