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प्रश्न
How does a big plant grow from a tiny seed?
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उत्तर
The seed germinates to produce a seedling. The seedling absorbs water and nutrients from the ground and grows into a big plant.
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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).
What was the difference in the height of the plant on the first and second day?
Did new leaves come out of the plant every day?
Was there any change in the stem of the plant?
Do some plants grow without seeds?
Which was the smallest seed and which was the biggest seed in your collection?
Make lists of :
Seeds that are flat.
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.
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?
How do seeds spread to far-off places? Write in your own words.
