solid and liquid
Solids
Yes.
Gases
Covalent compounds can be solids, liquids or gases.
Light travels in the air phase of matter compared to the liquids and solids.
A solution is a homogeneous mixture of two or more liquids, only one phase. When another phase exist (for example solids, immiscible liquids) this is not a true solution.
Solids become liquids. A phase change.
They are all something in something else. Suspensions are colloids. Colloids are something small dispersed in something else - solids in liquids (a suspension), gases in liquids, gases in solids etc etc Solutions are one phase - a liquid, but at least 2 compounds make up that phase.
Solids to Liquids (Melting) Liquids turning back into a Solid (Freezing) ((SCF))
solids and liquids
They are all something in something else. Suspensions are colloids. Colloids are something small dispersed in something else - solids in liquids (a suspension), gases in liquids, gases in solids etc etc Solutions are one phase - a liquid, but at least 2 compounds make up that phase.
Both liquids and Solids have definite volumes