The hydrosphere surrounds all living things on Earth.
Water is essential for all plants and animals to survive.
The primary focus of this unit is to create an awareness of water, its uses, and to develop an understanding of its impact on life. Background information Water evaporates from the surface of the earth, rises and cools, condenses into rain or snow, and falls again to the surface. The water falling on land collects in rivers and lakes, soil, and porous layers of rock, and much of it flows back into the ocean. When young children first learn the process of water evaporation and condensation which are inherent to the water cycle, they often form an unrealistic view of the pattern that this process follows. The following activity helps children understand that the water cycle is not a continuous circular motion, but rather a cycle that varies in nature.