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प्रश्न
What things do you put in water to make tea? Which of those things dissolve in water?
उत्तर
To make tea, we add milk, tea leaves, and sugar into the water. Out of these milk and sugar get dissolved.
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संबंधित प्रश्न
You put a steel plate on water. Would it sink or float? What would happen to a spoon?
Would the cap of a plastic bottle sink or float on water?
Have you seen that something floats on water while others sink?
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 |
Take some water in a glass. Put a lemon in it. Now keep putting salt in the water, half-a-spoon at a time. Were you able to float your lemon in water?
What difference did you see - in the water with salt, and
the water with chalk powder - after keeping for some time?
Which of the two would you be able to separate from the water by straining with a cloth – salt or chalk powder?
You have washed your handkerchief and you want to dry it quickly. What all can you do?
Find out from the other groups which things floated and which sank in the water?
After doing the experiment, fill in the blanks.
The empty plastic bottle ______ on water. The bottle filled with water ______ because ______
Find out from the other groups which things floated and which sank in the water?
After doing the experiment, fill in the blanks.
The aluminium foil ______ when it was spread out. When pressed tightly into a ball it ______. This may have happened because ______
