Why is the outer core made up of liquid rock?

The Earth is composed of two cores: a liquid alloy primarily composed of iron and nickel, and an inner core primarily composed of solid iron crystals.

The mantle, which sits on top of the core, is composed of molten rock, and the reason the core is metal is because heavy metals sank to the center during Earth's cooling process.

The high pressures and temperatures found in this area of the Earth's interior cause the materials in the outer core to be in a molten state, which is the main reason why the outer core is composed of liquid rock.

The outer core is made up of liquid rock primarily due to the extremely high temperatures and pressures found deep within the Earth's interior. These conditions cause the rocks in the outer core to exist in a molten state. The temperatures in the outer core can reach up to 5,000 degrees Celsius (9,000 degrees Fahrenheit), which is hot enough to melt most rocks. Additionally, the immense pressure from the weight of the overlying rock and the gravitational forces acting on the Earth's interior also contribute to the liquefaction of the outer core.