Ключевые слова: abstract, addiction, atom, atomic, background, bubble, caffeine, ceramics, chalk, chemical, chemistry, cocoa, coffee, cola, cold, concept, drink, education, element, espresso, fluid, formula, gradient, guarana, guaranine, headache, illustration, mate, matein, migraine, model, molecular, molecule, organic, paraguayan holly, red liquid, research, science, scientific, shape, sign, sketching, structure, symbol, tea, teaching, tein, texture,