A four-faced solid is called a tetrahedron.
The scientific name for a liquid that has a solid in it is solution.
A sphere is a solid with no edges.
The name of the hardest solid is a diamond; it is the hardest object known to humankind.
An "alloy"
You name it !No solid lies in a plane.
An 'alloy'.
An "alloy"
Mercury
an alloy
The name of the process is 'Melting'. It is that because the solid is melting into a liquid.
A solid that can dissolve is called soluble. A solid that has dissolved is called a solute.
solid with 2 edges is a cylinder