Water is a colorless, tasteless and odorless liquid at room temperature. It is a good conductor of heat but a poor conductor of electricity. It is an excellent solvent. Water is a liquid at room temperature because hydrogen bonds between water molecules provide enough cohesive force to hold them together. Polar substances dissolve readily in water because they can replace energetically favorable water-water interactions with even more favorable water solute interactions.
Water also has a very high latent heat of fusion or melting. Conversely, nonpolar compounds are poorly soluble in water because they interfere with favorable water-water interactions and thus tend to cluster together in aqueous solutions.