What is Density... Density is = mass/volume
Density of each material is unique. If we compare Earth's CRUST, MANTLE and CORE's density...

CRUST's Density is from 2.2g/cm^3 up to 2.9g/cm^3
MATLE has two layers from UPPER to LOWER MANTLE which ranges from 3.4 to 5.6g/cm^3
CORE's Density from outer core to inner core is approximately 9.9 to 13.1 g/cm^3

Follows that, obviously the materials as we go beneath EARTH becomes more denser.

I HOPE I WAS ABLE TO HELP... "Click Thanks" if I do. Thankyou.

The mantle is less dense than the core but denser than the crust
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