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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
Plant your seeds
Take a clay pot or a tin can with a wide mouth. Make a small hole at the bottom of the can. Fill your can with soil. Put four or five seeds of the same kind in the soil and press them gently. Different groups can plant different kinds of seeds, such as mustard (sarson), fenugreek (methi), sesame (til) or coriander (dhania).
On which day did the height of the plant increase the most?
Was there any change in the stem of the plant?
Which seeds took the least days to come out of the soil?
Do some plants grow without seeds?
Did you keep aniseed (saunf) and cumin (jeera) on your list?
Which was the smallest seed and which was the biggest seed in your collection?
Make lists of :
Make more groups. How many groups of seeds did you make?
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?
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?
