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प्रश्न
Make lists of :
Make more groups. How many groups of seeds did you make?
उत्तर
Seeds can be grouped as follows:
- Edible seeds
- Seeds that give oil
- Seeds used as spices
- Seeds floating on water
- Seeds sinking in water
- Very small seeds
- Very big seeds.
APPEARS IN
संबंधित प्रश्न
Why did Gopal’s mother tie the chana in a damp cloth?
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?
What would happen if the plants do not get water?
Do some plants grow without seeds?
How many types of seeds can you collect? Where will you find them? Each of you should try to collect as many different types of seeds as you can. After that, put all the seed collections together. Now observe these seeds carefully – their shapes, sizes, colours, textures (smooth or rough). Make a seed chart to put up in the class. You can start with a table like this.
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 the picture and see the flying seeds.
- Have you ever seen any seed that can fly?
- What is it called in your area?
- Look at your seed collection. Guess how many of those could have travelled by flying.
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?
Think what would happen, if seeds did not spread and remained at one place only.
