water is present all around us we can see water in well ,pond , river , lake and sea . we can also see water when it rains. Human beings, animals and plants need water to live . we use water in different ways.
Different sources of water
we get water from different sources .Rain is the main source of water . when it rains , rain water fill up ponds ,lakes , rives and streams . Rani water also goes deep into the soil
In summer, snow on mountains, melt .this water comes to the ground form of streams and rives. The water form stereams and rivers flows into the sea.
We build dams and canals to use and ratain water
We get round watre by digging wells, hand pumps and tube wells.
in cities, we get water through pipes . we have pipe connections from an outside water tank.
DRINKING WATER
- we can not drink pond, river , lake or well water because bthere .may be or impure. drining this water can make us ill. so this water is purified beform we drink it. there are water purifiers which make water safe for drinking .In our houser we use water filter to purify tap water to make it drinkable. water can also be purified by boiling it.
SAVING WATER
There is plenty of water on this earth. but water is wasted in many ways need to save water. we must take the following steps at our homes to drinkable water.
Do not let tab open while brushing your teeth
Turn off the taps after using them .
FOMS OF WATER
Water is present on this earth in three forms . when we boil water on a stove ,steam comes out. this steam is this gaseous form of water. this is also called water vapour.
The water which we use in our homer or the water which is present in wells .pond rivers lakes and seas is the liquid form of water.
WATER CYCLE
water changes its form. when it rain the water fills up ponds, rivers, lakes and seas. this water gets heated up by the sun and changes into vapour .this water vapour vrises up in t5he sky ,clouds. here it cools and nforms small bwatwe droplets. There small water droplets from clouds. The clouds cool further and small bwater droplets join together to from bigger water droplets. down on the earth again as rain . This rain water again fills up ponds, rivers lakes and seas.
EVAPORATION;-
In this stage, the heat from the sun heats up the water from oceans and other bodies and eaporates the water in the form of vapours which rises up and form clouds .
CONDIPITATION;-
The water vapour,s in the clouds down .
PRECIPITATION
The cooled waetr vapours in the clouds form droplets and released in the from of precpitation back to the earth surface in the form of rain or snow.
Table of Contents
- COLLECTION ;-
SOURCES OF WATER;-
There are various sources of water . about 97% of the water on the earth,s surface is covered wiht water . the three main sources of water are
Rain water Ground water – this inculudes water bodies like wells and spring and springs
Surface water – This includes different water bodies like Reservoirs, Rivres streams, lakes and tanks .
Importance of water
we all need water for different daily activities including .
Domestic purposes include bathing cleaing cooking drinking ,and wash .
Agricult application include irrigation farming ,gardening and frost contorl .
Other industrial application, apart from this ,we drink water to .
stay hydrated
Lubricate joints
Regulate the body s temperature
Balance the loss of water not digestive tract and bady tiss .