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प्रश्न
Reena has drawn this picture of the seed sprouted by her. What do you think the seeds need for sprouting? Write in your own words. How would Reena’s seeds look if they did not get the things needed? Show by drawing a picture.
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उत्तर
Water and air are required for the germination of seeds. The seeds would not show changes in the absence of water and air.
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संबंधित प्रश्न
What things are soaked before cooking in your house? Why?
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? |
Look carefully at your sprouted chana and make its drawing?
How long did it take for the plant to come out from the soil?
What would happen if plants could walk? Draw a picture.
Which was the smallest seed and which was the biggest seed in your collection?
Make lists of :
Seeds that are used as spices in your home.
Make lists of :
Seeds of vegetables.
Make lists of :
Seeds of fruits.
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.
