WATER WATER A PRECIOUS RESOURCEA PRECIOUS RESOURCE

PRESENTED BYPRESENTED BY

TGT (SCIENCE), K V .DHARWADTGT (SCIENCE), K V .DHARWAD

CLASS VII

By Amal MostafaBy Amal Mostafa 22

THREE DIFFERENT STATES OF THREE DIFFERENT STATES OF

WATER WATER 1. 1. SOLID FORM OF WATERSOLID FORM OF WATER - - ICE / SNOWICE / SNOW

PRESENT AS ICE CAPS PRESENT AS ICE CAPS

AT THE POLES OF THE EARTHAT THE POLES OF THE EARTH

SNOW COVERED MOUNTAINS SNOW COVERED MOUNTAINS

AND GLACIERSAND GLACIERS

020

40

60

80

100

1st

Qtr

3rd

Qtr

East

West

North

By Amal MostafaBy Amal Mostafa 33

2. 2. LIQUID FORM - WATERLIQUID FORM - WATER

PRESENT IN PRESENT IN

OCEANSOCEANS

LAKESLAKES

RIVERS &RIVERS &

UNDERGROUNDUNDERGROUND

By Amal MostafaBy Amal Mostafa 44

3.GASEOUS FORM - 3.GASEOUS FORM - WATER VAPOURWATER VAPOUR

• PRESENT IN AIR AROUND USPRESENT IN AIR AROUND US

By Amal Mostafa 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]

By Amal Mostafa6

WATER CYCLE

By Amal Mostafa 7

The process of seeping of water into the ground-INFILTRATION

RAIN WATER

SURFACE RUN OFF INFILTRATION

SOIL WATER GROUND WATER

By Amal Mostafa 8

THE UPPER LIMIT OFSATURATED ZONE OF GROUND WATER— WATER TABLE

WATER TABLE

By Amal Mostafa 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

By Amal Mostafa 10

Ground water is an Ground water is an important source of waterimportant source of water

By Amal Mostafa 11

DEPLETION OF WATER TABLE

Water table may go down

if the water is not sufficiently replenished.

infiltration

Consumption of ground water

Ground water

By Amal Mostafa 12

REASONS OF DEPLETION OF WATER TABLE

1. DEFORESTATION

By Amal Mostafa 13

2 . SCANTY RAINFALL

By Amal Mostafa 14

3.EXCESSIVE CONSUMPTION BYINCREASING POPULATION

By Amal Mostafa 15

4. DECREASE IN THE SEEPAGE AREA

By Amal Mostafa 16

5. EXCESSIVE USE BY Agricultural activities

By Amal Mostafa 17

6. INCREASING INDUSTRIES

By Amal Mostafa 18

CONSERVATION OF WATER

AVOID WASTAGE

By Amal Mostafa 19

CONSERVATION OF WATER

REPAIR LEAKING TAP

By Amal Mostafa 20

CONSERVATION OF WATER

USE MINIMUM

By Amal Mostafa 21

CONSERVATION OF WATER

REUSE /RECYCLE

IF POSSIBLE

By Amal Mostafa 22

WATER WISE HABITS

DIRECT

USED

KITCHEN WATER

TO

YOUR GARDEN .

By Amal Mostafa 23

Drip irrigation for your garden

By Amal Mostafa 24

WATER WISE HABITS WASH VESSELS

USING COLLECTED WATER

INSTEAD OF WASHING DIRECTLY UNDER TAP.

By Amal Mostafa 25

WATER WISE HABITSMOP THE

FLOOR INSTEAD OF WASHING

By Amal Mostafa 26

WATER WISE HABITS

TURN OFF TAP WHILE BRUSHING

By Amal Mostafa 27

RAINWATER HARVESTINGBASIC PRINCIPLE-REDUCE THE SPEED• MAKE RUNNING WATER WALK !MAKE WALKING WATER CRAWL !!MAKE CRAWLING WATER STAND !!!

ALLOW THE STANDINGWATER TO

PERCOLATE !!!!

STOP!

By Amal Mostafa 28

By Amal Mostafa 29

WATER PERCOLATION

SURFACE RUN OFF

By Amal Mostafa 30

PLANTING VEGETATION

By Amal Mostafa 31

ROOF TOP RAINWATER HARVESTING

RAINWATER IS COLLECTED FROM THE ROOF OF BUILDINGS AND STORED IN TANKS AFTER FILTRATION.

By Amal Mostafa 32

Roof top rainwater harvesting

By Amal Mostafa 33

Roof to rainwater harvesting

By Amal Mostafa 34

BAWRI- A TRADITIONAL WAY OF COLLECTING WATER

By Amal Mostafa 35

INFILTRATION PITS IT SOAKS WATER & DIRECT IT TO

UNDER GROUND TO RECHARGE GROUND WATER

Pit filled with gravel

By Amal Mostafa 36

GRASSY PATCHES & OTHER VEGETATIONS

HELPS IN INFILTRATION

By Amal Mostafa 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.

By Amal Mostafa 38

DRIP IRRIGATION

By Amal Mostafa 39

By Amal Mostafa 40

Save every drop of water !

By Amal Mostafa 41

SAVE WATER ! SAVE LIFE !

By Amal Mostafa 42

SAVE WATER ! SAVE LIFE !

By Amal Mostafa 43

LABEL THE DIAGRAM

SUN’S HEAT

CLOUDS

WATER BODY

EVAPORATION

CONDENSATION

RAIN FALL

6

By Amal Mostafa 44

FILL IN THE BLANKSFILL IN THE BLANKS1.The solid form of water is ----------------1.The solid form of water is ----------------2. the process of changing water to 2. the process of changing water to

water vapour is called ----------------.water vapour is called ----------------.3. The process of recharging ground 3. The process of recharging ground

water can be done by ---------------------.water can be done by ---------------------.4.The source of water for bore well is 4.The source of water for bore well is

----------------------5.Amethod of irrigation which saves good 5.Amethod of irrigation which saves good

amount of water is ------------------amount of water is ------------------6. One reason for depletion of ground 6. One reason for depletion of ground

water iswater is is ---------------- is ----------------

By Amal Mostafa 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

By Amal Mostafa 46

By Amal Mostafa 47

THANK YOU