Fibre to Fabric class 6 Science NCERT Solutions

Fibre to Fabric class 6 Science NCERT Solutions: Fibre to Fabric is the chapter 3 from class 6 Science NCERT. Here you'll get Fibre to Fabric class 6 Science/Fibre to Fabric class 6 Science NCERT Solutions.

Fibre to Fabric class 6 Science Summary

There is a variety of clothing material or fabric, such as, cotton, silk, wool and polyester. Fabrics are made from yarns, which in turn are made from fibres.

Fibres are either natural or synthetic. Cotton, wool, silk and jute are some natural fibres, while nylon and polyester are some examples of synthetic fibres.

Fibres like cotton and jute are obtained from plants. The process of making yarn from fibres is called spinning. Fabric from yarns is made by weaving and knitting.

Fibre to Fabric class 6 Science Notes

We wear clothes to protect ourselves against the weather such as strong sunlight, extreme cold, heat or rain. Before the invention of clothes, people covered their bodies with the skins of animals in cold weather or with leaves, barks, or grasses in warm weather.

Two fibres that are used to make clothes are cotton and wool. Two materials that are not fibres but are used for making clothes are leather and fur, which are derived from animals.

Different types of natural fibres obtained from plants and animals are.

Plants: Fibres that we obtain from a plant source. example: cotton, jute, coconut and flex.
Animals: Fibres that we obtain from an animal source. example: wool (from sheep, goat, camel), silk (from a silkworm).

Cotton fabrics are best worn in hot and humid conditions as these clothes absorb sweat and evaporates it thus, making the body cool.

Advantages of silk over cotton are

Silk is comparatively elegant and lustrous in comparison to cotton.
The surface of silk is much smoother than cotton.
Silk moisture permeability is 1.5 times more than cotton which means it can absorb or dissipate the gases released by humans.
Silk helps to regulate heat, in winters it retains heat to make the body warm and in summer releases heat and makes one feel cool.

Leather is not a natural fibre as it is obtained from animals. Leather is derived from tanning skins of animals. Therefore, it is not a fibre.

Wool is fluffy and it traps most of the air which enables wool to act as an insulator. Australia is the world's leading producer of wool today.

The process of making woollen clothing are

Shearing: The wool is removed from the sheep using special clippers in a process known as shearing.
Transportation: Post shearing, the wool is packed into bales and transported to the mills.
Combing and spinning: The wool is then combed by a combing machine and spun into fibre.
Knitting or weaving: The fibres are then knit or weaved into woollen clothing.

NCERT Solutions for Class 6 Science Fibre to Fabric Chapter 3

Q1. Classify the following fibres as natural or synthetic:

nylon, wool, cotton, silk, polyester, jute

Ans: i) Natural fibres: wool, cotton, jute, silk.

ii) Synthetic fibres: nylon, polyester.

Q2. State whether the following statements are true or false:

a) Yarn 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 seed from cotton is called ginning.

e) Weaving of yarn makes a piece of fabric.

f) 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

Q3. Fill in the blanks:

a) Plant fibres are obtained from_________ and ________ .

b) Animals fibres are __________ and ___________ .

Ans: a) Plant fibres are obtained from cotton plants and jute plants.

b) Animals fibres are wool and silk.

Q4. From which parts of the plant cotton and jute are obtained ?

Ans: Cotton fibres are obtained from the fruit of cotton plants. The fruit of a cotton plant is known as cotton bolls. Jute fibres are obtained from the stem of jute plants.

Q5. Name two items that are made from coconut fibre.

Ans: The two items that are made from coconut fibre are Ropes and Mats

Q6. Explain the process of making yarn from fibre.

Ans: The process of making yarn from fibre is called spinning. In this process, the fibres are first drawn out from their source and then twisted into yarn. This brings the fibres together to form yarn. Two devices used in spinning are takli and charkha.

Fibre to Fabric class 6 Science Extra Questions Answers

Q1. Which of these is not a natural fibre ?

(a) leather

(b) jute

(d) cotton

Ans: leather

Q2. Historians believe that cotton clothes were first worn in

(a) India.

(b) Egypt.

(d) Europe.

Ans: Egypt

Q3. Which of these is not a property of jute ?

(a) biodegradability

(b) durability

(d) strength

Ans: smoothness

Q4. Which of these is the leading producer of wool today ?

(a) Germany

(b) Australia

(d) USA

Ans: Australia

Q5. Which of these is not a fibre ?

(a) jute

(b) nylon

(d) wool

Ans: leather

Fibre to Fabric class 6 Science Important Questions Answers

Q1. Name two fibres made from chemicals obtained from petroleum. What are such fibres called ?

Ans: Nylon and polyester are the two chemicals that are obtained from petroleum. Nylon and polyester are called synthetic fibres.

Q2. How is silk obtained ?

Ans: Silk is obtained from the cocoon of silk worms. The silk worms feed on mulberry leaves and each worm spins a continuous thread, which is nearly 800 meters in length, to make a cocoon. The cocoons are collected and boiled in water to kill the silkworms. The cocoons are then unwrapped to get silk fibre, which is then woven into fabric.

Q3. What advantages does cotton have over synthetic cloth ?

Ans: Cotton cloth is soft and it lets air flow through it. Cotton cloth can breathe freely. This is not the case with synthetic cloth such as nylon. Further, cotton clothes can absorb sweat, which synthetic clothes cannot. The absorbed sweat then evaporates from the clothing and cools down the wearer in hot and humid weather.

Q4. Why does jute grow so well in the Sunderbans area ?

Ans: Jute grows best in warm, humid climates receiving plenty of rainfall. Jute also requires alluvial soil receiving silt from annual flooding. These conditions are best available in the Sunderbans region. Hence, jute grows well in the Sunderbans region.