The silk fibres separate out. Cotton and paper both are carbohydrates. Question 10. From Sheep to Wool – Step by Step Process for Wool Production. of silk moth. Fibre to Fabric Q1. How do the hair of certain animals help in keeping their bodies warm? Fig. Now-a-days scouring is done by machines. Write a caption for each of the figures given as figure (a-d). Silk fibres come from of silk …….. [NCERT Exemplar] (d) rolling of sheep fibre into yarn poor, Question 15. Wool is obtained from the fleece or hair of sheep. (a) cocoon Answer: [NCERT Exemplar] (a) Goat (b) Llama (c) Alpaca (d) Moth Answer: (d) Moth. 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). Answer: There are some other sources for obtaining wool. Question 1. Name the process of taking out silk fibres from the cocoon for use as silk. A pile of cocoon is used for obtaining silk fibre. Rampur bushair and Bakharwal are the breeds of sheep. → Wool is obtained from the fleece (hair) of fleece sheep or yak. It is produced in most parts of the planet. (iv) Cashmere is an extremely soft wool obtained from Cashmere sheep. (d) Leather jacket Sorter’s disease is an occupational hazard. 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 long woollen fibres are spun (or twisted) into thick yarn called wool which is used for knitting sweaters, etc. From which parts of plants cotton and jute are obtained? He advised his father to take care of their health and told him about the occupational hazards. For obtaining pure silk, we have to rear silk moth, their larvae to get pupa. (c) washing of sheep fibre to remove grease. In second saree, second thread which burnt with the smell of burning cotton and paper because cotton and paper both are carbohydrates and on burning they give similar smell. ... Shearing is the process in which fleece of sheep with thin layer is removed. [HOTS] The hair of the sheep are shaved off by using a saving machine similar to that used by barbers. Question 14. (b) rearing of silkworm, Question 9. Natural silk is an animal fibre. A wholesale woollen fibre dealer gets the woollen fibre of different textures sorted for various purposes. Answer: Fur and leather are animal products which are obtained from the skin of animals by killing them. Answer: Silkworms secrete fibre made of Answer: From Cocoon to Silk (b) Silkworm Therefore, the wool obtained is understood as fleece. Step VI Answer: They warm them to a suitable temperature for the larvae to hatch from egg. in which part of India, yak wool is common? (b) separating hair of different textures. Development of Cocoon. The process of taking out fibres from the cocoon for use as silk is known as reeling the silk. (g) Fibres are taken out from the cocoon. So, it is cheap. (c) After 25 to 30 days, the caterpillers stop N eating and start spinning cocoons. Artificial silk is obtained from wood pulp and it is made up of modified plant material ‘cellulose’. False, yak hair are used to make woollen fabric. Define the statement. Answer: The covering of silk fibres inside which the caterpillar covers itself is called cocoon. Wool yielding animals bear …….. on their body. (a) Neha’s mother took a thread of natural silk fabric and another thread of artificial silk fabric and burn them separately. Ajay is worried about his father’s health. (a) Goat Silk (78% protein) is much stiffer than wool in spite of both being proteins made from amino acids chains. Question 3. Question 5. Explain in brief. 4. Silk, wool, Question 2. Mooga is the strongest variety of wool. 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