Ключевые слова: art, atom, attract, background, bulb, chromosome, color, colorful, contour, danger, eco, ecology, education, energy, flask, formula, genetic, glass, glyph, hazard, icon, idea, isolated, lamp, lens, library, light, lightning, line, linear, literature, magnet, math, mathematics, molecule, outline, pop, popart, radioactive, school, science, search, set, square, symbol, toxic, x,