Science Common Sense

1124 - What is the Earth composed of?

The Earth is made up of four main layers:

  1. The Crust: The outer layer that we walk on.
  2. The Mantle: A thick layer below the crust made mostly of hot rock.
  3. The Outer Core: A liquid layer made of melted metal around the center of the Earth.
  4. The Inner Core: A small, solid, and extremely hot metal ball at the very center.

Think of it like an onion with different layers.

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