water
DESCRIPTION
WATER . CLASS VI. USES OF WATER. DRINKING BRUSHING WASHING UTENSILS,CLOTHES,VEHICLES CLEANING PLATES, FLOOR PRODUCING ELECTRICITY AGRICULTURE, GARDENING USED IN INDUSTRIES. NEARLY 2/3 OF EARTH IS COVERED WITH OCEAN/SEA WATER . - PowerPoint PPT PresentationTRANSCRIPT
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WATER CLASS VI
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USES OF WATER• DRINKING• BRUSHING• WASHING
UTENSILS,CLOTHES,VEHICLES• CLEANING PLATES, FLOOR• PRODUCING ELECTRICITY• AGRICULTURE, GARDENING• USED IN INDUSTRIES
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NEARLY 2/3 OF EARTH IS COVERED WITH OCEAN/SEA WATER
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WATER IN OCEANS AND SEAS IS SALTY [SALINE] AND UNFIT FOR DRINKING , INDUSTRIAL PURPOSE AND AGRICULTURE
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SOURCES OF FRESH WATER• 1.RIVER
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2.SPRING
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3.POND
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4.WELL
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5.HAND PUMP
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WATER IN TAPS COME FROM RIVER USUALLY
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Cycling of water in nature- WATER CYCLE
• Basic processes in water cycle
• 1.EVAPORATION
• 2.CONDENSATION
• GAS [VAPOUR]
• LIQUID [WATER]
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EVAPORATION• THE PROCESS OF
TURNING WATER TO WATER VAPOUR BY HEATING.
WATER EVAPORATES FROM WATER BODIES AND OTHER SOURCES DUE TO SUN’S HEAT
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• THIS WATER VAPOUR JOINS THE ATMOSPHERE CONTINUOUSLY AS A SLOW PROCESS.
• WATER VAPOUR ALSO REACHES THE ATMOSPHERE BY TRANSPIRATION IN PLANTS.
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FORMATION OF CLOUDS• THE WATER VAPOUR
MOVES UP AND UNDERGO COOLING , AND CONDENSATION TO FORM CLOUDS.
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• MANY TINY DROPLETS OF WATER IN THE CLOUD COME TOGETHER TO FORM LARGER DROPS WHICH ARE HEAVIER AND FALL AS RAIN.
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CONDENSATION• THE PROCESS BY
WHICH WATER- VAPOUR
TURNS TO WATER ON COOLING.
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EXCESSIVE COOLING OF WATER VAPOUR RESULTS IN SNOW FALL / HAIL
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THE WATER THAT FALLS ON LAND AS RAIN AND SNOW AGAIN UNDERGO CIRCULATION
RAIN WATER
SURFACE RUN OFFJOIN RIVERS LAKES
AND OCEAN
INFILTRATIONGO DEEP IN THE
SOIL
SOIL WATER USED BY PLANTS
GROUND WATERSOUCE FOR BOREWELL
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WATER CYCLE
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Ground water is an important source of water
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DEPLETION OF WATER TABLE
Water table may go down
if the water is not sufficiantly replenished.
infiltration
Consumption of ground waterGround
water
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REASONS OF DEPLETION OF WATER TABLE
1. DEFORESTATION
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2 . SCANTY RAINFALL
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3.EXCESSIVE CONSUMPTION BYINCREASING POPULATION
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4. DECREASE IN THE SEEPAGE AREA
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5. EXCESSIVE USE BY Agricultural activities
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6. INCREASING INDUSTRIES
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CONSERVATION OF WATERAVOID
WASTAGE
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CONSERVATION OF WATER
REPAIR LEAKING TAP
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CONSERVATION OF WATER
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CONSERVATION OF WATERREUSE /RECYCLE IF POSSIBLE
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WATER WISE HABITS DIRECT USED KITCHEN WATER TO YOUR GARDEN .
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Drip irrigation for your garden
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WATER WISE HABITS WASH VESSELS
USING COLLECTED WATER
INSTEAD OF WASHING DIRECTLY UNDER TAP.
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WATER WISE HABITSMOP THE
FLOOR INSTEAD OF WASHING
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WATER WISE HABITSTURN OFF
TAP WHILE BRUSHING
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ROOF TOP RAINWATER HARVESTING RAINWATER IS
COLLECTED FROM THE ROOF OF BUILDINGS AND STORED IN TANKS AFTER FILTRATION.
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Roof top rainwater harvesting
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WATER PERCOLATION
SURFACE RUN OFF
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PLANTING VEGETATION
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Roof to rainwater harvesting
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POND- A TRADITIONAL WAY OF COLLECTING WATER
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INFILTRATION PITS IT SOAKS WATER & DIRECT IT TO
UNDER GROUND TO RECHARGE GROUND WATER
Pit filled with gravel
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GRASSY PATCHES & OTHER VEGETATIONSHELPS IN INFILTRATION
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DRIP IRRIGATION- saves water A TECHNIQUE OF WATERING
PLANTS BY USING NARROW TUBES WHICH SUPPLY WATER AT THE BASE OF PLANTS AS TINY DROPS.
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DRIP IRRIGATION
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IF IT RAINS HEAVILY---CAUSES FLOOD
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NO RAIN FOR A LONG PERIOD –CAUSES DRAUGHT
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Save every drop of water !
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SAVE WATER ! SAVE LIFE !
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SAVE WATER ! SAVE LIFE !
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LABEL THE DIAGRAMSUN’S HEAT
CLOUDS
WATER BODY
EVAPORATION
CONDENSATION
RAIN FALL
6
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FILL IN THE BLANKS1. the process of changing water to
water vapour is called ----------------.2. The process of recharging ground
water can be done by ---------------------.3.The source of water for bore well is
-----------4.Amethod of irrigation which saves
good amount of water is ------------------5. One reason for depletion of ground
water is is ----------------
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MATCH THE FOLLOWING CIRCULATION OF
WATER IN NATURE INFILTRATION PITS WATER SAVING
METHOD OF IRRIGATION
A METHOD OF STORING RAINWATER FOR FUTURE USE
CAUSE OF WATER SHORTAGE
DEFORESTATION
WATER CYCLE ROOF TOP
RAINWATER HARVESTING
DRIP IRRIGATION
REPLENISH ground WATER
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THANK YOU