Ключевые слова: abstract, atom, atomic, background, beaker, black, chain, college, core, design, education, electric, elictricity, equipment, experiment, flat, icon, illustration, information, inspiration, isolated, knowledge, lab, laboratory, learn, light, magnet, molecule, negative, neuron, object, orbit, pendulum, physics, planet, positive, practice, proton, research, school, science, scientific, set, symbol, test, university, web, white,