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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.
उत्तर
Water and air are required for the germination of seeds. The seeds would not show changes in the absence of water and air.
APPEARS IN
संबंधित प्रश्न
What things do you eat after sprouting? How are they sprouted? How much time does it take?
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? |
In which bowl did the seeds sprout? What difference did you see between this bowl and the other bowls?
When you split the whole masoor, you get me - masoor dal. But then you cannot sprout me! Can you think why?
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.
Do some plants grow without seeds?
Make lists of :
Light seeds (check by blowing them).
Make a list of the different ways by which seeds are spread.
