All solids have their state in common. They can either be melted into a liquid or evaporated into a gas state.
They are all convex, they are all polyhedra and they are all regular.
All solids have a fixed shape unless acted upon by a force. If the temperature remains constant they have a fixed volume.
Not all solutes are solids.
Wood, pretty much all common solids are compounds.
Mass and volume
The common denominator in solids, liquids, and gases is that they are all forms of matter. They differ in their arrangement of particles and the extent to which those particles move. Solids have tightly packed particles with little movement, liquids have particles that are more spread out with some movement, and gases have particles that are very spread out and move freely.
They are solids, and they are natural materials shaped by humans.
It is true, all are solids.
solids are hard and they have mass.
http://www.periodictable.com/Elements/Solid/index.html shows all solids at room temperature
The can all change from one form to another by certain chemicals or mixtures.
solids