Question

An iron bar can be made magnetic when ______
its magnetic domains line up
it rotates it poles to line up with another magnet
it spins it's electrons in different directions
My guess was it rotates it's poles to line up with another magnet

Answer 1

Your guess was right Jo

Answer 2

No wait.. it's A.. not B.

Answer 3

Could you please explain (: ?

Answer 4

@Potatoes.ramu

Answer 5

The atoms of a magnetic material align themselves into magnetic domains( Weiss domains). You can observe these with an electron microscope..