Primary School (English Medium) कक्षा ४ - CBSE Question Bank Solutions for Environmental Studies

• Have you swung from a banyan tree?
• What did you hold to swing?
• Have you seen any tree which has roots growing from its branches?

Get together with 3-4 of your friends – From the list of things given, decide who will bring which thing.

A transparent glass tumbler or bottle with a wide mouth, rubber band or thread, some seeds of moong, wheat, bajra, mustard, channa (chickpeas) or rajma (red beans) and a wad of cotton wool.

Each group will work with only one kind of seed. Soak a few seeds (5-6) overnight in a bowl full of water. Take the wad of cotton wool and wet it. Put it on the mouth of the tumbler. Tie it tight to the mouth with a rubber band or thread. Remove soaked seeds from the water and place them on the cotton wool. You will have to take care that the cotton wool does not dry. Observe the changes that take place for the next 10 to 12 days. Did you observe the seedlings come out of the seeds? Draw the picture of the seedling as it looks on the fourth and the eighth day.

Write in your notebook

• What difference did you observe in the seeds after soaking? Compare with dry seeds and write.
• What do you think would happen if the cotton wool had been left dry?
• In which direction did the roots grow? And the stem?
• How big did the plant grow in the cotton wool?
• Did small plants come out from all the seeds?
• What is the colour of the roots?
• Did you see any hair on the roots?
• Try and pull out one little plant from the cotton wool. Were you able to pull it out? Why?
• Did you see how the roots grip the cotton wool? Do you think that the roots hold the soil in the same way?
• Also, look at the plants grown by your friends.

Arif and Roopali did the below activity. They saw the seedlings grow. When asked – what are the things that grow? They had very different ideas about things that grow.

Arif made a list of the following – Leaves, munna, bud, puppy, nails, fish.

Roopali’s list had – Moon, tree, I, hair, watermelon, mosquito, crow.

• What do you think? Which of these things listed by Arif and Roopali grow?
• Why don’t you make your own list of things that grow? Your list can include the names of things that are in Arif’s and Roopali’s list.

Think about yourself – in what ways have you changed over a period of time? Have you grown in any way? For example –

• Has your height increased? How much taller have you grown in the last one year?
• Imagine that you had never cut your nails! Draw a picture of your fingers in the notebook to show how they would have looked.
• What other part of your body (some people cut it regularly) keeps growing?

Do you like to eat with others?

On what occasions do you eat together with your friends?

Have you ever had a party in your class? When? What all did you do to arrange a party?

What did you and your classmates bring to the party?

What all did you eat?

Who were the people you invited for your party?

Were there some people who work in your school, whom you could not invite? Who were these people?

Did you wear any special dress for the party?

What are the things that you can do to make the party greater fun for everyone? Discuss.

• Where is the festival of Bihu celebrated?
• Which are the festivals you celebrate together with other families?
• Does everyone cook and eat together on such festivals?
• What are some of the special dishes that are cooked? How are they cooked?
• Are some special vessels used for cooking these items? What are they?
• Which is the biggest vessel that is used? Can you draw a picture of it? Can you guess how many people can eat the food that is cooked in it at one time?

Can you guess how many people must have eaten together in the village feast?

Have you ever seen the Bihu dance? Did you like it?

Find out from the students in your class, the festivals that they celebrate and the special food that they eat on these days. Who cooks the special food for festivals?

Do you wear clothes of some special colours on some festivals? Make a picture of these clothes in your notebook.

Are there special songs that are sung at different festivals in your place? Learn some of these songs and sing them in the class.

Learn some special festival dances. Perform these with your friends in your school assembly.