Advertisements
Advertisements
प्रश्न
What do you think, the lemon floated in salty water, because ______
उत्तर
When salt is added to water, the water gets heavy. As compared to a lemon, the salty water is heavier. So, the lemon that is lighter floats on salt water that is heavier.
APPEARS IN
संबंधित प्रश्न
Ayesha put a puffed puri in a bowl of water. Would it sink or float?
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 ______
Make groups of four friends. For the experiment, you will need 4-5 glasses or bowls, spoons, water, and the things listed in the table. Take some water in each glass. Now try to dissolve one thing in one glass. Observe what happens and note it in the table.
Things | Did it dissolve or not? | What happened after keeping for 2 minutes? |
1. Salt | ______ | ______ |
2. Soil | ______ | ______ |
3. Chalk powder | ______ | ______ |
4. 1 spoon milk | ______ | ______ |
5. Oil | ______ | ______ |
Could you see the salt after it dissolved in water? If no, why?
Does that mean that now the water does not have salt? If it has, then where is the salt?
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?
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 ______
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?