Ключевые слова: attract, attraction, background, blue, colorful, concept, copy, effort, element, equipment, experiment, field, force, gravitation, gravity, horseshoe, induction, iron, lab, laboratory, light, magnet, magnetic, magnetize, metal, nature, north, object, physics, polarity, polarize, power, red, school, science, scientific, shape, sign, south, space, steel, strength, table, text, wooden,