Layers of the Earth Review

Front

What is the mantle?

Back

The mantle is the layer of the Earth that is both fluid and solid, located between the crust and the core.

Front

What is the crust?

Back

The crust is the outermost layer of the Earth's Geosphere, consisting of solid rock.

Front

What is the outer core?

Back

The outer core is the layer of the Earth's core that is liquid in nature, composed mainly of iron and nickel.

Front

What is the core?

Back

The core is the innermost layer of the Earth, consisting of a solid inner core and a liquid outer core.

Front

What is the thickest layer of the Earth?

Back

The mantle is the thickest layer of the Earth, extending to about 2,900 kilometers beneath the surface.

Front

What are the two main types of crust?

Back

The two main types of crust are continental crust (thicker and less dense) and oceanic crust (thinner and denser).

Front

What is the temperature range of the mantle?

Back

The temperature in the mantle ranges from about 500 to 4,000 degrees Celsius.

Front

What is the composition of the outer core?

Back

The outer core is primarily composed of liquid iron and nickel.

Front

How does the mantle affect tectonic plates?

Back

The mantle's convection currents drive the movement of tectonic plates on the Earth's surface.

Front

What is the difference between the inner core and outer core?

Back

The inner core is solid due to immense pressure, while the outer core is liquid.