Earth's Layers

Front

What are the three main layers of the Earth?

Back

The three main layers of the Earth are the crust, mantle, and core.

Front

What is the outermost layer of the Earth called?

Back

The outermost layer of the Earth is called the crust.

Front

What is the mantle primarily composed of?

Back

The mantle is primarily composed of silicate rocks that are rich in iron and magnesium.

Front

What is the difference between the lithosphere and the asthenosphere?

Back

The lithosphere is the rigid outer layer of the Earth, while the asthenosphere is the semi-fluid layer beneath it that allows for tectonic movement.

Front

What is the inner core made of?

Back

The inner core is mostly made up of iron and nickel.

Front

What is the role of convection currents in the mantle?

Back

Convection currents in the mantle help drive the movement of tectonic plates.

Front

What is the mesosphere in relation to the Earth's layers?

Back

The mesosphere is the strong lower part of the mantle, located below the asthenosphere.

Front

How does the temperature change as you move from the crust to the inner core?

Back

The temperature increases significantly as you move from the crust to the inner core.

Front

What is the asthenosphere?

Back

The asthenosphere is a semi-fluid layer of the mantle that lies beneath the lithosphere.

Tags

NGSS.HS-ESS2-3

Front

What is the significance of the lithosphere in plate tectonics?

Back

The lithosphere is broken into tectonic plates that float on the semi-fluid asthenosphere, allowing for movement and interaction.

Tags

NGSS.MS-ESS2-3