Ключевые слова: abstract, backgrounds, blue, bottle, car, cartoon, cloud, computer, creativity, cross, damaged, danger, dark, design, dirty, drop, equipment, explosion, fire, flame, gas, graphic, heat, ice, illness, illustration, liquid, medicine, metal, middle, natural phenomenon, nature, outdoors, physical, pollution, science, sign, sky, smoke, space, structure, symbol, technology, temperature, transportation, war, water, yellow,