Core

The core is the innermost layer of the Earth, located beneath the mantle. It is made up of two parts: the inner core and the outer core.

Inner Core

The inner core is solid and consists mainly of iron and nickel. It has a temperature of about 5,700°C to 7,000°C. The immense pressure at the center of the Earth keeps the inner core in a solid state, despite the high temperatures.

Outer Core

The outer core is a liquid layer composed of molten iron and nickel. It is responsible for generating the Earth's magnetic field through the movement of the molten metals. This magnetic field protects the Earth from solar winds and cosmic radiation.

Importance of the Core

The core plays a crucial role in the Earth's structure and processes. Its heat contributes to the movement of tectonic plates, which leads to phenomena such as earthquakes and volcanic eruptions. Additionally, the magnetic field generated by the outer core protects the Earth's atmosphere and helps sustain life on our planet.

Study Guide

1. What are the two parts of the Earth's core?
2. Describe the composition of the inner core.
3. How does the outer core contribute to the Earth's magnetic field?
4. Explain the role of the core in the movement of tectonic plates.
5. Why is the Earth's magnetic field important for sustaining life on the planet?