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WATER  A  PRECIOUS  RESOURCE PRESENTED BY TGT (SCIENCE), K V .DHARWAD CLASS  VII
THREE DIFFERENT STATES OF    WATER <ul><li>1.  SOLID FORM OF WATER  -  ICE  /  SNOW </li></ul><ul><li>PRESENT  AS  ICE CAP...
2.  LIQUID  FORM - WATER <ul><li>PRESENT IN  </li></ul><ul><li>OCEANS </li></ul><ul><li>LAKES </li></ul><ul><li>RIVERS  & ...
3.GASEOUS FORM -    WATER VAPOUR <ul><li>PRESENT IN AIR AROUND US </li></ul>
Cycling of water in nature <ul><li>Basic processes in water cycle  </li></ul><ul><li>EVAPORATION -   </li></ul><ul><li>con...
WATER CYCLE
The process of seeping of water into the ground-INFILTRATION RAIN WATER SURFACE RUN OFF INFILTRATION SOIL WATER  GROUND WA...
<ul><li>THE UPPER LIMIT OFSATURATED ZONE OF GROUND WATER — WATER TABLE </li></ul>WATER TABLE
UNSATURATED ZONE SATURATED ZONE AQUIFER WATER TABLE GROUND WATER THE GROUND WATER STORED BETWEEN THE LAYERES OF HARD ROCKS...
Ground water is an important source of water
DEPLETION OF WATER TABLE <ul><li>Water table may go down  </li></ul><ul><li>if the water is not sufficiently replenished. ...
REASONS OF DEPLETION OF    WATER  TABLE <ul><li>1. DEFORESTATION </li></ul>
2 . SCANTY RAINFALL
3.EXCESSIVE CONSUMPTION BY INCREASING  POPULATION
<ul><li>DECREASE  IN  THE  SEEPAGE  AREA </li></ul>
5. EXCESSIVE USE BY   Agricultural activities
6. INCREASING  INDUSTRIES
CONSERVATION OF WATER <ul><li>AVOID WASTAGE </li></ul>
CONSERVATION OF WATER <ul><li>REPAIR LEAKING TAP </li></ul>
CONSERVATION OF WATER <ul><li>USE  MINIMUM </li></ul>
CONSERVATION OF WATER <ul><li>REUSE /RECYCLE </li></ul><ul><li>IF POSSIBLE </li></ul>
WATER WISE HABITS <ul><li>DIRECT  </li></ul><ul><li>USED  </li></ul><ul><li>KITCHEN  WATER  </li></ul><ul><li>TO  </li></u...
Drip irrigation for your garden
WATER WISE HABITS <ul><li>WASH  VESSELS   USING  COLLECTED WATER  </li></ul><ul><li>INSTEAD  OF   WASHING DIRECTLY  UNDER ...
WATER WISE HABITS <ul><li>MOP  THE  FLOOR INSTEAD  OF WASHING </li></ul>
WATER WISE HABITS <ul><li>TURN OFF TAP WHILE BRUSHING </li></ul>
RAINWATER HARVESTING <ul><li>BASIC PRINCIPLE- </li></ul><ul><li>REDUCE THE SPEED </li></ul><ul><li>MAKE  </li></ul><ul><li...
 
WATER PERCOLATION SURFACE RUN OFF
PLANTING  VEGETATION
ROOF TOP RAINWATER HARVESTING <ul><li>RAINWATER IS COLLECTED FROM THE ROOF OF BUILDINGS AND STORED IN TANKS AFTER FILTRATI...
Roof top rainwater harvesting
Roof to rainwater harvesting
BAWRI- A  TRADITIONAL WAY OF COLLECTING  WATER
INFILTRATION PITS   <ul><li>IT SOAKS WATER & DIRECT IT TO UNDER GROUND  TO RECHARGE GROUND WATER </li></ul>Pit filled with...
GRASSY  PATCHES  &  OTHER  VEGETATIONS <ul><li>HELPS IN INFILTRATION </li></ul>
DRIP IRRIGATION -  saves water <ul><li>A TECHNIQUE OF WATERING PLANTS BY USING NARROW TUBES WHICH SUPPLY WATER AT THE BASE...
DRIP IRRIGATION
 
Save every drop of water !
SAVE WATER  !  SAVE LIFE  !
SAVE WATER !  SAVE LIFE !
LABEL THE DIAGRAM SUN’S HEAT CLOUDS WATER BODY EVAPORATION CONDENSATION RAIN FALL 6
FILL IN THE BLANKS <ul><li>1.The solid form of water is ---------------- </li></ul><ul><li>2. the process of changing wate...
MATCH THE FOLLOWING <ul><li>CIRCULATION OF WATER IN NATURE </li></ul><ul><li>INFILTRATION PITS </li></ul><ul><li>WATER SAV...
 
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Transcript of "Water"

  1. 1. WATER A PRECIOUS RESOURCE PRESENTED BY TGT (SCIENCE), K V .DHARWAD CLASS VII
  2. 2. THREE DIFFERENT STATES OF WATER <ul><li>1. SOLID FORM OF WATER - ICE / SNOW </li></ul><ul><li>PRESENT AS ICE CAPS </li></ul><ul><li>AT THE POLES OF THE EARTH </li></ul><ul><li>SNOW COVERED MOUNTAINS </li></ul><ul><li>AND GLACIERS </li></ul>
  3. 3. 2. LIQUID FORM - WATER <ul><li>PRESENT IN </li></ul><ul><li>OCEANS </li></ul><ul><li>LAKES </li></ul><ul><li>RIVERS & </li></ul><ul><li>UNDERGROUND </li></ul>
  4. 4. 3.GASEOUS FORM - WATER VAPOUR <ul><li>PRESENT IN AIR AROUND US </li></ul>
  5. 5. Cycling of water in nature <ul><li>Basic processes in water cycle </li></ul><ul><li>EVAPORATION - </li></ul><ul><li>conversion of </li></ul><ul><li>LIQUID TO GAS </li></ul><ul><li>by heating </li></ul><ul><li>CONDENSATION </li></ul><ul><li>Conversion of </li></ul><ul><li>GAS TO LIQUID </li></ul><ul><li>by cooling </li></ul><ul><li>GAS [VAPOUR ] </li></ul><ul><li>LIQUID [WATER] </li></ul>evaporation condensation heating cooling
  6. 6. WATER CYCLE
  7. 7. The process of seeping of water into the ground-INFILTRATION RAIN WATER SURFACE RUN OFF INFILTRATION SOIL WATER GROUND WATER
  8. 8. <ul><li>THE UPPER LIMIT OFSATURATED ZONE OF GROUND WATER — WATER TABLE </li></ul>WATER TABLE
  9. 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
  10. 10. Ground water is an important source of water
  11. 11. DEPLETION OF WATER TABLE <ul><li>Water table may go down </li></ul><ul><li>if the water is not sufficiently replenished. </li></ul>infiltration Consumption of ground water Ground water
  12. 12. REASONS OF DEPLETION OF WATER TABLE <ul><li>1. DEFORESTATION </li></ul>
  13. 13. 2 . SCANTY RAINFALL
  14. 14. 3.EXCESSIVE CONSUMPTION BY INCREASING POPULATION
  15. 15. <ul><li>DECREASE IN THE SEEPAGE AREA </li></ul>
  16. 16. 5. EXCESSIVE USE BY Agricultural activities
  17. 17. 6. INCREASING INDUSTRIES
  18. 18. CONSERVATION OF WATER <ul><li>AVOID WASTAGE </li></ul>
  19. 19. CONSERVATION OF WATER <ul><li>REPAIR LEAKING TAP </li></ul>
  20. 20. CONSERVATION OF WATER <ul><li>USE MINIMUM </li></ul>
  21. 21. CONSERVATION OF WATER <ul><li>REUSE /RECYCLE </li></ul><ul><li>IF POSSIBLE </li></ul>
  22. 22. WATER WISE HABITS <ul><li>DIRECT </li></ul><ul><li>USED </li></ul><ul><li>KITCHEN WATER </li></ul><ul><li>TO </li></ul><ul><li>YOUR GARDEN . </li></ul>
  23. 23. Drip irrigation for your garden
  24. 24. WATER WISE HABITS <ul><li>WASH VESSELS USING COLLECTED WATER </li></ul><ul><li>INSTEAD OF WASHING DIRECTLY UNDER TAP. </li></ul>
  25. 25. WATER WISE HABITS <ul><li>MOP THE FLOOR INSTEAD OF WASHING </li></ul>
  26. 26. WATER WISE HABITS <ul><li>TURN OFF TAP WHILE BRUSHING </li></ul>
  27. 27. RAINWATER HARVESTING <ul><li>BASIC PRINCIPLE- </li></ul><ul><li>REDUCE THE SPEED </li></ul><ul><li>MAKE </li></ul><ul><li>RUNNING WATER </li></ul><ul><li>WALK ! </li></ul><ul><li>MAKE </li></ul><ul><li>WALKING WATER </li></ul><ul><li>CRAWL !! </li></ul><ul><li>MAKE </li></ul><ul><li>CRAWLING WATER </li></ul><ul><li>STAND !!! </li></ul><ul><li>ALLOW THE STANDINGWATER TO </li></ul><ul><li>PERCOLATE !!!! </li></ul>STOP!
  28. 29. WATER PERCOLATION SURFACE RUN OFF
  29. 30. PLANTING VEGETATION
  30. 31. ROOF TOP RAINWATER HARVESTING <ul><li>RAINWATER IS COLLECTED FROM THE ROOF OF BUILDINGS AND STORED IN TANKS AFTER FILTRATION . </li></ul>
  31. 32. Roof top rainwater harvesting
  32. 33. Roof to rainwater harvesting
  33. 34. BAWRI- A TRADITIONAL WAY OF COLLECTING WATER
  34. 35. INFILTRATION PITS <ul><li>IT SOAKS WATER & DIRECT IT TO UNDER GROUND TO RECHARGE GROUND WATER </li></ul>Pit filled with gravel
  35. 36. GRASSY PATCHES & OTHER VEGETATIONS <ul><li>HELPS IN INFILTRATION </li></ul>
  36. 37. DRIP IRRIGATION - saves water <ul><li>A TECHNIQUE OF WATERING PLANTS BY USING NARROW TUBES WHICH SUPPLY WATER AT THE BASE OF PLANTS AS TINY DROPS. </li></ul>
  37. 38. DRIP IRRIGATION
  38. 40. Save every drop of water !
  39. 41. SAVE WATER ! SAVE LIFE !
  40. 42. SAVE WATER ! SAVE LIFE !
  41. 43. LABEL THE DIAGRAM SUN’S HEAT CLOUDS WATER BODY EVAPORATION CONDENSATION RAIN FALL 6
  42. 44. FILL IN THE BLANKS <ul><li>1.The solid form of water is ---------------- </li></ul><ul><li>2. the process of changing water to water vapour is called ----------------. </li></ul><ul><li>3. The process of recharging ground water can be done by ---------------------. </li></ul><ul><li>4.The source of water for bore well is ----------- </li></ul><ul><li>5.Amethod of irrigation which saves good amount of water is ------------------ </li></ul><ul><li>6. One reason for depletion of ground water is </li></ul><ul><li>is ---------------- </li></ul>ICE EVAPORATION rainwater harvesting ground water drip irrigation increase in population
  43. 45. MATCH THE FOLLOWING <ul><li>CIRCULATION OF WATER IN NATURE </li></ul><ul><li>INFILTRATION PITS </li></ul><ul><li>WATER SAVING METHOD OF IRRIGATION </li></ul><ul><li>A METHOD OF STORING RAINWATER FOR FUTURE USE </li></ul><ul><li>CAUSE OF WATER SHORTAGE </li></ul><ul><li>DEFORESTATION </li></ul><ul><li>WATER CYCLE </li></ul><ul><li>ROOF TOP RAINWATER HARVESTING </li></ul><ul><li>DRIP IRRIGATION </li></ul><ul><li>REPLENISH ground WATER </li></ul>
  44. 47. THANK YOU
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