Layers of the Earth

Front

What are the four main layers of the Earth?

Back

Crust, Mantle, Outer Core, Inner Core.

Front

What is the outer core primarily composed of?

Back

Liquid metal.

Front

What is the state of the inner core?

Back

Solid.

Front

Why is the inner core solid despite being very hot?

Back

Due to the immense pressure.

Front

Which layer of the Earth do we live on?

Back

Crust.

Front

What is the mantle made of?

Back

Semi-solid rock that flows slowly.

Front

What is the temperature of the outer core?

Back

Approximately 4,000 to 6,000 degrees Celsius.

Front

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

Back

The inner core is solid, while the outer core is liquid.

Front

What is the thickness of the Earth's crust?

Back

Varies from about 5 km (oceanic crust) to 70 km (continental crust).

Front

What is the main component of the Earth's crust?

Back

Silicate rocks.