Water is considered a polar molecule because it
has the ability to freeze
is made up of hydrogen and oxygen
has a partial positive and negative charges at each end

has a partial positive and negative charges at each end

Explanation:-

Electronegativity is defined as the property of an element to attract a shared pair of electron towards itself.

A polar covalent bond is defined as the bond which is formed when there is a difference of electronegativities between the atoms. It is also defined as the bond which is formed due to the unequal sharing of electrons between the atoms.

Water is formed by the sharing of electrons between hydrogen and oxygen where the shared pair lies more towards oxygen due to its high electronegativity and thus bears a partial negative charge.Whereas hydrogen being less electronegative bears a partial positive charge.