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NCERT Solutions for Class 7 Science Chapter 3 Fibre to Fabric

NCERT Solutions for Class 7 Science Chapter 3 Fibre to Fabric are part of NCERT Solutions for Class 7 Science. Here we have given NCERT Solutions for Class 7 Science Chapter 3 Fibre to Fabric.

Board CBSE
Textbook NCERT
Class Class 7
Subject Science
Chapter Chapter 3
Chapter Name Fibre to Fabric
Number of Questions Solved 9
Category NCERT Solutions

NCERT Solutions for Class 7 Science Chapter 3 Fibre to Fabric

Question 1.
You must be familiar with the following nursery rhymes:

  1.  ‘Baa baa black sheep, have you any wool.
  2. ‘Mary had a little lamb, whose fleece was white as snow

(a) Which parts of the black sheep have wool?
(b) What is meant by the white fleece of the lamb?
Solution:
(a) Mainly the abdomen and back of the sheep have wool.
(b) White fleece refers to the white hair of lamb that is used to make wool.

Question 2.
The silkworm is
(a) a caterpillar
(b) a larva
Choose the correct option:

  1. a
  2. b
  3. both a and b
  4. neither a nor b

Solution:
1. a caterpillar.

Question 3.
Which of the following does not yield wool?

  1. Yak
  2. Camel
  3. Goat
  4. Woolly dog

Solution:
4.  Woolly dog.

Question 4.
What is meant by the following terms?

  1. Rearing
  2. Shearing
  3. Sericulture

Solution:

  1. Rearing: Rearing of animals means “taking care of economically useful animals by managing their breeding, feeding, medical care, etc., for obtaining one or more of their product useful for human beings”, e.g., apiculture, sericulture.
  2. Shearing: The process of removing the fleece of the sheep along with a thin layer of skin is called shearing.
  3. Sericulture: The rearing of silkworms 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, …………, …………, ………….
Solution:
Scouring, picking out of burrs, colouring, rolling.

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.
Solution:
NCERT Solutions for Class 7 Science Chapter 3 Fibre to Fabric image 1

Question 7.
Out of the following, which are the two terms related to silk production? Sericulture, floriculture, moriculture, apiculture and silvicultrue.
Hints:

  1. Silk production involves the cultivation of mulberry leaves and reàring silkworms
  2. The scientific name of mulberry is Morus alba.

Solution:
Sericulture and moriculture.

Question 8.
Match the words of Column I with those given in Column II:
 Column I

  1. Scouring
  2. Mulberry leaves
  3. Yak
  4. Cocoon

Column II
(a) Yields silk fibers
(b) Wool yielding animal
(c) Food of silkworm
(d) Reeling
(e) Cleaning sheared skin.

Solution:
(l)-(e)
(2)-(c)
(3)-(b)
(4)-(a); (d)

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 (D)
1: Thorough washing
2: Animal fiber
3: Long thread-like structure
Across (A)
1: Keeps warm
2: Its leaves are eaten by silkworms
3: Hatches from the egg of a moth
NCERT Solutions for Class 7 Science Chapter 3 Fibre to Fabric image 2
Solution:
NCERT Solutions for Class 7 Science Chapter 3 Fibre to Fabric image 3

NCERT Solutions for Class 7 Science

  • Chapter 1 Nutrition in Plants
  • Chapter 2 Nutrition in Animals
  • Chapter 3 Fibre to Fabric
  • Chapter 4 Heat
  • Chapter 5 Acids, Bases and Salts
  • Chapter 6 Physical and Chemical Changes
  • Chapter 7 Weather, Climate and Adaptations of Animals to Climate
  • Chapter 8 Winds, Storms and Cyclones
  • Chapter 9 Soil
  • Chapter 10 Respiration in Organisms
  • Chapter 11 Transportation in Animals and Plants
  • Chapter 12 Reproduction in Plants
  • Chapter 13 Motion and Time
  • Chapter 14 Electric Current and its Effects
  • Chapter 15 Light
  • Chapter 16 Water A Precious Resource
  • Chapter 17 Forests: Our Lifeline
  • Chapter 18 Wastewater Story

We hope the NCERT Solutions for Class 7 Science Chapter 3 Fibre to Fabric help you. If you have any query regarding NCERT Solutions for Class 7 Science Chapter 3 Fibre to Fabric, drop a comment below and we will get back to you at the earliest.

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