The Knowledge of the chemical composition, structure, and properties of substances and of the chemical processes and transformations that they undergo. This includes uses of chemicals and their interactions, danger signs, production techniques, and disposal methods, principles and methods for curriculum and training design, teaching and instruction for individuals and groups, and the measurement of training effects, arithmetic, algebra, geometry, calculus, statistics, and their applications, the structure and content of the English language including the meaning and spelling of words, rules of composition, and grammar, Knowledge and prediction of physical principles, laws, their interrelationships, and applications to understanding fluid, material, and atmospheric dynamics, and mechanical, electrical, atomic and sub- atomic structures and processes.