Advertisements
Advertisements
प्रश्न
On Sunday Ayesha’s cousin, brother Hamid came to her house to play. As soon as he came he asked his aunt to make his favourite shakkarpara (a sweet dish). Ammi said, “Let me come back from the market, then I will make some for you. Why don’t you help me? Take two glasses of water and put a bowl of sugar in it. Mix it till it dissolves.” Hamid thought, “Let me finish this work fast. Then I will watch TV”.
Suggest some ways to Hamid for quickly dissolving sugar.
उत्तर
Hamid should follow any of these methods:
- Stir the mixture thoroughly.
- Warm the mixture over a flame.
APPEARS IN
संबंधित प्रश्न
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 |
|
||
| Iron nail or pin | ||
| Matchstick | ||
|
||
|
Aluminum foil (from medicine packing)
|
||
|
||
| A piece of ice |
What do you think, the lemon floated in salty water, because ______
Does that mean that now the water does not have salt? If it has, then where is the salt?
Which of the two would you be able to separate from the water by straining with a cloth – salt or chalk powder?
Do you think the oil got dissolved in the water? Why do you think so?
One day Ayesha’s mother put some water to boil on the stove for making tea. She got busy with something and forgot about it. When she remembered and came to check, she found very little water left in the pan.
Think where did the water go?
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?
One day Ayesha’s mother put some water to boil on the stove for making tea. She got busy with something and forgot about it. When she remembered and came to check, she found very little water left in the pan.
Why did Chittibabu and Chinnababu keep their mango jelly in the sun?
