Earth Layers*

Front

What is the inner core of the Earth?

Back

The inner core is the solid, innermost layer of the Earth, composed mainly of iron and nickel, and has the greatest density.

Front

What is the outer core of the Earth?

Back

The outer core is the liquid layer of the Earth located beneath the mantle and above the inner core, primarily made of molten iron and nickel.

Front

What is the mantle?

Back

The mantle is the thick layer of rock between the Earth's crust and outer core, divided into the upper and lower mantle.

Front

What is the lithosphere?

Back

The lithosphere is the outermost physical layer of the Earth, consisting of the crust and the uppermost part of the mantle.

Front

What is the crust?

Back

The crust is the thinnest layer of the Earth, composed of solid rock, and forms the Earth's surface.

Front

What is the difference between the upper mantle and lower mantle?

Back

The upper mantle is partially molten and allows for tectonic plate movement, while the lower mantle is more solid and extends to the outer core.

Front

What is the asthenosphere?

Back

The asthenosphere is a semi-fluid layer within the upper mantle that allows tectonic plates to move.

Tags

NGSS.MS-ESS2-3

Front

What is the composition of the inner core?

Back

The inner core is primarily composed of solid iron and nickel.

Tags

NGSS.HS-ESS2-3

Front

What is the temperature of the outer core?

Back

The temperature of the outer core ranges from about 4,000 to 6,000 degrees Celsius.

Front

How does the density of the inner core compare to other layers?

Back

The inner core has the greatest density compared to the outer core, mantle, and crust.