Layers of the Earth

Front

What are the layers of the Earth?

Back

The Earth is composed of four main layers: the crust, mantle, outer core, and inner core.

Front

What is the Earth's crust?

Back

The crust is the outermost layer of the Earth, consisting of solid rock and is relatively thin compared to other layers.

Front

What is the mantle made of?

Back

The mantle is made of hot, soft rock that can flow slowly over time.

Front

What is the outer core?

Back

The outer core is a liquid layer composed mainly of iron and nickel, located beneath the mantle.

Front

What is the inner core?

Back

The inner core is a solid sphere made primarily of iron and nickel, located at the center of the Earth.

Front

How thick is the continental crust compared to the oceanic crust?

Back

The continental crust is thicker than the oceanic crust.

Front

What happens to temperature as you go deeper into the Earth?

Back

The temperature increases as you get closer to the core.

Front

What is the thinnest layer of the Earth?

Back

The crust is the thinnest layer of the Earth.

Front

What is the composition of the Earth's crust?

Back

The Earth's crust is primarily composed of rocks such as granite and basalt.

Front

What is the significance of the mantle in plate tectonics?

Back

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