Layers of the earth
Assessment
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Debra Kelly
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Science
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7th Grade
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2K plays
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Hard
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10 questions
Show answers
1.
Multiple Choice
Which letter in the diagram identifies the layer of Earth made up of solid nickel and iron?
layer A
layer B
layer C
layer D
2.
Multiple Choice
Sally is researching the differences that exist in each layer of the Earth. Which of the following best describes Earth's crust?
Solid, rocky
Liquid, metallic
Semisolid, convecting
Dense, extremely hot
3.
Multiple Choice
The layers of Earth are the crust, mantle, and care, with the core being divided into inner and outer layers. Which of the following does NOT describe the layers of the solid Earth?
The core makes up the majority of Earth's volume.
The mantle is composed of rocks known as silicates.
The core is made up of dense elements, such as iron and nickel
The crust is extremely thin when compared to the core or mantle.
4.
Multiple Choice
Which of Earth's layers is best described as liquid metal?
crust
mantle
outer core
inner core
5.
Multiple Choice
Which of the following is true regarding the composition of the lithosphere?
The lithosphere is mostly liquid, with some medium-density materials, such as silicon.
The lithosphere is more plastic and flows slowly compared to the solid crust of Earth.
The lithosphere includes the core and the lower portion of the mantle.
The lithosphere includes the crust and the uppermost portion of the mantle, which is sold and rigid.
6.
Multiple Choice
The layers of Earth can be classified by their thickness, composition, and state. Which of Earth's layers is best described as a molten state of medium density made of mostly silicon and oxygen?
crust
outer core
mantle
inner core
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