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NCERT · Class 5 · EVS

Chapter 1: Super Senses

Practice each question, then open the answer or worked solution.

Questions

16 questions
Q1Written answer

How did the ant know that the other ants were not from this group?

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Worked solution

Answer: Animals also have different senses. They can see, hear, taste, smell and feel. By using these senses, the ants could identify that the other ants were not from this group.

Q2Written answer

How did the guard ant recognize this ant?

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Worked solution

Answer: By using its smelling sense, the guard ant could recognize this ant.

Try this and write

Drop some sugar, jaggery or anything sweet on the ground. Wait until the ants come there.

Q1 (2)Written answer

Q1. How long did it take for the ants to come?

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Worked solution

Answer: Within minutes, the ants surrounded the dropped sweets.

Q2 (2)Written answer

Q2. Did one ant come first or a group of ants came together?

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Worked solution

Answer: A single ant came first, and then a group of ants followed it.

Q3Written answer

What did the ants do with the food?

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Worked solution

Answer: The ants carried away the food to its hole.

Q4Written answer

Where do they go from there?

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Worked solution

Answer: The ants went back to their hole from there.

Q5Written answer

Do they move in a line?

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Worked solution

Answer: Yes, one ant follows the other and hence goes in a line.

Now carefully, without harming the ants, block their path for a while with a pencil.

Q6Written answer

Now observe, how do the ants move?

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Worked solution

Answer: Even after blocking their path, the ants climb up the pencil and move in a straight line.

Q7Written answer

Now can you guess why the ants behaved like that when you blocked their path?

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Worked solution

Answer: As the ants move, they leave a smell on the ground. The other ants follow the smell to find the way. So when their path was blocked, the ants tried to keep their path by following the smell.

Q8Written answer

Have you ever been troubled by mosquitoes? Just think, how do they know where you are?

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Worked solution

Answer: Mosquitoes can sense the smell of a human body. They also find us by the smell of the sole of our feet and the heat of our body.