Earth's Layers (accelerated 2025)

What is the outermost layer of the Earth called?

• Inner core

• Outer core

• Mantle

• Crust

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TEKS.SCI.6.10B

Which layer of the Earth is composed mostly of liquid iron and nickel?

• Inner core

• Outer core

• Mantle

• Crust

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TEKS.SCI.6.10B

Describe the main difference between the Earth's inner core and outer core.

• The inner core is solid, while the outer core is liquid.

• The inner core is liquid, while the outer core is solid.

• Both are solid.

• Both are liquid.

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TEKS.SCI.6.10B

Which layer of the Earth is directly beneath the crust?

• Inner core

• Outer core

• Mantle

• Crust

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TEKS.SCI.6.10B

Explain how the mantle is different from the crust in terms of composition and physical state.

• The mantle is composed of solid rock, while the crust is liquid.

• The mantle is composed of semi-solid rock, while the crust is solid.

• Both the mantle and crust are liquid.

• Both the mantle and crust are solid.

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TEKS.SCI.6.10B

Which layer of the Earth is the thickest?

• Inner core

• Outer core

• Mantle

• Crust

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TEKS.SCI.6.10B

Model the layers of the Earth by arranging them from the outermost to the innermost.

• Crust, Mantle, Outer core, Inner core

• Inner core, Outer core, Mantle, Crust

• Mantle, Crust, Inner core, Outer core

• Outer core, Inner core, Crust, Mantle

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TEKS.SCI.6.10B

What evidence supports the idea that the Earth's outer core is liquid?

• Seismic waves slow down as they pass through the outer core.

• Seismic waves speed up as they pass through the outer core.

• Seismic waves do not pass through the outer core.

• Seismic waves are unaffected by the outer core.

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TEKS.SCI.6.10B

Which layer of the Earth is responsible for the generation of the planet's magnetic field?

• Inner core

• Outer core

• Mantle

• Crust

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TEKS.SCI.6.10B

How does the temperature change as you move from the crust to the inner core?

• It decreases.

• It remains constant.

• It increases.

• It fluctuates.

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TEKS.SCI.6.10B