NCERT Solutions for Class 5 EVS Chapter 5 - Seeds and Seeds

Discuss

Q.1. What things are soaked before cooking in your house? Why?
Ans. Things that are soaked before cooking:
(i) Chana, moong
(ii) Dry pea, rajma
(iii) Soyabean
(iv) Pulses before grinding up
(v) Rice, pulses etc. before grinding

After soaking, these things swell up and become soft. Only when they become eatable. If rice, pulse etc. are soaked before cooking, they take less time in cooking and thus fuel can be saved.

Q.2. What things do you eat after sprouting.? How are they sprouted? How much time does it take?
Ans.  We eat chana, moong etc. after sprouting them. To sprout them, first, they are soaked in water and then wrapped in a wet cloth and hung up so that they get proper water and air. Chana takes about 36-48 hours to spoil while moong takes 24-36 hours.

Q.3. Has the doctor or someone you know ever told you to eat sprouts? Why?
Ans.  Yes, the doctor has advised me to eat sprouts because they are very nutritious.

Do this and find out

Q.1. 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 channas in it. Make sure that the cotton wool or cloth remains wet.
• Put the same number of channas in the third bowl. Do not anything else in it. Cover all three levels.

Observe after two days and note the changes in the bowls.
Ans.

Tell and Write

Q.1. In which bowl did the seeds sprout? What difference did you see between this bowl and other bowls?
Ans. Seeds sprouted in bowl 2 only. In bowl 2, the seeds got both air and water and thus, they sprouted whereas in bowl 1, these got only water but no air and thus they did not sprout. In bowl 3, they had no access to water and air and thus did not sprout.

Q.2. Why did Gopal’s mother tie the channa in a damp cloth?
Ans. Gopal’s mother tied the chana in a damp cloth so that they get proper water and air.

Draw

Look carefully at your sprouted chana and make its drawing.
Ans.

Write

Q1. Take a ‘clay pot’ or a ‘tin cat’ 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(till) or coriander(dhania).
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:

Ans. 
Name of the seed: Mustard (Sarson)
The date on which you planted them: December 1
The day you observe something coming out of the soil, start filling the table:

Find Out

Q.1. How long did it take for the plant to come out from the soil?
Ans. It took a week for the plant to come out from the soil.

Q.2. What were the differences in the height of the plant on the first and second day?
Ans.  The difference was half centimetres.

Q.3. On which day did the height of the plant increase the most?
Ans. On day four i.e. 11^th January, the height of the plant increased the most.

Q.4. Did news leaves come out of the plant every day?
Ans. Yes, new leaves came out of the plant every day.

Q.5. Was there any change in the stem of the plant?
Ans. Yes, the stem became thicker and thicker with each day.

Discuss

Q.1. Which seeds took the most number of days for the stem to come out of the soil?
Ans. Seeds of sesame (til) took the most number of days for the stem to come out of the soil.

Q.2. Which seeds took the least number of days to come out of the soil?
Ans. Seeds of mustard took the least number of days to come out of the soil.

Q.3. Which seed did not grow at all? Why?
Ans. All seeds grow up. However, if proper water and the air had not been provided, they would not have grown up.

Q.4. Did anyone’s plant dry up to turn yellow? Why did this happen?
Ans. Yes, a few students’ plants dried up or turned yellow since there was no proper water or air.

Q.5. What would happen if the plants do not get water?
Ans. They would dry up or turn yellow.

Straight from your heart

Q.1. What is inside the seed?
Ans. Inside the seed, there are cotyledons and embryos.

Q.2. How does a big plant grow from a tiny seed?
Ans.  The seeding absorbs water and nutrients from the ground and grows into a big plant.

Think and Imagine

Q.1 What would happen if plants could walk? Draw a picture.  
Ans.  If plants could walk then they would produce nothing like for eating, shelter and majorly oxygen.

Find Out

Q.1. Do some plants grow without seeds?
Ans. Yes, some plants like potato, rose, banana etc. grow without seeds.

So many Seeds

Q.1. 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, and textures (smooth or rough). Make a seed chart to put up in the class. You can start with a table like this.
Ans.

Think

Q.1. Did you keep aniseed (saunf) and cumin (jeera) in your list?
Ans. Yes.

Q.2. Which was the smallest seed and which was the biggest seed in your collection?
Ans. The smallest seed was cumin (jeera) and the largest seed was mango.

Make list of

Q.1. Seeds that are used as spices in your home.
Ans. Cumin, mustard etc.

Q.2. Seeds of vegetables.
Ans. Lady’s fingers.

Q.3. Seeds of fruits.
Ans. Mango, apple, papaya.

Q.4. Light seeds (check by blowing them).
Ans. Cumin (jeera)m aniseed (saunf).

Q.5. Seeds which are flat.
Ans. Rajma, apple, cumin, aniseed.

Q.6. Make more groups. How many groups of seeds did you make?
Ans.
(i) Seeds that are edible.
(ii) Seeds from which oil is extracted.
(iii) Seeds which can float on water.
(iv) Seeds which can float in air.
(v) Seeds which can stick to our body.

Q.7. Do you know any games that you can play with seeds? Discuss with your friends.
Ans. Some seeds have lots of tiny hooks which get attached to clothes or fur. Such seeds are very popular among children. Similarly, a type of flute is made from the mango seeds.

Q.8. Have you ever seen any seeds that can fly?
Ans. Yes, I have seen such seeds. It has white hair attached to it.

Q.9. What is it called in your area?
Ans. Budhiya ke baal.

Q.10. Look at your seed collection. Guess how many of those have travelled by flying?
Ans. I think seeds of cumin, aniseed and mustard may have been spreading by flying.

Q.11. Did you get any new ideas from the seeds?
Ans. Yes, these seeds can be used to play many games and also for decorative purposes.

Q.12. Look at the pictures given on textbook page 49 and guess how the seeds travel and reach different places.
Ans. In the first figure, the seed is spreading by a squirrel, in the second by a bird, and in the third by water.

Q.13. 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?'
Ans. No, I have not done anything as such.

Q.14. Think what would happen, if seeds did not spread and remained in one place only.
Ans. If the seeds did not spread out, they would fall into the parent bed itself leading to a struggle for water, minerals and sunlight. As a result, none of the plants would grow properly or survive.

Q.15. Make a list of the different ways by which seeds are spread.
Ans. Seeds are spread by:
(i) Birds and animals
(ii) Humans
(iii) Wind
(iv) Water

Q.16. What all was grown in India long ago? Were mangoes and bananas grown here? What came from other countries? Imagine food without potatoes or tomatoes?
Ans. Tea, mango, orange, radish, methi, spinach etc. were grown in India long ago. Yes, Mangoes and bananas were grown there. Tomato, potato, green chilli, cabbage, pea, coffee bean, bhindi, etc. came from other countries. If there had been no chillies in our food, the food would have been tasteless.

What we have Learned

Q.1. 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 look if they did not get the things needed?
Ans. Seeds need water and air for sprouting. If the seeds do not get water, there would be no change in them. And if they got water but not air, they would not sprout at all though they would swell up.

Q.2. How do seeds spread to far-off places? Write your own words.
Ans. Seeds are spread by birds, animals, air and water. Birds and animals throw out seeds after eating the fruit. Thus the seeds spread out. Similarly, some light seeds are spread out by the wind. Some fruits are carried out by the water, thus seeds are spread out.