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