Fearth was like a hardboiled egg, which part of earth would the egg white represent? mantle, as its depth is less than 2,900 kilometers core, as its depth is less than 2,900 kilometers mantle, as its depth is up to 6,500 kilometers core, as its deptvf earth was like a hardboiled egg, which part of earth would the egg white represent? mantle, as its depth is less than 2,900 kilometers core, as its depth is less than 2,900 kilometers mantle, as its depth is up to 6,500 kilometers core, as its depth is up to 6,500 kilometersh is up to 6,500 kilometers