The outer core is a layer of molten rock located between the mantle and the inner core.

The Earth's crust is relatively thin, ranging from 10 to 20 kilometers in thickness.

The Earth's magnetic field is generated by the movement of molten iron in the outer core.

The Earth's inner core is primarily composed of iron and nickel.

The Earth's crust is composed primarily of solid rock.

The Earth's mantle is approximately 2,900 to 3,000 kilometers thick.

Plate tectonics is driven by the movement of the Earth's mantle.

The Earth's core has a temperature of approximately 5,200 to 5,500 °C.

The Earth's atmosphere is composed primarily of gases.

The Earth's atmosphere extends approximately 100 to 120 kilometers above the surface.

The Earth's tides are caused by the gravitational pull of the moon and the sun on the Earth's oceans.

The Earth is approximately 4.5 to 4.6 billion years old.

The Earth's rotation is caused by the Earth's inner core.

The Earth's core has a density of approximately 12 to 13 g/cm³.

The Earth's gravity is caused by the Earth's inner core.