330 likes | 452 Views
Let us start today with puzzle . Hi I am Ram . I am blue, but not the sky If you touch, I doesn’t remain Every day you taste me and like me Without me, it is difficult to survive Then who I am?. Click here for answer. Some simple questions. Which is the most valuable?.
E N D
Let us start today with puzzle Hi I am Ram I am blue, but not the sky If you touch, I doesn’t remain Every day you taste me and like me Without me, it is difficult to survive Then who I am? Click here for answer
Some simple questions Which is the most valuable? (Click on correct tab) A. a bar of gold B. a house C. a bucket of clean water D. a bag full of diamonds 1 : 2 3 4
When is world water day celebrated? (Click on correct tab) 22 February 22 March 22 June 22 December 1 2 3 4
What is the message you get from this posters? ( list 2 in your worksheet)
How much water every person requires per day ? • About 50 litres per person per day • We use water for drinking , washing, cooking and maintaining proper hygiene You can live without food for several weeks, but you would survive less than a week without water.
What you can see in this pictures? What is the condition of people ?what might be the reason for this ? ( list 2 things your worksheet )
Think about it It is estimated that in a few years from now more than One third Of people in world would face water scarcity problem
Let us see how much water is available This is picture of earth taken from space Why does most of area appears blue? (List on worksheet ) Because 71% of earth’s surface is covered by water
What is the actual amount of water available for drinking? Note down on your worksheet ------------------------ Which are the fresh water sources ? list atleast 3 on your worksheet How much percent of water is saline water? Is it useful for drinking ? Note down on your worksheet For answer click here
Identify the processes involved in water cycle. write down the processes against the corresponding number (in your worksheet) This is a water cycle Groundwater ______________________ ______________________ ______________________ ______________________ ______________________ ______________________ For answer click here
These is how we usually get water Hand pump well Tap
What is the reason for decrease in water level? ( list atleast three in your notebook ) ____________________________________________ ____________________________________________ ____________________________________________ ____________________________________________ For answer click here
How water is wasted everyday ? ( list atleast 5 things in your notebook) Leaking taps ____________________________________________ ____________________________________________ ____________________________________________ ____________________________________________ For answer click here
What difference you can make out between previous 2 pictures? List at least 4 difference in your worksheet ------------------------- ------------------------- ------------------------- Think about it How can we make this water usable?
During summer season following is the situation in my village Hi I am chintoo What might be the reason for water scarcity ? (List 2 reasons in your worksheet)
Seeing this all things Chintoo was very sad He discussed about this with his grandfather His grandfather told him a way to collect the rain water What is the method of collection of rainwater called as ? (list in your worksheet ) Rain water harvesting
What is meant by rain water harvesting? (List down in your worksheet) Click here to view video on rain water harvesting
Bawri was also the traditional way of collecting water This is called as BAWRI
Which are the different steps in rain water harvesting process or converting rain water into drinking water? List in your worksheet - Rainwater catchment ---------------------------- ---------------------------- ---------------------------- ---------------------------- ---------------------------- Rainwater catchment Sand filter Main storage tank Pump Regular water filter RO filter to make water usable for drinking
Model of rain water harvesting Click here to view video
As an individual how come we can contribute towards conservation of water ? ( List atleast 4 ways for minimising water loss in your notebook ) _________________________________________________________ _________________________________________________________ _________________________________________________________ _________________________________________________________ _________________________________________________________ For answers click here
WORKSHEET 2) Mark “T” if statement is true and “F” if it is false:- The freshwater stored in the ground is much more than that present in the rivers and lakes of the world. (T/F) b) Water shortage is a problem faced only by people living in rural areas. (T/F) c) Water from rivers is the only source for irrigation in the fields. (T/F) d)Rain is the ultimate source of water. (T/F) ;-
3) Name the factors responsible for the scarcity of water? _________________________________________________________ _________________________________________________________ _________________________________________________________ _________________________________________________________ _________________________________________________________ 4) Make a sketch of rain water harvesting model and label different parts of it For answers click here
HOMEWORK 1) Find out Different ways in which rain harvesting can be done 2)There are ten tubewells in a lane of fifty houses. What could be the long term impact on the water table? 3) what are the different water management techniques carried out to save water ?