Advertisements
Advertisements
Question
Sit near a desk. Tap the desk once with your hand. Listen carefully. Now put your ear on the desk as shown in the picture. Tap on the desk once again with your hand. Listen again. Was there any difference in the sound of the tap?
Advertisements
Solution
Yes, when I put my ear on the desk I could hear the sharper sound.
APPEARS IN
RELATED QUESTIONS
How did the ant know that the other ants were not from its group?
How did the guard ant recognise this ant?
Have you seen a dog sniffing here and there? What do you think it is trying to smell?
Name the animals that you would be able to recognise only by their smell, without seeing them?
Just like birds and dolphins you can also make your own language of sounds for giving messages. Remember you have to talk to your friends with only sounds and no words. How and when will you need to give an alarm call? For example, when the teacher is coming to the classroom!
Have you noticed that sometimes singers put their hands on their ears when they sing? Why do you think they may be doing this?
Drop some sugar, jaggery, or anything sweet on the ground. Wait until the ants come there.
Where do they go from there?
Now can you guess from what distance can an eagle in the sky can see a roti on the ground?
Do the clothes of any of your family members smell? whose?
Let’s make a paper dog
For this, you need thick paper, a pencil, scissors, sketch pen.
