Ключевые слова: biology, black, board, button, chemistry, class, classroom, computer, concept, cyan, education, equipment, geography, geometric, global, globe, icon, illustration, internet, isolated, lab, laboratory, learning, lecture, map, medical, online, person, planet, presentation, research, school, science, scientific, seminar, sphere, square, study, symbol, technology, training, travel, turquoise, web, world, zoom,