What is the outermost layer of the Earth called?

Which layer of the Earth is composed of liquid iron and nickel?

Which layer of the Earth is the thickest?

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

Which layer of the Earth is  primarily composed of silicon and oxygen compounds in a completely solid form?

Which layer of the Earth is directly beneath the crust?

What is the main component of Earth's inner core?

What causes the Earth's outer core to be in a liquid state?

What process in the mantle causes the movement of tectonic plates?

Which layer of the Earth is responsible for creating the planet's magnetic field?