Ключевые слова: atom, background, beaker, biology, black, chemical, chemistry, design, discovery, dna, doodle, education, element, equipment, experiment, flask, formula, glass, graphic, hand drawn, icon, illustration, isolated, lab, laboratory, medical, medicine, microscope, molecular, molecule, object, paper, pattern, physics, research, school, science, scientific, seamless, set, sketch, structure, study, symbol, syringe, technology, test, tube, white,