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Question
How much do we use at a time?
| Eye drops | We use less than 1 mL at a time. |
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Solution
| Eye drops | We use less than 1 mL at a time. |
| Cough syrup | We use 5 mL at a time. |
| Tea | We use about 40 mL at a time. |
| Milk | We take about 200 mL at a time. |
| Water | We drink about 250 mL at a time. |
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RELATED QUESTIONS
Neetu has to take 3 injections a day for 5 days. One injection gives 5 mL of the medicine to your body.
- How much medicine will she need for one day?
- How much medicine in all for 5 days?

Naseem's bottle can hold ______ as much water as Abdul's bottle.
Get a 1 litre bottle (can be an empty bottle of water, oil etc.). Now collect some bottles and a mug, jug, glass, bowl, etc. at your house. Use the 1 litre bottle to check which of these holds more than 1 litre and which one holds less than 1 litre. Make a small drawing if you like.
| Less than 1 litre | More than 1 litre |
| bowl | big cooking pot |
Now look at the buckets in your house.
Guess how many litres of water they can hold.
Use a 1 litre bottle and check if your guess is right for all the buckets.
| Bucket | My guess | My measure |
| Bucket 1 | ||
| Bucket 2 | ||
| Bucket 3 |

Which is the biggest pothole?
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.
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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Chirpy crow was very thirsty. It looked everywhere but could not find water. Suddenly it saw a
pitcher (matka). When it tried to drink water, it found there was very little water in the
pitcher.
It saw
pebbles lying nearby.

It put the
pebbles into the
pitcher one by one.

The water came up
.
Chirpy drank water and flew away.

What will you do if you were at the crow's place?
I can drink 9 buckets of water at once. How many buckets can two camels drink at once?




