What is the difference between chromatin and a chromosome?

The difference between chromatin and chromosome can be highlighted when using the analogy of a wool. Chromatin is the unwound wool pile of wool where as chromosomes are the tightly wound and condensed wool ball. In chromosomes the DNA is wound around nuclear proteins, histones which allow the DNA to be condensed. Chromatin is the form of DNA in the interphase, whereas chromosomes only appear during mitosis.