Polarity of Water | Cause & Biological Importance Water is a polar molecule because oxygen is more electronegative than hydrogen, which creates a partial negative charge on oxygen and a partial positive charge on hydrogen. This unequal sharing of electrons forms a dipole. Due to this polarity, water can form hydrogen bonds, making it an excellent universal solvent, helping in temperature regulation, cohesion, adhesion, and transportation of substances in living organisms. #PolarityOfWater #Water