Magnet attracts:

**The reasoning** Magnets work through a property called **ferromagnetism** — the ability of certain materials to be strongly attracted to magnetic fields. Iron, nickel, and cobalt are the main ferromagnetic materials. Their atoms have unpaired electrons that create tiny magnetic fields. When a magnet comes close, these atomic magnets align, and the material gets pulled toward the magnet. Iron is the most common ferromagnetic material you'll encounter, which is why magnets stick to iron nails, steel doors, and metal cans. **Why the wrong options tempt you** - **Wood, glass, and plastic** are all non-magnetic materials. They might tempt you if you're thinking "solid objects attract each other," but attraction requires specific atomic properties, not just being solid. These materials have paired electrons that cancel out magnetic effects. **Quick takeaway** Remember: **Magnets only attract ferromagnetic materials — iron, nickel, and cobalt** — because their atoms can align with magnetic fields. If it's not one of these metals (or their alloys like steel), a magnet won't pull it!