Earth's Layers

Which layer is the most diverse containing silica, oxygen, aluminum, and magnesium?

• crust

• mantle

• outer core

• inner core

Which layer is the densest?

• Z

• X

• W

• V

Which layer is the thinnest?

• V

• Z

• Y

• X

Are layers X and Z cooler than V?

• Yes

• No

• They are the same temperature.

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

What layer of Earth contains the plates that cause earthquakes and volcanic eruptions?

• The asthenosphere which is solid with the core.

• The asthenosphere which contains the crust and mantle.

• The lithosphere which contains the crust and outer core.

• The lithosphere which contains the crust and upper mantle.

Tags

NGSS.MS-ESS2-3

NGSS.MS-ESS3-2

Which layer is composed of both iron and nickel, contains both solid and liquid parts, and is extremely hot

• crust

• mantle

• core

• lithosphere

Where does Earth’s magnetic field get its energy from?

• The motion of the Earth's plates colliding with each other.

• The motion of the Earth's liquid core, which generates electric currents.

• The motion of the Earth's mantle which has convection currents.

• The motion of the Earth's rotation around the sun.

How can you describe the “heat flow” or convection currents in the Earth’s mantle?

• When magma is heated by the core, it becomes dense and sinks. When magma cools, it becomes dense and rises.

• The heat flow in the mantle bubbles up under the surface causing the surface to be warm.

• When magma is heated by the core, it becomes less dense and rises. When magma cools, it becomes dense and sinks.

• Heat flow comes up through volcanoes making the Earth warm enough to sustain life.

Tags

NGSS.MS-ESS2-1

Which layer of the Earth is represented by the number 3?

• crust

• inner core

• mantle

• outer core

Which layer is represented by the number 4?

• crust

• inner core

• outer core

• mantle