Crust

Real World Example

Imagine trying to peel a hard-boiled egg without breaking the delicate white underneath. Just like the thin shell that covers and protects the egg, Earth's crust is the thin rocky layer that sits above the more robust mantle. The shell is to the egg what the crust is to Earth—both act as protective barriers that preserve what lies beneath while being the outermost layer that we interact with directly.

Real World Example Illustration