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Question
How much water do you think we waste through a leaking tap?
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Solution
I think about 50 litres of water is wasted through a leaking tap everyday.
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RELATED QUESTIONS
Look at these pictures. Now look for some other things we get in packets or bottles like these. Make your own list.
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| Packet | How many mL or L? |
| Milk | 500 mL |
Look what Adithyan is saying.
How much water does his small bottle hold?
Amina's water bottle holds one litre of water. She drank 250 mL of water and her friend Govind drank 150 mL. How much water is left in her bottle?
Match the Right Pairs
| About 12 liters |
(to measure milk) |
| Less than Half litre |
(water tank) |
| About 5 litres |
(bucket) |
| 1000 litres |
(eye drops bottle) |
| Half litre |
(water suraahi) |
You will need
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| Half a lemon | A pinch of salt | One spoon of sugar | One glass of water |
How to make it:
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Guess and then find out:
- How many drops of lemon juice do you get from
half a lemon? - How many drops of lemon juice do you get from
a full lemon? - How many drops of lemon juice fill one
spoon?
Find out how many 
cups of water will fill your 
bottle.
First guess and then try it out.
Now, fill a different 
bottle with the same cup.
- Which bottle holds less water?
Try it with another 
bottle.
- Which bottle holds the least water?
Select the one which holds more water.
Select the one which holds more water.
Anil is a milkman. He gives the same amount of milk at Rani's house every day. He uses a 
mug three times to fill Rani's milk pot 
.
One day Rani's mother gave her a different 
pot to take milk. Every day Rani's pot would fill to the top. But today Rani found that the pot 
was not filled completely.
Do you think Anil has given Rani less milk? Help her.
Do you want to know how the water in the 
pitcher came up?
Take two 
glasses of the same size.
Fill half of each glass with water.
You have to put tamarind (imli) seeds in the first glass to raise the
water to the top. Guess how many seeds you will need to put in.
Now, do it. Count the number of seeds used.
Now put the same number of marbles in the second glass.
What happens?
Repeat it with stones.
What happens now? Why?
Talk about it in the class.
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