Layers of the Earth

Front

What is the inner core of the Earth?

Back

The inner core is the solid innermost layer of the Earth, primarily composed of iron and nickel.

Front

What layer sits directly below the lithosphere?

Back

The asthenosphere sits directly below the lithosphere.

Front

What is the state of the upper part of the mantle?

Back

The upper part of the mantle is solid.

Front

Which layer of the Earth has the greatest density?

Back

The inner core has the greatest density.

Front

What is the thickest layer of the Earth?

Back

The mantle is the thickest layer of the Earth.

Front

What is the outer core made of?

Back

The outer core is made of liquid iron and nickel.

Front

What is the composition of the crust?

Back

The crust is composed of solid rock, including both continental and oceanic crust.

Front

What is the temperature of the inner core?

Back

The temperature of the inner core can reach up to 5,700 degrees Celsius (10,300 degrees Fahrenheit).

Front

What is the asthenosphere?

Back

The asthenosphere is a semi-molten layer of the mantle that allows for the movement of tectonic plates.

Tags

NGSS.HS-ESS2-1

NGSS.HS-ESS2-3

Front

How thick is the Earth's crust?

Back

The Earth's crust is about 5 to 70 kilometers thick, depending on whether it is oceanic or continental.