Water cycle, The continuous movement of water among different reservoirs, Water reservoirs, Storage locations of water on Earth, The Sun, The main source of energy for the water cycle on Earth's surface, Gravity force, The main force that pulls water downward to Earth, Evaporation, The process where liquid water changes into gas state (water vapor), Condensation, The process where water vapor changes into liquid water droplets, Transpiration, A type of evaporation that takes place through the stomata of plants, Melting, The process where water changes from solid state (ice) to liquid state, Freezing, The process where water changes from liquid state to solid state (ice), Stomata, Tiny openings in plant leaves that release water vapor, Thermal energy, Energy that causes water particles to change their state, Precipitation, The falling of rain, snow, or sleet back to Earth's surface, Groundwater, Water that leaks down into the ground through rocks and soil, Clouds, They consist of millions of tiny water droplets condensed in the air, Gaining energy, Required for melting, evaporation, and transpiration, Losing energy, Occurs during the processes of condensation and freezing, Runoff, The flowing of liquid water downhill into streams and rivers, Dust and smoke, Particles that water vapor attaches to in the air to form clouds, 10%, The percentage of water vapor in the air that comes from transpiration, Atmosphere, One of the water reservoirs where water is stored as gas or clouds.

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