Class 6 - Science
Chapter 3 : Fibre to Fabric
Top Block 1
QUESTIONS FROM TEXTBOOK
Q.1. Classify the following fibres as natural or synthetic: nylon, wool, cotton, silk, polyester, jute.
Ans. Natural fibres: wool, cotton, jute, silk.
Synthetic fibres: nylon, polyester.
Q.2. State whether the following statements are ‘true’ or false’:
(a) Yam is made from fibres.
(b) Spinning is a process of making fibres.
(c) Jute is the outer covering of coconut.
(d) The process of removing seeds from cotton is called ginning.
(d) Weaving of yam makes a piece of fabric.
(e) Silk fibre is obtained from the stem of a plant.
(g) Polyester is a natural fibre.
Ans.
(a) True
(b) False
(c) False
(d) True
(e) True
(f) False
(g) False
Q.3. Fill in the blanks:
(a) Plant fibres are obtained from____________ and___________ .
(b) Animal fibres are___________ and___________ .
Ans.
(a) cotton plants, jute plants
(b) wool, silk
Q. 4. From which part of the plant cotton and jute are obtained?
Ans.
(i) Cotton – Cotton bolls (from the surface of cotton seeds) (fruit)
(ii) Jute – Stem
Q.5. Name two items that are made from coconut fibre.
Ans.
(i) Ropes
(ii) Mats
Q.6. Explain the process of making yam from fibre.
Ans. Yarns are made up of thin strands called fibres. The process of making yam from fibres is called spinning. In this process, a mass of cotton wool are drawn out and twisted. This brings the fibres together to form yarn.
EXTRA QUESTIONS :
I. VERY SHORT ANSWER TYPE QUESTIONS
Q.1. Name two varieties of cloth materials which are commonly used.
Ans. Cotton, silk/wool.
Q.2. What are fabrics?
Ans. Fabrics mean a woven material, textile or other materials resembling woven cloth.
Q.3. Name some fabrics in your surroundings.
Ans. Bed-sheets, blankets, curtains, table clothes, towels and dusters.
Q. 4. Name the thing which is used to make fabric.
Ans. Yarns.
Q.5. What are yarns made of?
Ans. Yarns are made up of thin strands called fibres.
Q.6. How many types of fibres are there? ,
Ans. There are two types of fibres:
(i) Natural fibres
(ii) Synthetic fibres
Q.7. Name two natural fibres.
Ans.
(i) Cotton
(ii) Jute
Q.8. Name two synthetic fibres.
Ans.
(i) Polyester
(ii) Nylon
Mddle block 1
Q.9. What material you use for making wicks for oil lamps?
Ans. Cotton wool.
Q.10. Where does cotton wool come from.?
Ans. Cotton wool comes from cotton bolls.
Q.11. What are fruits of cotton plants called?
Ans. Cotton bolls.
Q.12. What type of soil is used to grow cotton plants?
Ans. Black soil.
Q.13. Define ginning of cotton.
Ans. The process of separating fibres from the seeds of cotton is called ginning of cotton.
Q.14. What is jute?
Ans. Jute is a fibre obtained from the stem of a jute plant.
Q.15. Name the states where jute plants are mainly grown in India.
Ans. West Bengal, Bihar and Assam.
Q.16. What is spinning?
Ans. The process of making yarns from fibres is called spinning.
Q.17. Name two hand-operated devices used for spinning.
Ans.
(i) Takli
(ii) Charkha
Q.18. How are fabrics prepared?
Ans. Fabrics are prepared from the yarns by weaving or knitting.
Q. 19. Name the process used to prepare fabrics from yams.
Ans. The processes which used to prepare fabrics are: (i) Weaving and (ii) Knitting.
Q.20. What is weaving?
Ans. The process of arranging two sets of yarns together to make a fabric is called weaving.
Q.21. What is knitting?
Ans. The process in which a single yarn is used to make a piece of fabric is called knitting.
Q.22. Name two methods of knitting.
Ans.
(i) By hands
(ii) By machines
Q.23. Where were the cotton and flax plants cultivated in ancient Egypt?
Ans. Cotton and flax plants were cultivated near the river Nile in ancient Egypt.
Q.24. Name some modem fabrics formed by unstitched piece of fabric. .
Ans. Saree, dhoti, lungi and turban.
Q.25. How are natural fibres better than synthetic fibres?
Ans. The natural fibre absorbs sweat, gives cooling effect and comfort in any season.
Q.26. Are all fibres produced by plants?
Ans. No.
Q.27. Cotton on burning gives paper burning smell and cotton is obtained from plants. Is paper also obtained from plants?
Ans. Yes, paper is also obtained from plants.