NCERT Solutions for Class 7 Science Chapter 3: Fibre to Fabric

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NCERT Solutions for Class 7 Science Chapter 3 Fibre to Fabric are provided in this article. The important topics that are included in this chapter are:

Wool
Silk

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NCERT Solutions for Class 7 Science Chapter 3

NCERT Solutions for Class 7 Science Chapter 3 Fibre to Fabric are given below:

NCERT Solution

Class 7 Science Chapter 3 Fibre to Fabric: Important Topics

Fibres are thin, long, flexible, and hair or thread-like structures. The fibres are usually obtained from two main sources- Plants and Animals. These fibers are called Natural Fibres. Cotton, wool, and silk are examples of Natural Fibres.

Wool

Wool is referred to as the textile fibre obtained from sheep and other animals, which includes cashmere and mohair from goats, qiviut from muskoxen, hide and fur clothing from bison, angora from rabbits, and other types of wool from camelids.

Silk

Silk is a natural protein fibre, some forms of which can be woven into textiles. The protein fibre of silk is formed mainly of fibroin, which is produced by certain insect larvae to form cocoons. The best-known silk is obtained from the cocoons of the larvae of the mulberry silkworm Bombyx mori reared in captivity.

Chapter Related Links:

MCQs on fibre to fabric	MCQs on animal kingdom	Variety in Fabrics
Yarn to Fabric	History of Clothing Material	Animal Fibre
Silkworm	Spinning of cotton yarn	Synthetic Fibre
Fibrous Materials Uses	Jute	Plant Fibers

Class 7 Science Additional Resources:

CBSE Class 7 Science NCERT Textbook	CBSE Class 7 Science Sample Paper	NCERT Solutions

CBSE X Related Questions

1.
When an element 'X' reacts with water, it starts floating. Identify the element 'X':
- Potassium
- Calcium
- Sodium
- Iron
View Solution
2.
The reasons for excessive generation of wastes are:
(i) Use and throw policy.
(ii) Increased availability of packaged food.
(iii) Increased construction wastes.
(iv) Non-sorting of dry and wet wastes
- (i), (iii) and (iv)
- (i), (ii) and (iii)
- (i), (ii), (iii) and (iv)
- (ii), (iii) and (iv)
View Solution
3.
(a) Study the given electric circuit in which 2 A electric current is flowing between points X and Y.

(i) Using the battery, key, voltmeter and ammeter in this given electric circuit, redraw a circuit diagram in which 2 \(\Omega\) and 4 \(\Omega\) resistors are connected between X and Y in parallel combination.
(ii) Circuit drawn by you, in which resistors are connected in parallel combination, calculate the electric current flowing through 4 \(\Omega\) resistor.
View Solution
4.
Briefly mention the steps in double-circulation through human heart.
View Solution
5.
In human beings, the implantation of fertilised egg takes place in which part of female reproductive system?
- Oviduct
- Cervix
- Uterus
- Vagina
View Solution
6.
How many bulbs of resistance \( 8 \ \Omega \) each should be connected in parallel combination to draw a current of \( 2 \text{ A} \) from a battery of \( 4 \text{ V} \) ?
View Solution

View All

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NCERT Solutions for Class 7 Science Chapter 3: Fibre to Fabric

NCERT Solutions for Class 7 Science Chapter 3

Class 7 Science Chapter 3 Fibre to Fabric: Important Topics

Wool

Silk

CBSE X Related Questions

1.
When an element 'X' reacts with water, it starts floating. Identify the element 'X':

2.
The reasons for excessive generation of wastes are:
(i) Use and throw policy.
(ii) Increased availability of packaged food.
(iii) Increased construction wastes.
(iv) Non-sorting of dry and wet wastes

4.
Briefly mention the steps in double-circulation through human heart.

5.
In human beings, the implantation of fertilised egg takes place in which part of female reproductive system?

6.
How many bulbs of resistance \( 8 \ \Omega \) each should be connected in parallel combination to draw a current of \( 2 \text{ A} \) from a battery of \( 4 \text{ V} \) ?

Comments

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NCERT Solutions for Class 7 Science Chapter 3: Fibre to Fabric

NCERT Solutions for Class 7 Science Chapter 3

Class 7 Science Chapter 3 Fibre to Fabric: Important Topics

Wool

Silk

CBSE X Related Questions

1.When an element 'X' reacts with water, it starts floating. Identify the element 'X':

2.The reasons for excessive generation of wastes are: (i) Use and throw policy. (ii) Increased availability of packaged food. (iii) Increased construction wastes. (iv) Non-sorting of dry and wet wastes

4.Briefly mention the steps in double-circulation through human heart.

5.In human beings, the implantation of fertilised egg takes place in which part of female reproductive system?

6.How many bulbs of resistance \( 8 \ \Omega \) each should be connected in parallel combination to draw a current of \( 2 \text{ A} \) from a battery of \( 4 \text{ V} \) ?

Comments

SUBSCRIBE TO OUR NEWS LETTER

1.
When an element 'X' reacts with water, it starts floating. Identify the element 'X':

2.
The reasons for excessive generation of wastes are:
(i) Use and throw policy.
(ii) Increased availability of packaged food.
(iii) Increased construction wastes.
(iv) Non-sorting of dry and wet wastes

4.
Briefly mention the steps in double-circulation through human heart.

5.
In human beings, the implantation of fertilised egg takes place in which part of female reproductive system?

6.
How many bulbs of resistance \( 8 \ \Omega \) each should be connected in parallel combination to draw a current of \( 2 \text{ A} \) from a battery of \( 4 \text{ V} \) ?