Chapter 3 - Fibre to Fabrics
Question 1: You must be familiar with the following nursery rhymes:
(i) ‘Baa baa black sheep, have you any wool.’
(ii) ‘Mary had a little lamb, whose fleece was white as snow.’
Answer the following:
(a) Which parts of the black sheep have wool?
(b) What is meant by the white fleece of the lamb?
Answer:
a) Wool is obtained from hairy fibres of the sheep.
b) White fleece of the lamb refers to the white colour of their fur.
Question 2: The silkworm is (a) a caterpillar, (b) a larva. Choose the correct option.
(i) a
(ii) b
(iii) both a and b
(iv) neither a nor b
Answer: (iii) both a and b
Question 3: Which of the following does not yield wool?
(i) Yak
(ii) Camel
(iii) Goat
(iv) Woolly dog
Answer: (iv) Woolly dog
Question 4:What is meant by the following terms? (i) Rearing (ii) Shearing (iii) Sericulture
Answer:
• Rearing: The process of keeping, feeding, breeding and medical care of useful animals is called rearing.
• Shearing: The process of removal of fleece of the sheep along with a thin layer of skin from its body its body is called shearing.
• Sericulture: The rearing of silkworm for obtaining silk is called sericulture.
Question 5: Given below is a sequence of steps in the processing of wool. Which are the missing steps? Add them.
Shearing, __________, sorting, __________, __________, __________.
Answer: Shearing, Scouring, Sorting, Picking of burrs, Dyeing of fibres, making of yarn.
Question 6: Make sketches of the two stages in the life history of the silk moth which are directly related to the production of silk.
Answer:
![Question 6 figure](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEh6W7g9oijJJcYfn_u4oxT9TqoP4J6ffgBf8sJ_Uxm0J2VHVrxPXmK2Tc30c0Xs_PXemb6OZXdrhs6Opu1N20-mv8VYSt4-0f0jAA2Z9LhvOQemyori4qVbTnGvXRJ-Xo6NyHnlUxNJmuutgpHqmPiIxLPhHquPQNuo-m6tyfrrG_v_eP77wR_WPpg6Bw/s16000/FIG%20(1).png)
Question 7: Out of the following, which are the two terms related to silk production?
Sericulture, Floriculture, Moriculture, Apiculture and Silviculture
Hints: (i) Silk production involves cultivation of mulberry leaves and rearing silkworms.
(ii) Scientific name of mulberry is Morus Alba
Answer: Sericulture and Moriculture
Question 8: Match the words of Column I with those given in Column II:
![Question 8 figure](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjD76RPqFoXH6ugbuBPX_RDkut0xP5Q_Mh8OjrKU9v88VnIoGlxU6M4vUkxuthMhp0YdcWVHKoUYLdy-cL7n04mN2unAzF3xv-nG-QushNuIRBLcMaIQHyqFnK0RCUSXFD4DBD3a7EWqZMCNtCmkq6cQI_H7YQRVNviOwqYKhglCam1yy-q2nDyvrYHfQ/s16000/FIG%20(2).png)
Answer:
![Question 8 figure answer](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgmefSFG_8nd54sKvynajCfZrjj3ZkR3kV3osjTs-0QpQhROZ0v5J4DopOsZy-s0DWvj46SfaMcj6vUqvlAJyYvk5lJ3Pco0fHWvKGDGF8KLZwbH0qf1gH-JYZoqepCQyjxDNEoBUt7Olxu3UPJbNPSo5GrXl2BOM_LkS7AThVxVkkSCS9to1_MItKd2A/s16000/FIG%20(3).png)
Question 9: Given below is a crossword puzzle based on this lesson. Use hints to fill in the blank spaces with letters that complete the words.
Down
1: Thorough washing
2: Animal fibre
3: Animal fibre
Across
1: Keeps warm
2: Its leaves are eaten by silkworms
3: Hatches from egg of moth
![Question 9](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiuqdDdOAXeG_C5G_TEtyezusTP_cDDEKkvmOdOfEh-NkIYe5tjZ02sGFXBgmet4j3xQTQ1FbztcsY_MMcoQdNvC7juJsOZRPfUwEeh6Dy2nTePAf30PuzJ2QRg87keJSrBIAxtPdKI-W_NT0ojk_zIdTUvhNMPpG7TPQUU4mlYo3_FVKRJ0X-VQqX9vg/s16000/FIG.jpg)
Answer:
![Question 9 answer](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhwFivikLkMzqMeRyDd_rgod4EUnK10zV5IDgF9okp9EKcKBNBNkUEwIWDtc3sietOboul25mbXG975s1hz7nkuD0-slwQKZzaiVK6qg9SDyVn3ANGYzs01jAS8Bkctfzkt8YOqhqgBu3U5VYcUHB-VSHIxXJr2PyRvSizo0qoJNSMRPwfNQIj-LicydQ/s16000/FIG%201.jpg)
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