They are both are a state of any matter and both can be changed to a liquid, gas, and solid
All solids have their state in common. They can either be melted into a liquid or evaporated into a gas state.
solids are hard and they have mass.
solids
Both have a fixed volume.
I Think it is salt and sugar:)
both solids perhaps
Solids and gases have a number of things in common. The main similarity between the two is that they can be converted into liquid state.
The most common reason is that the solids are absorbing water in sufficient volume to cause a notable change in volume, without dissolving or losing their appearance as solids.
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.
A common tool used to measure the volume of solids is a graduated cylinder or a beaker for regularly shaped solids. For irregularly shaped solids, displacement method using a measuring cylinder and water can be used to find the volume.
They are all convex, they are all polyhedra and they are all regular.
They are both man made, transparent solids.