Ключевые слова: alcohol, anti, application, basic, bubble, chemical, clean, clear, commercial, cup, demonstration, education, experiment, formulation, gel, germ, glass, hand, high, holding, homemade, hygiene, ingredient, kid, lab, laboratory, learning, making, mixing, mixture, natural, plastic, process, safety, sample, sanitizer, science, solution, step, stick, stirring, technical, tilt, viscosity, viscous, wash, way,