C. This is called the heat of vaporization. C. This is called the heat of fusion. Water does not give up or take up heat very easily. Therefore, it is said to have a high heat capacity. At the same time, the temperature of a lake would hardly change at all.
Water flows easily.
Similarly, warmer water is less viscous than cold water. As you increase or decrease the temperature from 4 degrees C, the density decreases. As you add dissolved solids to pure water to increase the salinity, the density increases. As you add salts to seawater, you also change some other properties. Increasing salinity increases the boiling point and decreases the freezing point.