Fill in the Blanks Water Cycle Online version The Water Cycle by 56skool 56skool 1 clay slightly Earth's the eventually flows the circulates the the called is back Cycle or to Sun's The Water ( also known as the hydrologic cycle ) is the journey water takes as it from the land to the sky and again . The heat provides energy evaporate water from the surface ( oceans , lakes , etc . ) . Plants also lose water to the air ( this is transpiration ) . The water vapor condenses , forming tiny droplets in clouds . When clouds meet cool air over land , precipitation ( rain , sleet , or snow ) triggered , and water returns to land ( or sea ) . Some of the precipitation soaks into the ground . Some of underground water is trapped between rock or layers ; this is called groundwater . But most of the water downhill as runoff ( above ground underground ) , eventually returning to seas as salty water .