NCERT Class 6 Science Chapter 3 Question Answer Mindful Eating: A Path to a Healthy Body

Mindful Eating: A Path to a Healthy Body NCERT Class 6th Science Chapter 3 Question Answer

Mindful Eating: A Path to a Healthy Body Class 6 Questions and Answers

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Question 1.
Pick the odd one out and give reasons:
(i) Jowar, Bajra, Ragi, Chana
(ii) Kidney beans, Green gram, Soya bean, Rice
Answer:
(i) Chana; Reason: Chana is rich source of proteins while Jowar, Bajra and Ragi are rich sources of carbohydrates.
(ii) Rice; Reason: Rice is rich source of carbohydrates while Kidney beans, Green gram and Soya bean are rich sources of proteins.

Question 2.
Discuss traditional versus modern culinary practices in India.
Answer:
Cooking practices, also called culinary practices, have changed over time. Earlier, most cooking was done using chulha and spices were grinded using Sil-batta. Modern practices use gas stoves, electric grinders and other kitchen appliances. These changes are due to technological advancements, improved transportation and conveinence.

Question 3.
A teacher says that good food may act as medicine. Ravi is curious about this statement and has some questions for his teachers. List at least two questions that he can ask.
Answer:
(i) How individual health depends on social and mental well-being?
(ii) Justify the following statement : Meena is suffering from cholera. It is likely that the children sitting around her will be exposed to the infection. Do all the students get infected and suffer from disease. Give reason.

Question 4.
Not all delicious foods are necessarily healthy, while not all nutritious foods are always enjoyable. Share your thoughts along with a few examples.
Answer:
Delicious food is not always healthy: Like, burgers, pizzas, chats, potato chips etc. are very tasty but not
nutritious. These foods contain refined flour (Maida), spices and a lot of oil which is not good for health.
On the other hand, nutritious food may not always be delicious to eat like, boiled vegetables, pulses, leafy vegetables etc., which are not always tasty but are very good for health. These foods contain important nutrients (proteins, vitamins, minerals etc.) which help us to maintain our body strong and healthy.

Question 5.
Medu does jnot eat vegetables but enjoys biscuits, nqbdles and white bread. He often has stomach ache and constipation. What changes should he make in his diet to get rid of these problems? Explain your answer.
Answer:
Roughage is an essential component of our ‘ food. It helps our body get rid of undigested food and ensures smooth passage of stools. Medu is suffering from stomach ache and constipation because all food items that he is eating such as biscuits, noodles and white bread do not contain roughage.
He should include good sources of roughage like green leafy vegetables, fresh fruits, wholegrains, pulses in his diet to get rid of problems he is facing.

Question 6.
Reshma has trouble seeing things in dim light. The doctor tested her eyesight and prescribed a particular vitamin supplement. He also advised her to include a few food items in her diet.
(i) Which deficiency disease is she suffering from?
(ii) Which food component may be lacking in her diet?
(iii) Suggest some food items that she should Include in her diet to overcome this problem (any four).
Answer:
(i) Reshma is suffering from nigh blindness.
(ii) Vitamin-A is lacking in her diet,
(iii) She should add milk, carrot, papaya, spinach in her diet.

Question 7.
You are provided the following:
(i) Canned fruit juice.
(ii) Fresh fruit juice.
(iii) Fresh fruit.
Which one would your prefer and why?
Answer:
We would prefer fresh fruit. It contains fibre and more nutrients compared to juices which might have added sugars and preservatives.

Question 8.
Gourav got a fracture in his leg. His doctor aligned the bones and put on a plaster. The doctor also gave him calcium tablets.
On the second visit, the doctor gave him Vitamin D syrup along with calcium tablets.

Answer the following questions:
(i) Why did the doctor give calcium tablets to Gourav?
(ii) On the second visit, why did the doctor give Vitamin D syrup along with calcium tablets?
(iii) What question arises in your mind about the choices made by the doctor in giving the medicines?
Answer:
(i) The doctor gave calcium tablets to Gourav because calcium plays a crucial role in bone health and healing. When a bone is fractured, calcium is essential for the process of bone healing.
(ii) The doctor gave Vitamin D syrup along with calcium tablets on the second visit to Gourav because Vitamin D helps in calcium absorption.
(iii) One question that arises about the choices made by the doctor in giving the medicines is:
“How long does Gourav need to continue taking the calcium tablets and Vitamin D syrup?”

Question 9.
Sugar is an example of carbohydrates. Sugar is tested with iodine solution but it does not change to blue-black colour. What can be a possible reason?
Answer:
All carbohydrates do not give blue-black colour with iodine solution. This is the only starch which gives blue-black colour with iodine solution. Though, sugar is a carbohydrate but it is not a starch. So it does not give blue-black colour with iodine solution.

Question 10.
What do you think of Raman’s statement, “All starches are carbohydrates, but not all carbohydrates are starches.” Describe the design of an activity to test your answer.
Answer:
Raman’s statement is correct. To test this, perform the iodine test on different carbohydrates like rice (starch) and sugar (non-starch). Only rice will turn blue-black, confirming the presence of starch. Therefore, confirming the fact that all starches are carbohydrates, but not all carbohydrates are starches.

Question 11.
While using iodine in the laboratorys a few drops of iodine feld on Mishti’s socks and a few fell on her teacher’s saree. The drops of iodine on the saree turned blue-black while the colour on the socks did not change. What can be a possible reason ?
Answer:
Teacher’s saree contains starch,therefore the drops of iodine on the turned blue-black.On the other hand, there is no starch on Mishti’s socks. Therefore, the colour on the socks did not change.

Question 12.
Why are millets considered a healthy choice of food? Can eating just millets suffice for the nutritional requirements of the body? Discuss.
Answer:
Millets are considered a healthy choice of food because of their numerous health benefits. They are good sources of vitamins, minerals like iron and calcium, and dietary fibers as well. That is the reason they are also called nutri-cereals. Yes, eating just millets can suffice for the nutritional requirements of the body as they are multi-cereals and also contribute to a balance diet.

Question 13.
You are given a sample of a solution. How would you check the possibility of it being an iodine solution?
Answer:
We can check whether the given solution is iodine solution or not by adding a small amount of starch in it. If the solution on adding starch turns blue-black then the solution is iodine solution. If the solution does not turn blue-black then the solution is not iodine solution.

NCERT Solutions for Class 6 Science Chapter 3 Fibre to Fabric

Topics and Sub Topics in Class 6 Science Chapter 3 Fibre to Fabric:

Section Name	Topic Name
3	Fibre to Fabric
3.1	Variety in Fabrics
3.2	Fibre
3.3	Some Plant Fibres
3.4	Spinning Cotton Yarn
3.5	Yarn to Fabric
3.6	History of clothing material

Class 6 Science Chapter 3 Textbook Questions Solved

Q.1. Classify the following fibres as natural or synthetic: nylon, wool, cotton, silk, polyester, jute.
Ans. Natural fibres: wool, cotton, jute, silk.
Synthetic fibres: nylon, polyester.

Q.2. State whether the following statements are ‘true’ or false’:
(a) Yam is made from fibres.
(b) Spinning is a process of making fibres.
(c) Jute is the outer covering of coconut.
(d) The process of removing seeds from cotton is called ginning.
(d) Weaving of yam makes a piece of fabric.
(e) Silk fibre is obtained from the stem of a plant.
(g) Polyester is a natural fibre.
Ans.
(a) True
(b) False
(c) False
(d) True
(e) True
(f) False
(g) False

Q.3. Fill in the blanks:
(a) Plant fibres are obtained from____________ and___________ .
(b) Animal fibres are___________ and___________ .
Ans.
(a) cotton plants, jute plants
(b) wool, silk

Q. 4. From which part of the plant cotton and jute are obtained?
Ans.
(i) Cotton – Cotton bolls (from the surface of cotton seeds) (fruit)
(ii) Jute – Stem

Q.5. Name two items that are made from coconut fibre.
Ans.
(i) Ropes
(ii) Mats

Q.6. Explain the process of making yam from fibre.
Ans. Yarns are made up of thin strands called fibres. The process of making yam from fibres is called spinning. In this process, a mass of cotton wool are drawn out and twisted. This brings the fibres together to form yarn.

Class 6 Science Chapter 3 VERY SHORT ANSWER TYPE QUESTIONS

Q.1. Name two varieties of cloth materials which are commonly used.
Ans. Cotton, silk/wool.

Q.2. What are fabrics?
Ans. Fabrics mean a woven material, textile or other materials resembling woven cloth.

Q.3. Name some fabrics in your surroundings.
Ans. Bed-sheets, blankets, curtains, table clothes, towels and dusters.

Q. 4.  Name the thing which is used to make fabric.
Ans. Yarns.

Q.5. What are yarns made of?
Ans. Yarns are made up of thin strands called fibres.

Q.6. How many types of fibres are there?                                                        ,
Ans. There are two types of fibres:
(i) Natural fibres
(ii) Synthetic fibres

Q.7. Name two natural fibres.
Ans.
(i) Cotton
(ii) Jute

Q.8. Name two synthetic fibres.
Ans.
(i) Polyester
(ii) Nylon

Q.9. What material you use for making wicks for oil lamps?
Ans. Cotton wool.

Q.10. Where does cotton wool come from.?
Ans. Cotton wool comes from cotton bolls.

Q.11. What are fruits of cotton plants called?
Ans. Cotton bolls.

Q.12. What type of soil is used to grow cotton plants?
Ans. Black soil.

Q.13. Define ginning of cotton.
Ans. The process of separating fibres from the seeds of cotton is called ginning of cotton.

Q.14. What is jute?
Ans. Jute is a fibre obtained from the stem of a jute plant.

Q.15. Name the states where jute plants are mainly grown in India.
Ans. West Bengal, Bihar and Assam.

Q.16. What is spinning?
Ans. The process of making yarns from fibres is called spinning.

Q.17. Name two hand-operated devices used for spinning.
Ans.
(i) Takli
(ii) Charkha

Q.18. How are fabrics prepared?
Ans. Fabrics are prepared from the yarns by weaving or knitting.

Q. 19. Name the process used to prepare fabrics from yams.
Ans. The processes which used to prepare fabrics are: (i) Weaving and (ii) Knitting.

Q.20. What is weaving?
Ans. The process of arranging two sets of yarns together to make a fabric is called weaving.

Q.21. What is knitting?
Ans. The process in which a single yarn is used to make a piece of fabric is called knitting.

Q.22. Name two methods of knitting.
Ans.
(i) By hands
(ii) By machines

Q.23. Where were the cotton and flax plants cultivated in ancient Egypt?
Ans. Cotton and flax plants were cultivated near the river Nile in ancient Egypt.

Q.24. Name some modem fabrics formed by unstitched piece of fabric. .
Ans. Saree, dhoti, lungi and turban.

Q.25. How are natural fibres better than synthetic fibres?
Ans. The natural fibre absorbs sweat, gives cooling effect and comfort in any season.

Q.26. Are all fibres produced by plants?
Ans. No.

Q.27. Cotton on burning gives paper burning smell and cotton is obtained from plants. Is paper also obtained from plants?
Ans. Yes, paper is also obtained from plants.

Class 6 Science Chapter 3 SHORT ANSWER TYPE QUESTIONS

Q.1. What do you observe when you are visiting a nearby tailoring shop?
Ans. In a tailoring shop we observe that there are many cuttings of fabrics left over after stitching. We see that some cuttings are of cotton, some are of silk or wool and some are of synthetic fibres.

Q.2. List the steps involved in the preparation of fabric.
Ans. The following steps are involved in the preparation of fabrics:
(i) Obtaining fibre,
(ii) Preparation of yarn from fibres by spinning,
(iii) When two sets of yarn are involved, yarns are woven on looms to make a fabric. When a single yam is used, the fabric is prepared by knitting.

Q.3. What are natural fibres? Explain with examples.
Ans. The fibres obtained from plants and animals are called natural fibres. For example, cotton from cotton bolls, jute from jute plant, silk from cocoon of silkworm and wool from hair of animals like sheep or goat.

Q.4. What are synthetic fibres?
Ans. The fibres which are made from chemical substances or which are not obtained from the plant and animal sources are called synthetic fibres. For example, polyester, nylon, and acrylic, etc.

Q.5. Explain how jute is obtained from the jute plant.
Ans. The jute plant is normally harvested at flowering stage. The stems of harvested plants are bundled and immersed in water for 10 to 15 days. The stems rot (the process is called retting) and fibres are separated by hand. These fibres are converted into yarns to make fabrics (Fig. 3.10).

Q. 6. What are looms?
Ans. The devices on which weaving of fabrics takes place are called looms. The looms are either hand operated or power operated.

Q. 7. What happens when a yam from a tom sock is pulled?
Ans. When we pull a yarn from a torn sock then a single yarn, gets pulled out continuously as the fabric gets unravelled. Socks are made up of knitted fabrics from a single yam.

Q. 8. What were the materials used by people in ancient times in place of clothes?
Ans. It appears that in those days people used the bark and big leaves of trees or animal skin and furs in place of clothes.

Q. 9. What happened when people began to settle in agricultural communities?
Ans. When people began to settle in agricultural communities then they learnt to weave twigs and grass into mats and baskets. Vines, animal fleece or hair were twisted together into long strands. These strands were woven into fabrics.

Q. 10. When we bum wool why do we get the smell of hair bum?
Ans. Wool is obtained from the fleece (hair) of sheep, goat, yak etc. This is the reason why burning of wool resembles the burning of hair.

Q. 11. When we bum nylon, why we do not get the smell of burning paper or burning hair?
Ans. Nylon is a synthetic fibre made from chemicals. On burning nylon these chemicals don’t produce the smell of burning paper or hair which are natural substances.

Class 6 Science Chapter 3 LONG ANSWER TYPE QUESTIONS

Q.1. Describe the process of the formation of yam from cotton wool.
Ans. The cotton wool is obtained from cotton plants. The cotton plants are grown in fields. They are usually grown at the places having black soil and warm climate. The fmits of the cotton plants called cotton bolls are about the size of lemons. After maturing, the bolls burst open and seeds covered with cotton fibres can b,e seen. From the cotton bolls cotton is picked by hands. Fibres are then separated from the seeds by combing. This process is called ginning of cotton. It is done by hand or by machines. These fibres are then converted into yam.

Q.2. Describe the process of spinning and weaving.
Ans. Spinning: The process of making yarn from fibres is called spinning. In this process fibres from a mass of cotton wool are drawn out and twisted. By this fibres come together to form a yarn. Spinning can be done by hand, by takli and charkha. On a large scale, spinning is done with the help of machines.
Weaving: The process of arranging two sets of yarns together t6 make a fabric is called weaving. The process of weaving can be done on looms. The looms are either-hand operated or power operated.