Ключевые слова: apple, art, atom, biology, black, bulb, button, chemical, chemistry, design, dna, earth, education, equipment, flat, gene, glass, globe, icon, laboratory, light, magnet, magnifying, medical, medicine, microscope, molecular, molecule, pipette, planet, proton, research, rocket, satellite, science, set, sign, structure, symbol, technology, test, trendy, tube, ufo, virus, web, white,