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Q1 Classify the following fibres as natural or synthetic: nylon, wool, cotton, silk, polyester, jute Ans: Natural fibres: Wool, Cotton, Silk, Jute.
Wool: We obtain wool from sheep and other animals. A fibre that is obtained from the animals are called natural fibres. Cotton: We obtain cotton from the cotton plants. Cotton is a soft fibre that grows in a ball. As we obtain it from the plants; is a natural fibre. Silk: We obtain silk from the silkworm. The best silk is obtained from the cocoon. So we can say that it is a natural fibre. Jute: Jute is obtained from the stem of the jute plant. That is why it is also a natural fibre.
Synthetic fibres: Nylon, Polyester
Nylon: It is man- made fibre. It is a thermoplastic silky material generally used for making rope and thread. Polyester: It is the derived form of coal, petroleum and water that’s why it is called synthetic fibre.
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
This statement is true because as we know that the process of making yarn from the fibre is called spinning.
(b) False
Because, spinning is the process of making yarn from fibre.
(c) False
This statement is false because the outer covering of coconut is called coir.
(d) True
This statement is true because the re-cleaning or removing of seeds from the cotton balls is known as ginning.
(e) True
This statement is true because weaving is the process of arranging the two sets of yarn together to make a fabric.
(f) False
It is false because silk fibre is obtained from the cocoon.
(g) False
Polyester is derived from the coal and petroleum. It is a synthetic fibre.
Q3 Fill in the blanks: a) Plant fibres are obtained from_________ and ________ . b) Animals fibres are __________ and ___________ . Ans: (a) Cotton, Jute
Because cotton is obtained from the cotton plants and Jute is obtained from the stem of the jute plant.
(b) Wool, Silk
Because wool is obtained from the outer covering of sheep and many other animals. And, silk is obtained from the silkworm.
Q4 From which parts of the plant cotton and jute are obtained? Ans: Cotton is obtained from the fruit of the cotton plant. Cotton plant as grows up, cotton balls starts to appear as the covering. As they grow up, cotton balls are collected from the plants. The process of removing of seeds from the cotton balls is known as ginning.
Jute is obtained from the stem of the jute plant. At the flowering stage, the stems of the harvested plant immersed in the water till they rot. Then finally the fibre from the stem is collected by hand.
Q5 Name two items that are made from coconut fibre. Ans: Ropes, mats, bags, brushes are the items that are made from coconut fibre (eventually from the coconut). The husk or outer covering of coconut is known as coconut fibre which is also known as natural fibre.
Q6 Explain the process of making yarn from fibre. Ans: The process of making yarn from fibre:
The process of making yarn from fibre is known as spinning. In this process, from a mass of cotton wool, fibres are drawn out and twisted. Then the fibres are arranged in two sets to make yarn. This whole process is called spinning. This process can be done by hands or as well as by machines.
Chapter 3 Fibre to Fabric
- As like in food, there is a lot of variety in clothing material like nylon, silk, wool, cotton, polyester, jute etc.
- The fibres that we obtain from plants and animals are called natural fibres like cotton, jute, silk, wool etc.
- Man- made fibres are called synthetic fibres like nylon, polyester, acrylic etc.
- The process of making yarn from fibres is called spinning and is done by machines.
- Weaving is the process in which two sets of yarn are arranged together to make a fabric.
- Socks, sweater are made by knitting process.
Download pdf of NCERT Solutions for Class Science Chapter 3 Fibre to Fabric
Download pdf of NCERT Examplar with Solutions for Class Science Chapter 3 Fibre to Fabric
Exercise 1 ( Page No. : 26 )
Popular Questions of Class 6 Science
- Q:-
Draw (a) a leaf, (b) a taproot and (c) a flower, you have studied for Table 7.3.
- Q:-
You are given an iron strip. How will you make it into a magnet?
- Q:-
Name two foods each rich in:
(a) Fats
(b) Starch
(c) Dietary fibre
(d) Protein - Q:-
A thick coating of a paste of Plaster of Paris (POP) is applied over the bandage on a fractured bone. It becomes hard on drying to keep the fractured bone immobilised. Can the change in POP be reversed?
- Q:-
Tick (√) the statements that are correct.
(a) By eating rice alone, we can fulfill nutritional requirement of our body. ( )
(b) Deficiency diseases can be prevented by eating a balanced diet. ( )
(c) Balanced diet for the body should contain a variety of food items. ( )
(d) Meat alone is sufficient to provide all nutrients to the body. ( ) - Q:-
List all items known to you that float on water. Check and see if they will float on an oil or kerosene.
- Q:-
Name the part of the plant which produces its food. Name this process.
- Q:-
Why can a pace or a footstep not be used as a standard unit of length?
- Q:-
Given below are the names of some objects and materials:
Water, basket ball, orange, sugar, globe, apple and earthen pitcher Group them as:
(a) Round shaped and other shapes
(b) Eatables and non eatables - Q:-
Name two items that are made from coconut fibre.
Recently Viewed Questions of Class 6 Science
- Q:-
Indicate true (T) and false (F) among the following sentences.
(a) The movement and locomotion of all animals is exactly the same. ( )
(b) The cartilages are harder than bones. ( )
(c) The finger bones do not have joints. ( )
(d) The fore arm has two bones. ( )
(e) Cockroaches have an outer skeleton. ( ) - Q:-
Name the part of the plant which produces its food. Name this process.
- Q:-
In a completely dark room, if you hold up a mirror in front of you, will you see a reflection of yourself in the mirror?
- Q:-
Tick (√) the statements that are correct.
(a) By eating rice alone, we can fulfill nutritional requirement of our body. ( )
(b) Deficiency diseases can be prevented by eating a balanced diet. ( )
(c) Balanced diet for the body should contain a variety of food items. ( )
(d) Meat alone is sufficient to provide all nutrients to the body. ( ) - Q:-
Why can a pace or a footstep not be used as a standard unit of length?
- Q:-
Fill up the blanks
(a) The method of separating seeds of paddy from its stalks is called ___________.
(b) When milk, cooled after boiling, is poured onto a piece of cloth the cream (malai) is left behind on it. This process of separating cream from milk is an example of ___________.
(c) Salt is obtained from seawater by the process of ___________.
(d) Impurities settled at the bottom when muddy water was kept overnight in a bucket. The clear water was then poured off from the top. The process of separation used in this example is called ___________. - Q:-
A bag of cement lying in the open gets wet due to rain during the night. The next day the sun shines brightly. Do you think the changes, which have occurred in the cement, could be reversed?
- Q:-
Complete the drawing shown in Fig 12.14 to indicate where the free ends of the two wires should be joined to make the bulb glow.
- Q:-
How will you show that air is dissolved in water?
- Q:-
Do you find that all living beings need the same kind of food?
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