Ключевые слова: bag, blue, book, briefcase, calculator, chemical, chemistry, clock, closed, color, colorful, design, dna, education, elements, equipment, flat, globe icon, green, heart, knowledge, lesson, like, literature, love, magnifier, magnifying glass, multicolor, multiply, orange, pencil, pictogram, reading, red, school, schoolbag, science, set, sign, study, symbol, test, testtube, text, trendy, tube, violet, web, yellow,