Compositional Layers of the Earth

Which of these best represents the Earth's structure?

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Which of these Earth layers is the thinnest?

• The inner core

• The outer core

• The mantle

• The crust

Which is the thickest layer of Earth?

• The crust

• The inner core

• The mantle

• The outer core

High temperatures inside Earth are from?

• Melted rock

• Fossils

• Soil

• Minerals

The density is highest in Earth's?

• Crust

• Upper mantle

• Lower mantle

• Core

Compared to rocks in Earth's crust, rocks in the mantle are more?

• Dense

• Mineral-rich

• Granular

• Porous

The pie section shows Earth's composition from the center to the surface. Section IV is most likely composed of?

• Molten iron

• Granite rock

• Solid Iron

• Basalt

Which layer or layers of Earth does a deep well or mine shaft go through?

• Crust only

• Mantle only

• Crust and mantle

• Mantle and core

Earth's core is mainly composed of?

• Iron and aluminum

• Silicon and hydrogen

• Iron and nickel

• Silicon and oxygen

The average density of one crustal plate is 2.8 g/cm^3 and the average density of an oceanic plate is 3.2 g/cm^3. If these two plates came together, what could be expected to happen?

• The two plates would push apart and form a rift zone

• The oceanic plate would rise up over the continental plate

• The oceanic plate would be pushed under the continental plate

• The two plates would meet head on and rise up to form mountains

Tags

NGSS.MS-ESS2-2