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प्रश्न
Does that mean that now the water does not have salt? If it has, then where is the salt?
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उत्तर
No, it does not mean that the water does not have salt. The salt is dissolved in water.
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संबंधित प्रश्न
Ayesha put a puffed puri in a bowl of water. Would it sink or float?
Would the cap of a plastic bottle sink or float on water?
Have you seen that something floats on water while others sink?
Find out from the other groups which things floated and which sank in the water?
After doing the experiment, fill in the blanks.
The iron nail ______ in water but the katori ______. I think this happened because ______
Do this experiment in groups of four friends. Each group will need a big pot filled with water and the things listed on the table. Put each thing one by one in water and observe. Write your observations in the table given below.
Mark [✓] for the things that float. Mark [×] for those that sink.
| Things to be put in water | I guessed before I did it | I saw when I did it |
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| Iron nail or pin | ||
| Matchstick | ||
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Aluminum foil (from medicine packing)
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| A piece of ice |
Could you see the salt after it dissolved in water? If no, why?
What difference did you see - in the water with salt, and
the water with chalk powder - after keeping for some time?
Do you think the oil got dissolved in the water? Why do you think so?
You have washed your handkerchief and you want to dry it quickly. What all can you do?
What things do you put in water to make tea? Which of those things dissolve in water?
