CheMOOC is a collection of modules that includes interactive review materials and skill-building exercises as a survey of introductory chemistry. CheMOOC provides a review of the basic topics that build a foundation necessary to succeed in entry-level college science courses. The scope is divided into eleven sections: (1) Introduction to Science, Chemistry, and Measurement (2) Matter and Energy (3) Atomic History and Structure (4) Molecular Compounds (5) Ionic Compounds (6) Chemical Equations and Describing Reactions (7) Stoichiometry (8) Aqueous Solution (9) Acids and Bases (10) Gases (11) Basic Organic Chemistry, Functional Groups, and Intermolecular Forces. CheMooc is online and self-paced. Students receive no college credit for the MOOC.