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Question
Why did Gopal’s mother tie the chana in a damp cloth?
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Solution
Gopal’s mother tied the chana in a damp cloth so that seeds could get both water and air.
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RELATED QUESTIONS
Do you remember that in Class IV you did an activity with seeds? Now try another one.
- Take some chana and three bowls.
- Put five chana in the first bowl and fill it up with water.
- Put a damp piece of cloth or some cotton wool in the second bowl. Now keep the same number of chanas in it. Make sure that the cotton wool or cloth remains wet.
- Put the same number of chanas in the third bowl. Do not put anything else in it. Cover all three bowls.
Observe after two days and note the changes in the bowls.
| Bowl 1 | Bowl 2 | Bowl 3 | |
| Are the seeds getting air? | No | Yes | Yes |
| Are the seeds getting water? | |||
| What changes did you see? | |||
| Have the seeds sprouted? |
On which day did the height of the plant increase the most?
Did new leaves come out of the plant every day?
How many types of seeds can you collect? Where will you find them? Each of you should try to collect as many different types of seeds as you can. After that, put all the seed collections together. Now observe these seeds carefully – their shapes, sizes, colours, textures (smooth or rough). Make a seed chart to put up in the class. You can start with a table like this.
Make lists of :
Seeds of vegetables.
Make lists of :
Light seeds (check by blowing them).
Make lists of :
Make more groups. How many groups of seeds did you make?
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.
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.
