What is matter?... Matter is a physical substance in general, as distinct from mind and spirit; (in physics) that which occupies space and possesses rest mass, especially as distinct from energy.
Element : each of more than one hundred substances that cannot be chemically inter-converted or broken down into simpler substances and are primary constituents of matter. Each element is distinguished by its atomic number, i.e., the number of protons in the nuclei of its atoms.
Mixture : a substance made by mixing other substances together.
Homogeneous : A homogeneous mixture is a solid, liquid or gaseous mixture that has the same proportions of its components throughout a given sample (or multiple samples of different proportion). Conversely, a heterogeneous mixture is not uniform in composition, but proportions of its components vary throughout the sample.
Solution : a liquid mixture in which the minor component (the solute) is uniformly distributed within the major component (the solvent).