Silk

Q. Which of the following fibres is also known as artificial silk ?

1. Nylon
2. Rayon
3. Polyester
4. Spandex

Q.

What is rayon

Q.

Synthetic fibres are made from chemicals in industries.

1. True

2. False

Q. What do u mean by a cocoon?

Q.

Cotton is obtained from ______ of cotton plants and jute is obtained from ______ of jute plants.

1. roots, stem

2. fruits, stem

3. roots, leaves

4. stem, fruits

Q.

Silk fibre is drawn from cocoon of __.

Q.

Which of the following is a semi synthetic fibre?

1. Nylon

2. Terrycot

3. Terylene

4. both b and c

Q. Cotton wool is obtained from cocoon

1. False
2. True

Q. Which amongst the following is a cheaper fibre that can be preferred as a substitute for silk?

1. Rayon
2. Nylon
3. Cotton
4. Jute

Q.

Which of the following are obtained from living things?

1. Air
2. Soil
3. Cement
4. Silk

Q. Wool is obtained from the:

1. fleece of sheep
2. stem of jute plant
3. seeds of cotton plant
4. cocoons of silkworms

Q.

What is the source of silk fibre? [1 MARK]

Q.

Which of the following statements about Rayon is correct?

1. Neither First synthetic fibre nor Artificial silk

2. Both First synthetic fibre and Artificial silk

3. First synthetic fibre

4. Artificial silk

Q. Which of the following statements are incorrect?

1. Fabric is obtained from fibres.
2. Jute fibre is obtained from sheep.
3. Silk fibre is obtained from the stem of the plant.
4. Silk fibre is obtained from silkworms.

Q. Which of the following fibres is also known as artificial silk ?

1. Nylon
2. Rayon
3. Polyester
4. Spandex

Q.

Boojho went to a cloth shop. There he found a fabric which was smooth to touch, had vibrant colour and shine. The fabric could be

1. cotton

2. wool

3. silk

4. jute.

Q. Match the following words in column A with those in column B:​

	column A		column B
a.	Clothing​	1.	toothpaste, cosmetics​
b.	Green revolution​	2.	nylon, wool​
c.	Building materials​	3.	agriculture ​
d.	Commodities of daily use​	4.	mortar, cement​

Q. Which of the following fibres is also called artificial silk?

1. Acrylic
2. Rayon
3. Nylon
4. Polyester

Q. Statement 1: Jute is used to make containers for young saplings that can be planted directly.
Statement 2: Jute cannot be easily decomposed by microorganisms. .

1. Both the statements are true. Statement 2 is not the correct explanation of statement 1.
2. Statement 1 is true but, statement 2 is false.
3. Both the statements are true. Statement 2 is the correct explanation of statement 1.
4. Both the statements are false.

Q. Renu wants to present her friend a gift made of animal fibre. Which one of the following will she select?

1. Woolen shawls
2. Silk kurtis
3. Nylon scarf
4. Jute bag

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

Q.

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

Q. Why does cocoon look like a ball?

Q.

Explain how jute is obtained from the jute plant.

Q. Identify the correct statements from the following:

$\bullet$ Weaving and knitting are the two methods of converting yarn into fabric.

$\bullet$ Rayon is a natural fibre prepared from a natural raw material.​

$\bullet$ Jute plants are harvested after flowering stage to obtain fibres.

$\bullet$Cotton plants grow in cold climates.

Q.

7. Sate whether the sentences are true or false. Correct and rewrite the wrong sentences.

i. Silk is obtained from an insect.

1. True
2. False

Q. Fill in the blanks:
A. Plant fibres are obtained from _______ and_______.​
B. Animals fibres are _______ and _______.​

Q. Solve the following crossword puzzle:

figure

Across
3. Fibre obtained from Angora goat
5. Removal of fleece
6. A camel found in South America

Down
1. A silky case spun by the caterpillar around its body
2. A group of sheep
4. A person who removes wool

Q. A cotton shirt, before it reaches you, completes a long journey. Elaborate this journey starting from cotton bolls.

Q.

From which part of cotton plant, cotton fibers are obtained?