8. BOWER Layers of the Earth

The axes below relate the temperature to the depth below Earth's surface.

Which of the following graphs best represents temperatures inside the Earth?

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Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

Which of the following graphs best represents the relationship between density and depth of material below Earth's surface?

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The diagram below shows four layers of Earth. Each layer is identified by a number.

Which layer of Earth is composed primarily of solid iron?

• 4

• 3

• 2

• 1

Tags

NGSS.MS-PS1-1

Which layer is composed primarily of liquid nickel and iron?

• 4

• 3

• 2

• 1

Which of the following best describes the lithosphere?

• The outer rigid portion of the upper mantle and the rigid crust

• The rigid crust

• The lower part of the mantle and the outer core

• the lower fluid mantle and upper rigid mantle

The Earth is made up of distinct layers which have different characteristics. How would a geologist best distinguish between the lithosphere and crust?

• The lithosphere is liquid while the crust is solid

• The lithosphere is the layer of the crust closest to the mantle.

• The crust is along the surface of the Earth, while the lithosphere is near the core.

• The crust, along with the upper mantle, make up the lithosphere.

Which of the following characteristics could be used to correctly indicate a relationship between two of Earth's layers?

• The inner and outer cores are both composed of solid iron.

• The crust and mantle are the densest layers.

• The core radiates heat, which has a role in the convection of the mantle.

• The lithosphere has convection due to heating and cooling, while the core radiates heat.

A numbered diagram of the Earth's layers is shown below. Which of Earth's Layers are solid?

• Layers 1 and 4

• Layers 1 and 5

• Layers 4 and 5

• Layers 3 and 4

Tags

NGSS.MS-ESS2-1

Interactions between layers of Earth cause convection currents to move crustal plates. The diagram below shows four layers of Earth.

In which layer of Earth are the convection currents that directly result in tectonic plate motion found?

• 1

• 2

• 3

• 4

Tags

NGSS.MS-ESS2-3

The lithosphere is made of

• The upper, solid part of the mantle and the Earth’s crust

• The hot, slowly flowing rock found in the lower part of the mantle

• The outer core and lower part of the mantle

• The middle and upper mantle together

Tags

NGSS.MS-ESS2-1