ChemPractice is organized by topic according to a conventional, two-semester course of study, beginning with structure and bonding and ending with physical and chemical properties. Each drill consists of several questions. Some drills require entry of a written answer into a response field, while other drills require construction/completion of a diagram, chemical structure, or chemical equation. The drills were prepared with a first-year college course in mind, but the degree of difficulty is appropriate for a high school level course.