Secondary School (English Medium) (5 to 8) इयत्ता ५ - CBSE Question Bank Solutions for Environmental Studies

Make lists of :

Seeds of fruits.

Make lists of :

Light seeds (check by blowing them).

Make lists of :

Seeds that are flat.

Make lists of :

Make more groups. How many groups of seeds did you make?

Make lists of :

Do you know any games that you can play with seeds? Discuss with your friends.

Plants cannot move around. Once they grow, they remain in the same place. But their seeds are great travellers! They can reach far and wide. Look at the picture and see the flying seeds.

• Have you ever seen any seed that can fly?
• What is it called in your area?
• Look at your seed collection. Guess how many of those could have travelled by flying.

Plants cannot move around. Once they grow, they remain in the same place. But their seeds are great travellers! They can reach far and wide. Look at picture 1 and see the flying seeds.

Picture 1

Picture 2

What is it called in your area?

Plants cannot move around. Once they grow, they remain in the same place. But their seeds are great travellers! They can reach far and wide. Look at picture 1 and see the flying seeds.

Picture 1

Picture 2

Look at your seed collection. Guess how many of those could have travelled by flying.

Look at the picture. This seed cannot fly, but it can still travel by sticking to the fur of animals or on our clothes. In this way, it gets a free ride!

Did you get any new ideas from these seeds?

The seeds were not sure that what Hasmukh was talking about was really progress. What do you feel?

Have there been any changes near your area, which may be difficult to call ‘progress’? What changes are these? What are the different opinions about them?

What questions come to your mind about farmers and farming? Write some questions in your group and ask a farmer. For example, how many crops do they grow in a year? Which crop needs how much water?

Look at the pictures given below and guess how the seeds travel and reach different places.

Visit a farm near your area. Observe and talk to the people there. Write a report.

Some plants spread their seeds over long distances. When the soybean pods are ripe, they burst and the seeds are thrown out. Have you ever heard their sound? 

Think what would happen, if seeds did not spread and remained at one place only.

Make a list of the different ways by which seeds are spread.

What can you see in each picture on the next page?

In picture 2 you can see the bajra cobs in the mortar (okhli, used for crushing). The cobs are crushed with a pestle (moosli) and the seeds are separated from the cob. You can see the separated seeds in picture 3. Now this work is also done by big machines, like threshers. We call both these different ‘technologies’ – using our hands or big machines – to crush the seeds.

What technology could have been used to cut the stem in picture 1? What do you think is being done in the grinder (chakki ) in picture 4? What ways (technologies) would have been used to do the work shown in pictures 5 and 6? You can see that the dough is ready in picture 6. When do you think a sieve (chhalni ) would have been used? Discuss each step in detail, in any language you wish to use.

There have been many changes over time, in our food. What can this mean? Use the seed story and what you know from your elders to explain.

What would happen if all the farmers were to use only one kind of seed and grow only one kind of crop?