• Biology,  environmental science

    The Water Cycle

    water cycle: a continuous pattern in nature in which water moves as it changes state above, on, and below the surface of Earth. Water is the only substance that exists on Earth in each of its three states. Water easily changes from one state to another. Water sometimes changes its location by changing state in a continuous pattern called the water cycle. The water cycle is self-renewing and constant. The Sun provides the energy to power the water cycle. Changes of State When water changes state in the water cycle, the total number of water particle remains the same. The changes of a state include melting, sublimation, evaporation, freezing, condensation,…