NCERT Solutions for Class 7 Science<\/a> Chapter 3 Fibre to Fabric Questions and Answers are prepared by our highly skilled subject experts to help students while preparing for their exams.<\/p>\nFibre to Fabric NCERT Solutions for Class 7 Science Chapter 3<\/h2>\nClass 7 Science Chapter 3 Fibre to Fabric Textbook Exercise Questions and Answers<\/h3>\n
Question 1.
\nYou must be familiar with the following nursery rhymes:
\ni. \u2018Baa baa black sheep, have you any wool.\u2019
\nii. \u2018Marry had a little lamb, whose fleece was white as snow\u2019.
\nAnswer the following:
\na. Which parts of the black sheep have wool?
\nb. What is meant by the white fleece of the lamb?
\nAnswer:
\na. The fleece (hair) of the black sheep has wool.
\nb. White fleece of the lamb means the white coloured hair on the skin of the sheep.<\/p>\n
Question 2.
\nThe silkworm is: (i) a caterpillar, (ii) a larva.
\nChoose the correct option:
\na. (i)
\nb. (ii)
\nc. Both (i) and (ii)
\nd. Neither (i) nor (ii)
\nAnswer:
\nc. Both (i) and (ii)<\/p>\n
Question 3.
\nWhich of the following does not yield wool?
\na. Yak
\nb. Camel
\nc. Goat
\nd. Woolly dog
\nAnswer:
\nd. Woolly dog<\/p>\n
Question 4.
\nWhat is meant by the following terms?
\na. Rearing
\nb. Shearing
\nc. Sericulture
\nAnswer:
\na. Rearing: The process of keeping, feeding, breeding and taking medical care of useful animals is called rearing of animals. These animals produce one or more useful products for human use.<\/p>\n
b. Shearing: The fleece (hair) of sheep is shaved off along with the thin layer of skin. This is similar to shaving beards or hair and this process is called shearing.<\/p>\n
c. Sericulture: The rearing of silkworms for obtaining silk is called sericulture.<\/p>\n
<\/p>\n
Question 5.
\nGiven below is a sequence of steps in the processing of wool. Which are the missing steps? Add them.
\nShearing, …………., sorting, …………., …………., ………….
\nAnswer:
\nShearing, Scouring, sorting, removing burrs, dying and rolling into yarns.<\/p>\n
Question 6.
\nMake sketches of the stages in the life history of the silk moth which are directly related to the production of silk.
\nAnswer:
\n<\/p>\n
Question 7.
\nOut of the following, which are the two terms related to silk production? Sericulture, Floriculture, Moriculture, Apiculture and Silviculture.
\nHints:
\na. Silk production involves cultivation of mulberry leaves and rearing silkworms.
\nb. Scientific name of mulberry is Morus alba.
\nAnswer:
\na. Sericulture
\nb. Moriculture.<\/p>\n
Question 8.
\nMatch the words of column I with those given in column II.<\/p>\n