What is the mantle made out of
like lava or what?
The mantle is made up of semi-molten rock known as magma. It is the widest section of the earth and has a thickness of about 2,900 kilometers. In the upper parts, the rock is hard but the lower part, the rock is very smooth and begins to melt.
It's not lava it's the rock in the middle, I mean before the lava.