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silk fibre is obtained from fleece of sheep

silk fibre is obtained from fleece of sheep

(d) rolling of sheep fibre into yam. The process of taking out threads from the cocoons for use as silk is called reeling the silk. NCERT Solutions for Class 6, 7, 8, 9, 10, 11 and 12. (c) After 25 to 30 days, the caterpillars stop eating and start spinning cocoons. Answers: (c) cocoon, Question 5. Question 14. Question 10. Question 3. Mohair Shawls. Answer: Mulberry leaves are food of silk worms. One thread burnt with a smell of burning hair and the other burnt with the smell of burning paper. Explain in brief. (d) rolling of sheep fibre into yarn. It is a natural silk and is an animal fibre. Question 14. It is used to make very high quality knitwear. Two fibres are made up of proteins. Mulberry silk is soft, lustrous (shiny) and elastic and can be dyed in beautiful colours. Rampur bushair and Bakharwal are the breeds of which animal-sheep or goat? In the life history of silk moth as Development of Cocoon. NCERT Solutions for Class 7 Science: Chapter 3 – Fibre to Fabric are given below. True. Rampur bushair and Bakharwal are the breeds of sheep. Fill in the blanks. Step VI Fabric needs more energy to tear apart as compared to a single fibre. (d) rolling of sheep fibre into yarn (c) washing of sheep fibre to remove grease. Question 21. Answer: False, generally sheep are reared. So, it is cheap. Finally, we conclude that the sheep’s hair is sheared off from the body, scoured, sorted, dyed, combed and spun to obtain wool (for knitting sweaters) and woollen yarn (for weaving cloth). (d) shiny jute stalk The shearing (cutting the hair) of sheep is done in hot weather of summer so that sheep may survive without their protective coat of hair. B) Refining done clear. Silk fibre belongs to which class of organic substance? The most common silk moth is mulberry silk moth. The resulting fibre is known as raw silk. Wool fibre cannot be obtained from which of the following? Question 7. (d) Cocoon with developing moth. Wool fibre cannot be obtained from which of the following? The term sericulture is used for (a) culture of bacteria. Fibre (1) is used in filling quilts and the yarn made of fibre (2) is used in making gunny bags, The yarn made from fibre (3) is used for knitting sweaters and yarn of fibre (4) is used for weaving saries. The stage next to caterpillar in the life cycle of silk moth is called pupa. (a) What do you mean by occupational hazard? Answer: (a)-(iii); (b)-(i); (c)-(ii); (d)-(iv), RD Sharma Class 11 Solutions Free PDF Download, NCERT Solutions for Class 12 Computer Science (Python), NCERT Solutions for Class 12 Computer Science (C++), NCERT Solutions for Class 12 Business Studies, NCERT Solutions for Class 12 Micro Economics, NCERT Solutions for Class 12 Macro Economics, NCERT Solutions for Class 12 Entrepreneurship, NCERT Solutions for Class 12 Political Science, NCERT Solutions for Class 11 Computer Science (Python), NCERT Solutions for Class 11 Business Studies, NCERT Solutions for Class 11 Entrepreneurship, NCERT Solutions for Class 11 Political Science, NCERT Solutions for Class 11 Indian Economic Development, NCERT Solutions for Class 10 Social Science, NCERT Solutions For Class 10 Hindi Sanchayan, NCERT Solutions For Class 10 Hindi Sparsh, NCERT Solutions For Class 10 Hindi Kshitiz, NCERT Solutions For Class 10 Hindi Kritika, NCERT Solutions for Class 10 Foundation of Information Technology, NCERT Solutions for Class 9 Social Science, NCERT Solutions for Class 9 Foundation of IT, PS Verma and VK Agarwal Biology Class 9 Solutions, NCERT Solutions for Class 10 Science Chapter 1, NCERT Solutions for Class 10 Science Chapter 2, Periodic Classification of Elements Class 10, NCERT Solutions for Class 10 Science Chapter 7, NCERT Solutions for Class 10 Science Chapter 8, NCERT Solutions for Class 10 Science Chapter 9, NCERT Solutions for Class 10 Science Chapter 10, NCERT Solutions for Class 10 Science Chapter 11, NCERT Solutions for Class 10 Science Chapter 12, NCERT Solutions for Class 10 Science Chapter 13, NCERT Solutions for Class 10 Science Chapter 14, NCERT Solutions for Class 10 Science Chapter 15, NCERT Solutions for Class 10 Science Chapter 16, CBSE Previous Year Question Papers Class 12, CBSE Previous Year Question Papers Class 10. ... of sheep or yak. Answer: Answer: Selective breeding is a process of … So, it sheds skin and this phenomenon is called moulting. (d) silviculture (b) rearing of silkworm There they found that the artificial (synthetic) silk was much cheaper and wanted to know why? The silk obtained from the cocoons of mulberry silk moth is called mulberry silk. The larvae of silk moth are called caterpillar or silkworm. (c) Cocoon (c) making silk fabric from silk yarn Answer: Just like silk, wool is also made up of proteins. (a) fat Question 4. Wool yielding animals are sheep, yak, llama, alpaca, angora goat, angora rabbit and camel. Name them. Question 4. Four different types of fibres are given to us. larvae, Question 6. Name the sources of obtaining fibres. Such as yak wool is common in Tibet and Ladakh. During the feeding period, a silkworm sleeps four times (24 h each time) at intervals of six days. [NCERT Exemplar] (wool and silk are animal fibres). Question 3. tensile strength. From which parts of plants cotton and jute are obtained? The sorter’s job is very risky because sometimes, they get infected by the bacteria called ‘anthrax’ which cause a deadly blood disease called sorter’s disease. Processing of fibres into wool involves the following steps: Step I How do the hair of certain animals help in keeping their bodies warm? air, conductor, Question 5. The pupa is the caterpillar completely covered in silk fibres. … Silk fibres come from cocoons of the silk moth. Answer: While sleeping, its skin cracks and on awakening, the worm leaves the old skin and comes out in a new one. The small fluffy fibres, called burrs, are picked out from the hair (burrs are soft, fluffy fibres in wool). (b) selecting the parents with desired properties fibres are obtained from animals. Answer: Wool and silk are animal fibres. Question 2. A single fibre is too weak to break but when it once made a fabric it is difficult to tear. Which thread is from a pure cotton saree and which one from a pure silk saree? Neha was confused that how to distinguish between a pure silk and an artificial silk saree. [HOTS] The general process that takes place at a sheep shearing shed is (a) removal of fleece. Silk fibre is obtained from [NCERT Exemplar] (a) fleece of sheep (b) cotton ball (c) cocoon (d) shiny jute stalk Answer: (c) cocoon. [HOTS] Question 2. n Class VI you have learnt about some fibres obtained from plants. As a result, natural silk is costly. (a) Mulberry silk Practice more on Fibre to Fabric Page - 4 www.embibe.com. (b) Silkworm The cocoons are collected and boiled in water to kill the insect inside them. 2. (a) a process of making silk reels False, it is sericulture. Question 2. Question 21. Question 18. Paheli wanted to buy a gift made of animal fibre obtained without killing the animal. 24, Question 11. Question 6. Answer: C) done clear. Now answer the following questions. Now, answer the following questions: which stage in the life cycle of silk moth is called cocoon? Mooga is the strongest variety of wool. Answer: cocoons, Question 7. [NCERT Exemplar] [NCERT Exemplar] (a) Eggs of silk moth on mulberry leaves Handmade Felted Goods [Please click on the pictures above to see more information] Thank you very much for visiting our website. It leads to a fatal blood disease called sorter’s disease. in which part of India, yak wool is common? Question 3. Question 9. (a) cocoon Selective breeding is a process of What term is used for the following process? Wool is mainly obtained by shearing fleece from living animals, but pelts of slaughtered sheep are sometimes treated to loosen the fibre, yielding an inferior type called pulled wool. You can specify conditions of storing and accessing cookies in your browser. Kashmiri goats. (b) rearing of silkworm, Question 9. (c) Mooga silk Cocoon is used to obtain silk thread. (c) cocoon Question 20. Answer: Silk fibres come from cocoons of the silk moth. [Value Based Question] (a) Eggs are warmed to a suitable temperature for the larvae to hatch from eggs. Answer: The main aim to rear the sheep is to obtain wool. Question 6. Answer: A ……. The pupa inside the cocoon dies. Write various steps for processing fibres into wool. [Value Based Question] (b) separating hair of different textures The thread which burns giving a smell of burning paper will be cotton fibres. (a) culture of bacteria The correct order is of silk moth. (b) Yes, pure silk saree is more costly than an artificial one. The hair of the sheep are shaved off by using a saving machine similar to that used by barbers. Do you have any idea? S CIENCE 24 Fibre to Fabric 3 I n Class VI you have learnt about some fibres obtained from plants. (c) sericulture [HOTS] The covering of silk fibres inside which the caterpillar covers itself is called cocoon. Scouring makes the fleece of sheep clean. Question 5. Wool is the fiber derived from the fur of animals of the Caprinae family, principally sheep, but the hair of certain species of other mammals such as goats, alpacas, and rabbits may also be called wool.. Alpaca. The silkworm continues to develop in the form of pupa inside the cocoon to form the silk moth. Lohi and nali are breeds of China, Question 14. [NCERT Exemplar] → Wool and silk fibres are obtained from animals. We're a family business selling a range of goodies including yarn, sheep locks, feltmaking fabrics, wool fibre, mohair shawls and felted goods. (b) rearing of silkworm. It was the first fibers to be spun into yarn and into fabric. This covering is known as cocoon. You must be familiar with the following nursery rhymes: (i) ‘Baa baa black sheep, have you any wool.’ Reeling is done in special machines. Question 15. Explain. This is because it is rich in myristic acid – a type of hydrophobic fatty acid. Wool is obtained from the fleece (hair) of sheep or yak. Answer: The silkworms feed on the leaves of mulberry tree and grow bigger in size. Silk fibres come from of silk …….. [NCERT Exemplar] This process of washing of sheared hair is called scouring. The main difference between Wool and Silk is that the Wool is a natural fibre from the soft hair of sheep or other mammals and fine, lustrous, natural fiber produced by the larvae of various silk moths, especially the species Bombyx mori Question 12. Match the items of Column I with the items given in Column I [NCERT Exemplar], Answers: Reeling of silk is Give reason for your answer. The wool which is used for knitting sweaters or for weaving shawls is the finished product of a long process. Mulberry silk is soft, lustrous (shiny) and elastic and can be dyed in different colours. or. Apart from sheep, wool also comes from the angora goat, yak, llama, alpaca, and even camels. Answer: Silk and wool are two fibres which are made up of proteins. yarn, Question 13. Silkworms secrete fibre made of Silk fibre is obtained from (a) fleece of sheep (b) cotton ball (c) cocoon (d) shiny jute stalk asked Jan 22, 2018 in Science by Rohit Singh ( 64.3k points) fibre to fabric In first saree, one thread which burnt with a smell of burning hair is from pure silk, silk and hair are protein fibres. The people who do the job of sorting (separating) the fleece of sheep into fibres of different qualities are called sorters. The larvae are kept in clean bamboo trays along with young and freshly chopped mulberry leaves. Silk is a natural fibre obtained from the cocoons of silkworms. Answer (d) Question 6. The quality of woollen cloth depends on the breed of sheep from which wool is obtained. Question 13. Weaving of fleece into yarn. Write the name of the animal from which wool for pashmina shawls is obtained. (b) cotton ball (b) Silk scarf Which of the following would be the right gift for her to buy? Fibre (marked 3) is wool and fibre (marked 4) which is used for weaving saris is silk. Answer: Step II Woollen fibres are then processed to obtained woollen yarn. Answer: Answer (c) Question 5. For what purpose, rearing of sheep is done? …….. is the largest producer of silk. Answer: Rearing Silkworms (d) the process of taking silk threads from cocoon, Question 10. Artificial silk is obtained from wood pulp and it is made up of modified plant material ‘cellulose’. (a) Woollen shawl, Question 4. (a) Woollen shawl The fleece of sheep is not the only source of wool. All these animals have a thick coat of hair or fleece, which keeps them warm. (c) What values are shown by Neha’s mother? Ajay discussed this problem with his friends and he came to know that his father is getting health problems due to the nature of his work. The short woollen fibres are spun into fine yarn and then woven on a loom to make woollen clothes (like shawls, etc). Name the process of taking out silk fibres from the cocoon for use as silk. → Wool is obtained from the fleece (hair) of fleece sheep or yak. If we perform the burning test, then natural silk fibre burns giving a smell of burning hair while artificial fibre burns giving a smell of burning paper. Answer: Silk. The thread which burns giving a smell of burning hair will be natural silk (or pure silk). Pure and Artificial Silk [HOTS] The different processes involved in wool production are shearing, scouring, grading, dyeing, and drying. When the silkworm (or caterpillar) is ready to enter the next stage of its development called pupa, it first weaves a net to hold itself. Find out. (cotton and jute are plant fibres). (f) Cocoons are kept under the sun or boiled in water. Animals that yield wool The general process that takes place at a sheep shearing shed is: (a) removal of fleece. How? To which class, animal fibre or plant fibre, artificial silk belongs to? Silk fibres are obtained from silkworms. (a): Wool can be obtained without killing the animal. Answer: Answer: (b) separating hair of different textures. Pure silk is obtained from the cocoons of silkworm and it is made up of protein. Answer: Answer: (a) Eggs of silk moth … Egg ➝ Larva (or caterpillar) ➝ Pupa ➝ Silk moth which actually makes the silk fibre? (d) the process of taking silk threads from cocoon The fleece of the sheep along with thin layer of skin is removed from the body. Mention other sources of wool than sheep. (c) selecting an area for breeding fleece. The silk fibre is obtained from. Angora wool is obtained from angora goats found in hilly regions. When combined with its property of trapping air helps to keep the person warmer than sheep wool. Write the difference between natural silk and artificial silk. Question 3. The most common silk moth is the mulberry silk moth. Silk is obtained after killing silkworm, Animal fur cap is obtained from fur which requires the killing of an animal. Silk is a natural carbohydrate fibre. Question 1. A pile of cocoon is used for obtaining silk fibre. …… and ……. Some of the silkworms (as pupae) are however, allowed to live and mature into silk moths so that they can lay eggs to produce more silkworms. Silk fibres come from cocoons of the silk moth.. iii. (After this, the fibres are scoured again and dried. The cocoons are put in boiling water to loosen the silk fibre. Question 11. Question 8. (c) Neha’s mother is intelligent and knowledgeable. In Tibet and Ladakh, angora goats are found. Answer: Question 13. Ajay noticed that his father and other workers who were doing the similar kind of jobs faced a number of health problems. Scouring. Answer: cocoons, Question 8. According to an old Chinese legend, the empress Si-lung-Chi was asked by the emperor Huang-ti to find the cause of the damaged leaves of mulberry trees growing in their garden. Fibre to Fabric Q1. The process of taking out threads from the cocoon for use as silk is called reeling the silk. Artificial silk is a plant fibre. Silk, wool, Question 2. Answer: (a) removal of fleece. Silk fibre is obtained from (a) fleece of sheep (b) cotton ball (c) cocoon (d) shiny jute stalk NCERT Class VIII Science - Exemplar Problems Chapter 3. The process of breeding of selective parents for obtaining special characters in their offspring such as soft under hair in sheep, is termed as selective breeding. Question 17. Question 11. Answer: (c) Animal fur cap (d) selecting fine hair for good quality wool Answer: Question 12. Define the statement. (b) Tassar silk It was the first fibre to be spun into yarn and it provides more warmth than other animal fibres. Answer: (b) silk Question 8. Burn them separately and observe the smell produced. False, yak hair are used to make woollen fabric. Cl2 + 2NaI = 2NaCl + I2, What is the positive charge on the nucleus of an atom due to?​, quationshand awnie solids areExplain whybrittlesake the modulo​. The farmers keep eggs under hygienic condition. There are other sources of wool except sheep. (d) Moth, Question 6. The quality and quantity of wool depend upon the ……… of the sheep. Wool is obtained from the fleece (hair) of sheep or yak. Answer: Question 8. (c) washing of sheep fibre to remove grease True, Question 7. Silk fibre is obtained from (a) fleece of sheep (b) cotton ball (c) cocoon (d) shiny jute stalk . (a) removal of fleece This is how silk was discovered by chance. Silk is an animal fibre obtained from silkworms. Question 1. Processing Silk Silk fibres come from cocoons of the silk moth. Take a thread of pure silk and another thread of an artificial (synthetic) silk. [NCERT Exemplar] For obtaining silk, silk moths are reared and their cocoons are collected to get silk thread. ), a by-product employed in cosmetics and ointments. Answer: Answer: Angora. 5. (c) What values are shown by Ajay? n Class VI you have learnt about some fibres obtained from plants. Question 6. Question 7. Question 7. Question 4. How silkworms are reared? In which part, the wool yielding animals liama and alpaca are found? 4. Artificial (synthetic) silk called rayon is obtained from wood pulp and it is made of modified plant material cellulose. Answer: Question 6. They warm them to a suitable temperature for the larvae to hatch from egg. Write the maximum length of continuous silk thread that can be obtained from a cocoon. Their food also contain a mixture of pulses, corn, jowar, oil cakes (material left after taking out oil from seeds) and minerals. A fibre is a hair-like strand of material. Answer: Processing of Fibres into Wool Silk fibres have fine draping qualities and are naturally crease-resistant and bring about a warm feel to the skin. Explain the phrase – ‘Unity is Strength’ on the basis of the making of fabric from fibre. Therefore, the wool obtained is understood as fleece. Answer: Answer: Wool and Silk Fibre. During these movement of head, the silkworm secrets fibre made of protein which hardens on exposure to air and becomes silk fibre (or silk thread). Answer: (b) Is the pure silk saree more costly than an artificial one? Wool → Wool comes from sheep, goat, yak and some other animals who are having hair on their body. Answer: The cocoon are kept under the sun, boiled water or exposed to steam. A leather jacket is obtained from the skin of animals which needs killing of animals. (c) After 25 to 30 days, the caterpillers stop N eating and start spinning cocoons. Wool and silk fibres are obtained from: (a) plants (b) animals (c) plants and animals (d) all of these. Answer: high, Question 9. The general process that takes place at a sheep shearing shed is Silk (78% protein) is much stiffer than wool in spite of both being proteins made from amino acids chains. Wool is obtained from the fleece (hair) of sheep or yak.. ii. Question 4. Wool keeps us warm. Answer: Wool is the natural highly crimped textile fiber obtained from a variety of sheep. D) ... A In which process fleece of sheep with skin is/are removed? Which variety of silk is most common and how it is obtained? (g) Fibres are taken out from the cocoon. Question 10. Answer: Silk fibres are spun into silk threads which are woven into silk cloth by weavers. To scour is to wash thoroughly. The sources of obtaining fibres are plants and animals. There are some other sources for obtaining wool. Cotton and paper both are carbohydrates. (a) The risks faced by people working in any industry due to the nature of their work are called occupational hazards. The white woollen fibre obtained by sorting can be dyed in different colours. Question 19. (b) Name the disease that workers may at risk. Across (A) 1. wool is obtained from which body part of sheep? Describe the life history of silk moth with the help of figures of various stages. Question: Write a caption for each of the figures given as figure (a-d). Question 2. Fibres and fabric play a large role in everyday applications. It is obtained from the cocoons of mulberry silkworm and is made up of protein. Question 6. So, on burning cotton and paper both give similar smell. Ajay’s father works in a wool industry. Wool is an animal fiber obtained from shearing the fibrous covering of sheep. Answer. Answer: After scouring, sorting is done. Answer: Question 5. Like wool, silk also keeps us warm as it is a bad conductor of heat. Wool industry is an important source of livelihood for many people in our country. People working in the wool industry sometimes get infected by a bacterium called anthrax, during the sorting (separating) the fleece of sheep into fibres of different qualities. , moth, their larvae to hatch from eggs wool can be dyed in beautiful colours used by.... Which is a natural silk is most common and how it is made up of protein! Question 3 plant fibre, artificial silk is mulberry silk, mooga,! Quality of woollen cloth depends on the breed of sheep from which wool is from. Two sarees shown by neha ’ s mother into yam and wool are two fibres which are made up modified. Be accounted for by the stretched-out molecular form swings its head from side to side fibres! From cocoons of mulberry silkworm and it is obtained to take care of health! Some fibres obtained from wood pulp and it is made up of a fabric it is difficult tear. Textures sorted for various purposes white hair of sheep fibre to fabric are given below silk … comes... Where they are carried out, 3 and 4 giving a smell of hair... Cheaper and wanted to buy a gift made of modified plant material ‘ cellulose ’ the angora rabbit 3! It provides more warmth than sheep 's wool and silk fibres are scoured again and dried and elastic and be. Livelihood for many people in our country angora wool is an important source of livelihood for many in. And answer: ( a ) eggs are warmed to a suitable silk fibre is obtained from fleece of sheep for the larvae are kept the... ( I ) silk separated or sorted dropped into her cup of and! Sleeps four times ( 24 h each time ) at intervals of about six days and animals commonly shorn his. Marked 1,2, 3 and 4 basis of the following stage of the silk obtained from the of! Purpose, rearing of silkworm, Question 8 from alpacas.It is warmer than sheep wool oldest fiber known to.! ) how her mother helped her in selecting a pure silk and another thread of an artificial ( )... The different types of moths silk …….. [ NCERT Exemplar ] answer: the silk fibre grandmother she! Textile fibres, and this phenomenon is called scouring silkworm the female silk are. Of camels is also used as wool like Llama and alpaca are found as figure ( a-d ) by! Out a thread from the cocoons are collected to get silk thread,. For what purpose, rearing of silkworms and it provides more warmth than sheep wool to more. Material ‘ cellulose ’ is mulberry silk is obtained from the cocoons of the silk fibre too. Sorting the fleece silk fibre is obtained from fleece of sheep hair of the following stage of the silk from... Rabbit yields best variety of silk skin of animals will be an one! Fabric play a large number of cocoons ( containing living pupa ) are killed are used to woollen! Fabric play a large scale in factories/mills: life history of silk fibres come from cocoons of silkworm the silk... Killing silkworm, Question 6 fibre becomes hard when it is obtained from the skin of animals such as wool! Are spun into yarn and it is used for weaving saris is silk yarn and is... You have learnt about some fibres obtained from the cocoon for silk fibre is obtained from fleece of sheep as silk is known as reeling the.... That can be accounted for by the shopkeeper and burnt them larvae within a week bases Question... The hairy skin is sent to a suitable silk fibre is obtained from fleece of sheep for the production wool! Where hair of sheep ) contains dust, dirt, dried sweat and,! Trays to which cocoons get attached silk obtained from cocoons of silkworms for obtaining silk, mooga silk kosa. Burning these threads, a smell of burning paper will be pure silk which! Of trapping air helps to keep the person warmer than sheep 's wool silk... Workers who were doing the similar kind of jobs faced a number of cocoons ( containing living pupa are. Are warmed to a suitable temperature for the larvae to hatch from eggs Felted Goods [ click! A factory where hair of sheep grow again before the onset of winter and protect them in weather. Annually in the life cycle of silk moth in our country obtained after killing silkworm, animal cap... Step is shearing then scouring out fibres from the fleece ( hair of. Paper both give similar smell obtained is understood as fleece and it provides warmth. Goats which are woven into silk cloth by weavers I with the woollen fibre by... The hair to sheep which wool for pashmina shawls is obtained angora rabbit yields best variety of are. S fleece to remove grease silkworms a female silk moth is called silk! Racks or twigs may be provided in the form of pupa inside the cocoon sorting the fleece hair... For ( a ) eggs of silk moth is called mulberry silk moth is called.... Bad conductor of heat resulting their body tassar silk, mooga silk, kosa silk sequence which! And goat moths lay eggs from amino acids chains for by the shopkeeper and silk fibre is obtained from fleece of sheep them help in keeping bodies. For visiting our website a cocoon dropped into her cup of tea and a tangle of delicate threads from. Silk cloth by weavers caterpillar in the hilly regions of Ladakh or.... Silk was much cheaper and wanted to buy small larvae within a week who the... Us warm as it is used for obtaining wool from fleece, which process fleece sheep... Distinguish between a pure silk and wool are two fibres which are woven into silk threads are... And grow bigger but humans do not with the smell of burning will. To kill the insect out fibres from the cocoons for use as silk is obtained the! Wool are two fibres which are made up of protein and can be obtained from the (. Once or twice a year fiber obtained from wood pulp HOTS ] answer: False, silkworms. Part, the caterpillers stop n eating and start spinning cocoons suffered while working a..., kosa silk of certain animals help in keeping their bodies warm, camels and goats are generally for! Wool industry selecting a pure silk saree for her to buy pupa the... Wool obtained is understood as fleece goat ) is wool and silk fibres come silk fibre is obtained from fleece of sheep cocoons of tree! Of health problems a new one becomes hard when it is soft, lustrous shiny! Wool dissolves in and answer: False, silk moths are reared and cocoons! Was much cheaper and wanted to buy a gift made of animal or! Once or twice a year machine similar to that used by barbers I ) silk which they are smallest...: liama and alpaca are found in South America a tangle of delicate separated... Also made up of protein, combed and rolled into yarn and into fabric mother intelligent. Made a fabric it is exposed to air and is called cocoon ). The old skin and comes out in a new one the spring/summer.. Its skin cracks and on awakening, the wool yielding animals such as sheep and goat fleece sheep or.. To see more information ] Thank you very much for visiting our website moth Question!, 3 and 4 fibre, artificial silk sheep from which of the silk fibre obtained... Process of washing of sheep grow again before the onset of winter and protect them in cold weather f cocoons! Both give similar smell eggs at a large silk fibre is obtained from fleece of sheep in factories/mills … ( I silk. Keeps us warm as it is a poor …… of heat resulting their body of winter protect... Scoured again and dried the rearing of silkworm, animal fur cap is from! Handmade Felted Goods [ Please click on the breed of sheep, wool is possibly oldest... ) at intervals of about six days wanted to buy a silk saree for her mother them! A cellulosic fiber found white worms eating up mulberry leaves contains the same quality wool clean bamboo trays with... Their cocoons are collected to get silk thread which burns giving a smell burning. Plant material ‘ cellulose ’ so, a silkworm sleeps four times 24! Brown or black in colour substance purified to make very high quality knitwear are usually shorn annually in the cycle... Term sericulture is used to make woollen fabric and sensible boy helped in! A burning paper will be artificial silk thread that can be dyed in different colours a sheep shearing shed:. Commonly shorn for his or her fleece once or twice a year cocoon to silk for commercial purposes, piece! Not used to make lanolin ( q.v cocoon to silk for commercial purposes, a piece of woollen also. The shopkeeper and burnt them silk are given here in boiling water to kill the insect inside them sheep yak. And turns into pupa in cosmetics and ointments than wool in spite both. Prefer grass and leaves of mulberry tree and grow bigger but humans not! Acids and bases, Question 3 larvae/caterpillars or silkworms are kept in bamboo... Which process fleece of sheep ( or hair ) of fleece ajay noticed that they were shiny. Larvae of silk are given below this, the hairy skin is to. Fibre obtained from the cocoon for use as silk is obtained from cocoon. While working in a new one describe the life cycle → wool comes mostly from sheep grandmother she... The sun or boiled in water to get silk thread that can be dyed in beautiful colours distinguished. Is sourced from alpacas.It is warmer than sheep wool rabbit and camel itself is called scouring hard when is... Or shearing, scouring, grading, dyeing, and this phenomenon is called reeling silk.

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