Ключевые слова: alcohol, analysis, apparatus, art, blue, burn, burner, chemical, chemistry, color, colorful, container, contour, design, education, equipment, experiment, fire, flame, flat, gas, glass, glassware, heat, icon, illustration, instrument, isolated, lab, laboratory, lamp, line, linear, lineart, liquid, object, outline, research, science, scientific, spirit, test, tool, transparent, white, wick,