Ключевые слова: attraction, background, blue, chrome, closeup, copy, electromagnetic, element, equipment, experiment, field, force, gravitation, gravity, horseshoe, iron, magnet, magnetic, magnetism, magnetize, metal, metallic, north, object, physics, polarity, polarize, pole, power, red, school, science, shape, sign, south, space, steel, student, symbol, table, technology, text, tool, toy, wooden,