Water and More.pptxbbbbbbbbbbbbbbbbbbbbb

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1. Water and More Understanding the Importance and Properties of Water

2. Introduction to Water Water is made of tiny molecules of hydrogen and oxygen. Each one is so small that you can’t see it even with the most powerful microscope. Pure water has no color, no taste and doesn’t smell of anything. Water exists in three forms on the Earth: Solid (ice, hail, snow or frost) Liquid (in lakes, oceans, rain, dew, fog or mist) Gas (steam or water vapor - "invisible" water in the air).

3. Properties of the WATER Colorless, odorless, and tasteless. Polar molecule, Water is an excellent solvent. ... Water has high heat capacity. ... Water has cohesive and adhesive properties. ... Water is less dense as a solid than as a liquid.

4. Sources of the WATER About 97% of the water on the Earth's surface is in the world's oceans. This is where you can find most of the other 3% : Lakes Rivers Polar ice caps Clouds Rain Stored in rocks (aquifers) Sea ice

5. Importance of Water in Living Organisms Maintenance of body temperature : Water helps in eliminating excessive body heat As a medium of transport : Water is a universal solvent and dissolves a majority of minerals. As a component of photosynthesis : Water forms an integral part of photosynthesis. As a habitat for aquatic organisms :Water forms 75% of the Earth and hence is a habitat for over a million aquatic species of flora and fauna

6. Why should we save water? Of all the water in the world, only 3% is fresh. Less than one third of 1% of this fresh water is available for human use. The rest is frozen in glaciers or polar ice caps, or is deep within the earth, beyond our reach. To put it another way, if 100 liters represents the world's water, about half a tablespoon of it is fresh water available for our use.

7. Vishank Venati VII B Roll no 7232