Question

the cocoons are carried to the top of the mound because
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Answer 1

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1. Introduction

Overview

Objectives

2. Key Concepts

Animal Fibres - Wool and silk

3. Experiments and Experiences

Distinguish between artificial silk and natural silk.

4. Check your understanding

Quiz

5. Did You Know?

Interesting Facts

Classroom Activities

Finish Lesson Help

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Chapter 3 - Fibre to Fabric

Everything Is Everything - II

Animal Fibres - Wool and silk

Wool

Wool comes from sheep, goat, yak and some other animals. These wool-yielding animals bear hair on their body because hair keeps these animals warm and wool is derived from these hairy fibres.

The hairy skin of the sheep has two types of fibres that form its fleece: (i) the coarse beard hair, and (ii) the fine soft under-hair close to the skin.

Some breeds of sheeppossess only fine under-hair. Theirparents are specially chosen to give birthto sheep which have only soft under hair.This process of selecting parentsfor obtaining special characters in theiroffspring, such as soft under hair insheep, is termed ‘selective breeding’.

Animals That Yield Wool

The fleece of sheep is not the only source of wool, though wool commonly available in the market is sheep wool.

Yak wool is common in Tibet and Ladakh and Angorawool is obtained from angora goats, found in hilly regions such as Jammu and Kashmir.

Wool is also obtained from goat hair. The under fur of Kashmiri goat is soft and It is woven into fine shawls called Pashmina shawls.

The fur (hair) on the body of camels is also used as wool. Llamaand Alpaca, found in South America,also yield wool.

From Fibres To Wool

For obtaining wool, sheep are reared.Their hair is cut and processed into wool.