Water

Objectives

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The Students will be able - To recognize the sources and availability of water - To clarify the composition of water and the process of water cycle - To develop skills in suggesting ways to conserve water - To realize the importance of water for life on earth - To appreciate the efforts made to conserve water

Summary

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- Water is one of the most important components that all animals including human beings and plants depend on for their livelihood. -To an extent of 97% of the total water that exists on Earth is found in seas and oceans. - Only 3% of the freshwater is available in polar ice caps and glaciers. - Lakes, rivers, swamps constitute only 0.3% of the surface water. - The moisture in the soil indicates the presence of underground water. - The continuous circulation of water in nature is called the water cycle. It is effected by evaporation, condensation, precipitation and transpiration. - Ground water is the water present beneath Earth's surface in soil.