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.
Consider the following food chain:
Grass \( \rightarrow \) Grasshopper \( \rightarrow \) Frog \( \rightarrow \) Snake \( \rightarrow \) Eagle
If the amount of energy available at third trophic level is 50 kJ, the available energy at the producer level was:
- 0.5 kJ
- 5 kJ
- 500 kJ
- 5000 kJ
View Solution
2.
Define a precipitation reaction. Give its example and also express the reaction that occurs in the form of a balanced chemical equation.
View Solution
3.
Which one of the following is not an excretory product in plants?
- \(CO_2\)
- Starch
- Resins and gums
- Dead cells
View Solution
4.
The water of crystallization is present in:
(i) Bleaching Powder
(ii) Plaster of Paris
(iii) Washing Soda
(iv) Baking Soda
- (ii) and (iv)
- (ii) and (iii)
- (i) and (iii)
- (i) and (iv)
View Solution
5.
Juice of tamarind turns blue litmus to red. It is because of the presence of a chemical compound called:
- Acetic acid
- Methanoic acid
- Oxalic acid
- Tartaric acid
View Solution
6.
Give two methods used to grow rose and jasmine plants by vegetative propagation.
View Solution

View All

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NCERT Solutions for Class 7 Science Chapter 5 : Acids, Bases and Salts

NCERT Solutions for Class 7 Science Chapter 9: Soil

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.
Consider the following food chain:
Grass \( \rightarrow \) Grasshopper \( \rightarrow \) Frog \( \rightarrow \) Snake \( \rightarrow \) Eagle
If the amount of energy available at third trophic level is 50 kJ, the available energy at the producer level was:

2.
Define a precipitation reaction. Give its example and also express the reaction that occurs in the form of a balanced chemical equation.

3.
Which one of the following is not an excretory product in plants?

4.
The water of crystallization is present in:
(i) Bleaching Powder
(ii) Plaster of Paris
(iii) Washing Soda
(iv) Baking Soda

5.
Juice of tamarind turns blue litmus to red. It is because of the presence of a chemical compound called:

6.
Give two methods used to grow rose and jasmine plants by vegetative propagation.

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.Consider the following food chain: Grass \( \rightarrow \) Grasshopper \( \rightarrow \) Frog \( \rightarrow \) Snake \( \rightarrow \) Eagle If the amount of energy available at third trophic level is 50 kJ, the available energy at the producer level was:

2.Define a precipitation reaction. Give its example and also express the reaction that occurs in the form of a balanced chemical equation.

3.Which one of the following is not an excretory product in plants?

4.The water of crystallization is present in: (i) Bleaching Powder (ii) Plaster of Paris (iii) Washing Soda (iv) Baking Soda

5.Juice of tamarind turns blue litmus to red. It is because of the presence of a chemical compound called:

6.Give two methods used to grow rose and jasmine plants by vegetative propagation.

Comments

SUBSCRIBE TO OUR NEWS LETTER

1.
Consider the following food chain:
Grass \( \rightarrow \) Grasshopper \( \rightarrow \) Frog \( \rightarrow \) Snake \( \rightarrow \) Eagle
If the amount of energy available at third trophic level is 50 kJ, the available energy at the producer level was:

2.
Define a precipitation reaction. Give its example and also express the reaction that occurs in the form of a balanced chemical equation.

3.
Which one of the following is not an excretory product in plants?

4.
The water of crystallization is present in:
(i) Bleaching Powder
(ii) Plaster of Paris
(iii) Washing Soda
(iv) Baking Soda

5.
Juice of tamarind turns blue litmus to red. It is because of the presence of a chemical compound called:

6.
Give two methods used to grow rose and jasmine plants by vegetative propagation.