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Question
How do seeds spread to far-off places? Write in your own words.
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Solution
(a) Seeds are spread by birds, animals, air, and water. Many animals eat fruit
and throw seeds. Thus these animals help in spreading seeds.
(b) Some seeds stick to the fur of animals and thus are transported to other places.
(c) Some seeds have thin hairs and are lightweight. These seeds float on air and travel to other places.
(d) Some seeds float on water and thus travel to far-off places.
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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? |
When you split the whole masoor, you get me - masoor dal. But then you cannot sprout me! Can you think why?
Name of the seed: ______
The date on which you planted them: ______
The day you observe something coming out of the soil, start filling the table:
| Date | Height of the plant (in cm) | Number of seen leaves | Any other change |
To find the height of a plant use thread and then measure it on the scale.
Did anyone’s plant dry up or turn yellow? Why did this happen?
What is inside the seed?
How does a big plant grow from a tiny seed?
What would happen if plants could walk? Draw a picture.
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.
Think what would happen, if seeds did not spread and remained at one place only.
