Secondary School (English Medium) (5 to 8) Class 5 - CBSE Question Bank Solutions for Environmental Studies

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

How did the guard ant recognise this ant?

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

How long did it take for the ants to come?

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

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

Have you seen a dog sniffing here and there? What do you think it is trying to smell?

In what ways do human beings make use of this special sense of smell of dogs?

When do you find your sense of smell helpful to you? List some examples. Like - to know by its smell that food has gone bad or that something is burning.

Name the animals that you would be able to recognise only by their smell, without seeing them?

Write the names of five things whose smell you like and five things whose smell you do not like.

Do you and your friends have similar answers?

Sushila covered her nose when she cleaned Deepak’s nappy, but not when she cleaned her daughter. Why do you think she did this?

How do you feel when you walk near a heap of garbage? Think of the children who spend the whole day picking things from such garbage.

Is a smell ‘good’ or ‘bad’ for everyone in the same way? Or does it depend on how each one feels about it?

Write the name of a bird which has eyes in front of its head (like in humans).

Write the names of some birds which have eyes on either side of the head. What is the size of their eyes as compared to the size of their head?

Close your right eye or cover it with your hand. Tell your friend to stand to your right, at some distance, and ask him to do some action (wave hand, shake the head, etc.)

Could you see your friend’s action, without moving your neck?

Close your right eye or cover it with your hand. Tell your friend to stand to your right, at some distance, and ask him to do some action (wave hand, shake the head, etc.)

Now try to look at your friend’s action with both your eyes open but without moving your neck.

Close your right eye or cover it with your hand. Tell your friend to stand to your right, at some distance, and ask him to do some action (wave hand, shake the head, etc.)

What was the difference between looking with one or both eyes?

Now toss a small ball or a coin and try to catch it. Try this with both your eyes open. Then close one eye and try to catch it. When was it easier to catch?