Solid

Solid is one of the four fundamental states of matter. A solid can best be characterized as a substance of densely-packed molecules, which have sufficient potential energy to conduct thermal and/or electricity. Or become kinetic energy and direct forces from one point in space to another. Its atomic and subatomic (quarks) structure are known to also generate the phenomenon known as gravity. Solids generally have fixed volume and shape, but can expand its surface area. Such as ice crystals. Periodic table elements contain the most abundant forms of this matter, throughout the known universe. Its interactive properties on the quantum level has led scientists to correlate it to the curvature of space/time. As well as gravity.