Ключевые слова: addiction, amphetamine, anorexia, atom, atomic, chemical, chemistry, composition, compound, concept, crystal, drug, education, element, flat, formula, futuristic, graphic, hormone, hyperactivity, icon, illustration, line, medical, medicine, meth, methamphetamine, model, molecular, molecule, research, school, science, scientific, scientist, sign, skeletal, stimulant, structural, structure, symbol, technology, text,