Earth's Core

The Earth's core is the very center of our planet, and it is made up of two parts: the inner core and the outer core. The inner core is believed to be a solid ball of iron and nickel, while the outer core is made of molten metal. The core is extremely hot, with temperatures reaching up to 9000 degrees Fahrenheit (5000 degrees Celsius).

Inner Core

The inner core is thought to be composed mainly of iron and nickel. The immense pressure at the center of the Earth keeps the inner core solid, even at such high temperatures. Scientists study the inner core to learn more about the Earth's magnetic field and how it is generated.

Outer Core

The outer core is a layer of molten metal that surrounds the inner core. It is responsible for generating the Earth's magnetic field through the movement of the molten metal. The flow of the liquid outer core creates electric currents, which in turn produce the magnetic field that surrounds the Earth.

Study Guide

1. What are the two parts of the Earth's core? Answer: The inner core and the outer core.
2. What is the inner core composed of? Answer: Mainly iron and nickel.
3. What is the temperature of the Earth's core? Answer: Up to 9000 degrees Fahrenheit (5000 degrees Celsius).
4. How does the outer core contribute to the Earth's magnetic field? Answer: The flow of the liquid outer core creates electric currents, which produce the magnetic field.

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