WATER

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By: shalomlydia (37 month(s) ago)

wonderful...apriciate ur perspiration

By: samdomnic (41 month(s) ago)

hmm., super ppt thanks

By: bafifi (50 month(s) ago)

Wonderful, Thanks a lot

By: pavas0407 (50 month(s) ago)

Really a great presentation. Both content wise and technique wise.

By: vbansal43 (54 month(s) ago)

Great ppt mam.

Presentation Transcript

WATER A PRECIOUS RESOURCE : 

by MERLIN. S .W 1 WATER A PRECIOUS RESOURCE PRESENTED BY Mrs.MERLIN .S.W TGT (SCIENCE), K V .DHARWAD CLASS VII

THREE DIFFERENT STATES OF WATER : 

by MERLIN. S .W 2 THREE DIFFERENT STATES OF WATER 1. SOLID FORM OF WATER - ICE / SNOW PRESENT AS ICE CAPS AT THE POLES OF THE EARTH SNOW COVERED MOUNTAINS AND GLACIERS

2. LIQUID FORM - WATER : 

by MERLIN. S .W 3 2. LIQUID FORM - WATER PRESENT IN OCEANS LAKES RIVERS & UNDERGROUND

3.GASEOUS FORM - WATER VAPOUR : 

by MERLIN. S .W 4 3.GASEOUS FORM - WATER VAPOUR PRESENT IN AIR AROUND US

Cycling of water in nature : 

by MERLIN. S .W 5 Cycling of water in nature Basic processes in water cycle EVAPORATION - conversion of LIQUID TO GAS by heating CONDENSATION Conversion of GAS TO LIQUID by cooling GAS [VAPOUR] LIQUID [WATER] evaporation condensation heating cooling

WATER CYCLE : 

by MERLIN. S .W 6 WATER CYCLE

The process of seeping of water into the ground-INFILTRATION : 

by MERLIN. S .W 7 The process of seeping of water into the ground-INFILTRATION RAIN WATER SURFACE RUN OFF INFILTRATION SOIL WATER GROUND WATER

Slide 8: 

by MERLIN. S .W 8 THE UPPER LIMIT OFSATURATED ZONE OF GROUND WATER— WATER TABLE WATER TABLE

Slide 9: 

by MERLIN. S .W 9 UNSATURATED ZONE SATURATED ZONE AQUIFER WATER TABLE GROUND WATER THE GROUND WATER STORED BETWEEN THE LAYERES OF HARD ROCKS BELOW THE WATER TABLE --AQUIFER

Ground water is an important source of water : 

by MERLIN. S .W 10 Ground water is an important source of water

DEPLETION OF WATER TABLE : 

by MERLIN. S .W 11 DEPLETION OF WATER TABLE Water table may go down if the water is not sufficiantly replenished. infiltration Consumption of ground water Ground water

REASONS OF DEPLETION OF WATER TABLE : 

by MERLIN. S .W 12 REASONS OF DEPLETION OF WATER TABLE 1. DEFORESTATION

by MERLIN. S .W 13 2 . SCANTY RAINFALL

3.EXCESSIVE CONSUMPTION BYINCREASING POPULATION : 

by MERLIN. S .W 14 3.EXCESSIVE CONSUMPTION BYINCREASING POPULATION

DECREASE IN THE SEEPAGE AREA : 

by MERLIN. S .W 15 DECREASE IN THE SEEPAGE AREA

5. EXCESSIVE USE BY Agricultural activities : 

by MERLIN. S .W 16 5. EXCESSIVE USE BY Agricultural activities

6. INCREASING INDUSTRIES : 

by MERLIN. S .W 17 6. INCREASING INDUSTRIES

CONSERVATION OF WATER : 

by MERLIN. S .W 18 CONSERVATION OF WATER AVOID WASTAGE

CONSERVATION OF WATER : 

by MERLIN. S .W 19 CONSERVATION OF WATER REPAIR LEAKING TAP

CONSERVATION OF WATER : 

by MERLIN. S .W 20 CONSERVATION OF WATER USE MINIMUM

CONSERVATION OF WATER : 

by MERLIN. S .W 21 CONSERVATION OF WATER REUSE /RECYCLE IF POSSIBLE

WATER WISE HABITS : 

by MERLIN. S .W 22 WATER WISE HABITS DIRECT USED KITCHEN WATER TO YOUR GARDEN .

Drip irrigation for your garden : 

by MERLIN. S .W 23 Drip irrigation for your garden

WATER WISE HABITS : 

by MERLIN. S .W 24 WATER WISE HABITS WASH VESSELS USING COLLECTED WATER INSTEAD OF WASHING DIRECTLY UNDER TAP.

WATER WISE HABITS : 

by MERLIN. S .W 25 WATER WISE HABITS MOP THE FLOOR INSTEAD OF WASHING

WATER WISE HABITS : 

by MERLIN. S .W 26 WATER WISE HABITS TURN OFF TAP WHILE BRUSHING

RAINWATER HARVESTING : 

by MERLIN. S .W 27 RAINWATER HARVESTING BASIC PRINCIPLE- REDUCE THE SPEED MAKE RUNNING WATER WALK ! MAKE WALKING WATER CRAWL !! MAKE CRAWLING WATER STAND !!! ALLOW THE STANDINGWATER TO PERCOLATE !!!! STOP!

Slide 28: 

by MERLIN. S .W 28

Slide 29: 

by MERLIN. S .W 29 WATER PERCOLATION SURFACE RUN OFF

PLANTING VEGETATION : 

by MERLIN. S .W 30 PLANTING VEGETATION

ROOF TOP RAINWATER HARVESTING : 

by MERLIN. S .W 31 ROOF TOP RAINWATER HARVESTING RAINWATER IS COLLECTED FROM THE ROOF OF BUILDINGS AND STORED IN TANKS AFTER FILTRATION.

Roof top rainwater harvesting : 

by MERLIN. S .W 32 Roof top rainwater harvesting

Roof to rainwater harvesting : 

by MERLIN. S .W 33 Roof to rainwater harvesting

BAWRI- A TRADITIONAL WAY OF COLLECTING WATER : 

by MERLIN. S .W 34 BAWRI- A TRADITIONAL WAY OF COLLECTING WATER

INFILTRATION PITS : 

by MERLIN. S .W 35 INFILTRATION PITS IT SOAKS WATER & DIRECT IT TO UNDER GROUND TO RECHARGE GROUND WATER Pit filled with gravel

GRASSY PATCHES & OTHER VEGETATIONS : 

by MERLIN. S .W 36 GRASSY PATCHES & OTHER VEGETATIONS HELPS IN INFILTRATION

DRIP IRRIGATION- saves water : 

by MERLIN. S .W 37 DRIP IRRIGATION- saves water A TECHNIQUE OF WATERING PLANTS BY USING NARROW TUBES WHICH SUPPLY WATER AT THE BASE OF PLANTS AS TINY DROPS.

DRIP IRRIGATION : 

by MERLIN. S .W 38 DRIP IRRIGATION

Slide 39: 

by MERLIN. S .W 39

Save every drop of water ! : 

by MERLIN. S .W 40 Save every drop of water !

SAVE WATER ! SAVE LIFE ! : 

by MERLIN. S .W 41 SAVE WATER ! SAVE LIFE !

SAVE WATER ! SAVE LIFE ! : 

by MERLIN. S .W 42 SAVE WATER ! SAVE LIFE !

LABEL THE DIAGRAM : 

by MERLIN. S .W 43 LABEL THE DIAGRAM SUN’S HEAT CLOUDS WATER BODY EVAPORATION CONDENSATION RAIN FALL 6

FILL IN THE BLANKS : 

by MERLIN. S .W 44 FILL IN THE BLANKS 1.The solid form of water is ---------------- 2. the process of changing water to water vapour is called ----------------. 3. The process of recharging ground water can be done by ---------------------. 4.The source of water for bore well is ----------- 5.Amethod of irrigation which saves good amount of water is ------------------ 6. One reason for depletion of ground water is is ---------------- ICE EVAPORATION rainwater harvesting ground water drip irrigation increase in population

MATCH THE FOLLOWING : 

by MERLIN. S .W 45 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

Slide 46: 

by MERLIN. S .W 46

THANK YOU : 

by MERLIN. S .W 47 THANK YOU