Water

Unit 2

Water

Learning Objectives

• 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

Introduction

Water is one of the basic substance present in the earth. It plays a vital role in the evolution and survival of life. It is impossible to imagine life on the earth without water. Water helps to regulate the temperature of our planet. It also helps to maintain the temperature in organisms.