Question

each water molecule acts like a bar magnet. what part of the water molecule acts like the negative end of the magnet?
the oxygen side
the hydrogen side
rewatch

Explanation:

A water molecule ($H_2O$) is polar. Oxygen has a higher electronegativity than hydrogen, pulling shared electrons closer to itself, giving the oxygen side a partial negative charge, which corresponds to the negative end of a bar magnet.

Answer:

The oxygen side