مغناطیس برای کودکان

Magnetism. A magnet is an object or device that produces a magnetic field. Magnet attracts objects made of nickel, iron and cobalt. A magnet has 2 poles, the North Pole and the South Pole. Opposite poles of two magnets always attract each other. Like poles of two magnets always repel each other. The Earth also behaves like a magnet. ...

آموزش,کودکان,کودک,مغناطیس,آموزش خلاق,آموزش,آموزش