Earth's Layers

Which of the Earth's layers is the hottest and densest?

• A. Inner Core

• B. Outer Core

• C. Mantle

• D. Crust (Oceanic + Continental)

Which layer of the Earth is the thickest?

• Inner Core

• Outer Core

• Mantle

• Crust (Oceanic + Continental)

Look at the image below. Using the image, how can you explain the Earth's layers to someone? (Hint: There are multiple answers)

• You can explain that the Earth is made up of 4 layers, each having distinctive characteristics.

• You can explain that the Lithosphere and Asthenosphere are the two main layers of the Earth.

• You can explain that the Earth is made up of the Crust, Mantle, Outer Core, and Inner Core.

• You can explain that water caused the formation of Earth's 7 layers.

Tags

NGSS.MS-ESS2-1

What are the three distinctive layers of the mantle?

• Oceanic Crust, Continental Crust, Volcanic Crust

• Lithosphere, Asthenosphere, Mesosphere

• Upper mantle, Middle mantle, Lower mantle

• Crust, Mantle, Core

Identify the layers of the Earth shown in the diagram.

a

b

c

d

Inner Core

Crust

Mantle

Outer Core

Tags

NGSS.MS-ESS2-1

Which point is the Outer Core?

Tags

NGSS.MS-ESS2-2

NGSS.MS-ESS2-3

Why does the Oceanic Crust sink underneath the Continental crust?

• Convection currents pull the oceanic crust down further than the continental crust.

• The Oceanic crust is made of basalt, which makes it denser than the Continental Crust.

• The weight of the water (and other masses in the ocean) causes it to sink.

• None of the Above

What causes tectonic plates to move?

• Convection currents create pressure that moves tectonic plates.

• Wind, water, and other forces move tectonic plates.

• The plastic (liquid + solid) mantle is the main cause of the movement of plate tectonics.

• They don't move.

Tags

NGSS.MS-ESS2-3

Kevin made a report on the Earth's crust and mantle. "Crust: Thinnest and Hottest Layer. Mantle: Solid layer with three distinctive layers." What was his mistake? (Hint: There are multiple answers!)

• The mantle has 4 distinctive layers, not three.

• The crust is not the hottest layer of the Earth.

• The mantle is plastic (solid+liquid), not solid.

• There is no mistake.

Tags

NGSS.MS-ESS2-1

What type of rock is shown and what evidence supports your claim?

• I know the rock is sedimentary because I can see that there are large crystals that make up the rock.

• I know the rock is metamorphic because I can see shells compacted in the rock.

• I know the rock is metamorphic because I can see that there are fossils found in the different layers of the rock.

• I know the rock is sedimentary because I can see that it is made of different pieces of shell cemented together.

Tags

NGSS.MS-ESS2-3