Memory Water cycleVersión en línea Match the word with its meaning. por Annalisa Farrugia Relief rainfall Any form in which water falls from the sky. The boundary between two air masses. Precipitation A type of rainfall that occurs when a warm airmass meets a cold airmass. Dew point When water vapour changes back to water droplets. A solid surface such as dust, over which condensation occurs. Hygroscopic nuclei A type of rainfall that occurs when warm air meets a mountain. Evaporation The movement of water between air, sea and land. The loss of moisture from water surfaces and the soil. Condensation Transpiration A type of rainfall that occurs when air rises as it is heated by the hot ground below. Front The loss of water from vegetation. The critical temperature at which air becomes saturated. Frontal rainfall Water cycle Convectional rainfall