Layers of the Earth

Front

What is the inner core?

Back

The inner core is the innermost layer of the Earth, composed mainly of solid iron and nickel, and is the hottest layer with temperatures reaching up to 5,700 degrees Celsius.

Front

What is the outer core?

Back

The outer core is the layer surrounding the inner core, made of liquid iron and nickel, and is responsible for Earth's magnetic field.

Front

What is the mantle?

Back

The mantle is the thick layer of rock between the Earth's crust and outer core, composed of silicate minerals, and is involved in tectonic activity.

Front

What is the crust?

Back

The crust is the outermost layer of the Earth, consisting of solid rock, and is divided into continental and oceanic crust.

Front

What is continental crust?

Back

Continental crust is the thick part of the Earth's crust that forms the continents, primarily composed of granite and less dense than oceanic crust.

Front

What is oceanic crust?

Back

Oceanic crust is the thinner part of the Earth's crust that forms the ocean floors, primarily composed of basalt and denser than continental crust.

Front

What is granite?

Back

Granite is a common type of igneous rock that is light-colored and coarse-grained, primarily found in continental crust.

Front

What is basalt?

Back

Basalt is a dark, fine-grained igneous rock that is primarily found in 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, making it the hottest layer of the Earth.

Front

What materials make up the inner core?

Back

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