save water

water: compositionAbout 70% of the earth’s surface is

covered with water. The oceans are made up of more than 97% of the water on earth, while glaciers lock up another 2% of the earth's water. Of the 1% available for human use, half lays a half-mile below the surface of the earth, out of the reach of man. The remaining water supply is in rivers, lakes and groundwater.

water: composition

Water :distributionS.NO. Water bodies Volume of

water (in per%)

Nature of water

1. Oceans 97.3 Saline water

2. Ice caps 02.0 Freshwater

3. Ground water 0.68 Freshwater

4. Fresh water lakes and inland seas

0.009 Freshwater

5. Salt lakes 0.009 Saline water

6. Atmosphere 0.0019 Freshwater

7. Rivers 0.0001 Freshwater

Water :distribution

Water: statesPure water is tasteless, odorless, and colorless. Water can

occur in three states: solid (ice), liquid, or gas (vapor).Solid water—ice is frozen water. When water freezes, its

molecules move farther apart, making ice less dense than water. This means that ice will be lighter than the same volume of water, and so ice will float in water. Water freezes at 0° Celsius, 32° Fahrenheit.

Liquid water is wet and fluid. This is the form of water with which we are most familiar. We use liquid water in many ways, including washing and drinking.

Water as a gas—vapor is always present in the air around us. You cannot see it. When you boil water, the water changes from a liquid to a gas or water vapor. As some of the water vapor cools, we see it as a small cloud called steam. This cloud of steam is an inversion of the clouds we see in the sky. At sea level, steam is formed at 100° Celsius, 212° Fahrenheit.

Water: states

water: uses

Water cycleThe never-ending worldwide process of

water circulation from clouds to land and back to the ocean is called the water cycle, or hydrologic cycle. Almost no new water is created in nature. The earth's water is millions of years old, or older, and is constantly being recycled. We've been using the same water since the beginning of time!

Water cycle

Importance of waterWe all use water without really thinking about it, but

now we need to change our ways! We’re at the tipping point of needing to take a more active role in reducing the amount of water we use; otherwise we will ultimately suffer higher water bills.

Our water supply is finite, which means that we do not have an endless supply. We only have the water that we have now. Ninety - seven percent of all the water on the earth is salt water which is not suitable for drinking. Only three percent of all the water is fresh water, and only one percent is available for drinking water. The other two percent is locked in ice caps and glaciers. Without water, the earth would look like the moon.

Importance of waterAll living things need water to live. People can

live several weeks without food, but only a few days without water. We should drink six to eight glasses of water each day!

Water makes up 83% of our blood, 70% of our brain, and 90% of our lungs. Overall, our bodies are 70% water.

We must learn to save water now for the future. The quality of our water is very important. We have the same amount of water now as there was when the earth was created.

Importance of water

Water conservation Water conservation means using our water wisely

and caring for it properly. Since each of us depends on water for life, it is our responsibility to learn more about water conservation and how we can help keep our water pure and safe for generations to come.

Saving water now means having water available in the future for recreational purposes, too. Conserving the water we have minimizes the effects of water shortages and helps build a better defense against future drought years. If we save water now, we are helping to ensure a water supply adequate for future generations. Saving water saves money

Ways to save waterTurn off the tap - a running tap wastes over 6 liters of

water per minuteFit taps and shower heads with flow restrictors- this cuts

water use by halfFix dripping taps - they waste at least 5,500 liters of

water a yearTake a short shower instead of a bathHave a full load when you wash your clothesWhen washing your dishes in the sink, use a plugFill the dishwasher before putting it on and use the eco

settingPut a save-a-flush in your cistern - it will save one liter of

water per flushPurchase water efficient appliances

ways to save waterCheck all faucets, pipes and toilets for leaks.Install water saving showerheads and ultra-low-flush

toilets.Take shorter showers.Never use your toilet as an ashtray or wastebasket.Turn off the water while brushing your teeth or

shaving.Defrost frozen food in the refrigerator.Rinse vegetables in a full sink or pan of water.Fully load your dishwasher.Rinse dishes in a full sink or pan of water.Wash full loads of clothes.Ways to Save Water Outdoors

ways to save waterWater your lawn or garden early in the morning or late in

evening.Adjust sprinklers so that they don't water the sidewalk or

street.Don't water on cool, rainy or windy days.Use drip irrigation systems.Plant drought-tolerant or low water-use plants and grasses.Use shrubs and ground cover to reduce the amount of grass.Place mulch around plants to reduce evaporation and

discourage weeds.Use a bucket instead of a hose to wash your car.Use a broom rather than a hose to clean sidewalks,

driveways, loading docks and parking lots. 

Wastewater management

The presentation by

HARSH SHARMA