Tracy's English Party: The water cycle

The water cycle, also known as the hydrologic cycle, describes the continuous movement of water on, above and below the surface of the Earth. Since the water cycle is truly a "cycle," there is no beginning or end. Water can change states among liquid, vapor, and ice at various places in the water cycle. Although the balance of water on Earth remains fairly constant over time, individual water molecules can come and go.

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Data Sources: http://www.kidzone.ws/WATER/index.html

5D Water Cycle Song

5D - Water Cycle - The Science

There are six important processes that make up the water cycle.

Condensation - the opposite of evaporation. Condensation occurs when a gas is changed into a liquid.
Infiltration - Infiltration is an important process where rain water soaks into the ground, through the soil and underlying rock layers.
Runoff - Much of the water that returns to Earth as precipitation runs off the surface of the land, and flows down hill into streams, rivers, ponds and lakes.
Evaporation - the process where a liquid, in this case water, changes from its liquid state to a gaseous state.
Precipitation - When the temperature and atmospheric pressure are right, the small droplets of water in clouds form larger droplets and precipitation occurs. The raindrops fall to Earth.
Transpiration - As plants absorb water from the soil, the water moves from the roots through the stems to the leaves. Once the water reaches the leaves, some of it evaporates from the leaves, adding to the amount of water vapor in the air. This process of evaporation through plant leaves is called transpiration.