Fibre to Fabric Class 7 Questions and Answers – Fibre to Fabric Class 7 Notes
Fibre to Fabric Class 7 Questions and Answers for students of Cbse / Icse Board
Q1 : You must be familiar with the following nursery rhymes:
- ‘Baa baa black sheep, have you any wool.’
- ‘Mary had a little lamb, whose fleece was white as snow.’
Answer the following:
- Which parts of the black sheep have wool?
- What is meant by the white fleece of the lamb?
- Wool is obtained from the hair of the sheep.
- White fleece of the lamb refers to the white coloured hair of the lamb.
Q2 : The silkworm is (a) a caterpillar, (b) a larva. Choose the correct option.
- both a and b
- neither a nor b
both a and b
Q3 : Which of the following does not yield wool?
- Woolly dog
Answer : Woolly dog
Q4 : What is meant by the following terms?
(i) Rearing (ii) Shearing (iii) Sericulture
- Rearing is the process of raising, feeding, reproducing, and caring for useful animals.
- Shearing is the process of removing the sheep’s hair as well as a thin layer of skin.
- Sericulture is the practice of raising silkworms for the purpose of producing silk.
Q5 : Given below is a sequence of steps in the processing of wool. Which are the missing steps? Add them.
Shearing, __________, sorting, __________, __________, __________
- picking of burrs,
- dying of fibres,
- making of yarn
Q7:Out of the following, which are the two terms related to silk production?
Sericulture, floriculture, moriculture, apiculture and silviculture
Hints: Silk production involves cultivation of mulberry leaves and rearing silkworms.
- Scientific name of mulberry is Morus alba.
Answer : Sericulture and moriculture
Q8 : Match the words of Column I with those given in Column II
|Column I||Column II|
|(i) Scouring||(a) Yields silk fibres|
|(ii) Mulberry leaves||(b) Wool yielding animal|
|(iii) Yak||(c) Food of silk worm|
|(iv) Cocoon||(d) Reeling|
|(e) Cleaning sheared skin|
Answers :- 1 – e , 2 – c , 3 – b , 4 – a
Class 7 Science Fiber to Fabric Extra Questions
Q. How many types of fibers are there?
There are 2 types of fibers
- Natural fibers
- Manmade fibers
Q. What is natural fibers?
Natural fibers are obtained from plants and animals; such as jute, cotton, wool, silk, etc. Natural fibers can be classified into two types: Plant fiber and Animal fiber.
Q. What is manmade fibers?