Clothes We Wear
Collect pieces of three different kinds of fabrics. Observe them and fill in the
blanks.
Fabric
How does it feel?
Does it stretch?
Can you see through it?
A
B.
C
Now, with and adult's help stitch the pieces together and make a place-knot to keep
on your
table.
Answers
Visit a nearby tailoring shop. Collect cuttings of fabrics leftover after stitching. Feel and touch each piece of fabric. Now, try to label some of the fabrics as cotton, silk, wool or synthetic after asking for help from the tailor. Do you wonder what these different fabrics are made of? When you look at any fabric, it seems a continuous piece. Now, look at it closely. What do you notice (Fig. 3.2)?
Fig.3.2 Enlarged view of a piece of fabric
Activity 2
Select a piece of cotton fabric you labelled in Activity 1. Now, try to find a loose thread or yarn at one of the edges and pull it out (Fig. 3.3). If no loose
Fig. 3.3 Pulling a thread from a fabric
yarns are visible, you can gently pull one out with a pin or a needle.
We find that a fabric is made up of yarns arranged together. What are these yarns made of?
3.2 FIBRE
Activity 2
Take out a yarn from a piece of cotton fabric. Place this piece of yarn on the table. Now, press one end of the yarn with your thumb. Scratch the other end of the yarn along its length with your nail as shown in Fig. 3.4. Do you find that at this end, the yarn splits up into thin strands (Fig. 3.5)?
Fig 3.4 Splitting the yarn into thin strands
Fig. 3.5 Yarn split up into thin strands
You might have observed something similar when you try to thread a needle. Many a time, the end of the thread is separated into a few thin strands. This makes it difficult to pass the thread through the eye of the needle. The thin strands of thread that we see, are made up of still thinner strands called fibres.
Fabrics are made up of yarns and yarns are further made up of fibres. Where do these fibres come from?
The fibres of some fabrics such as cotton, jute, silk and wool are obtained from plants and animals. These are called natural fibres. Cotton and jute are examples of fibres obtained from plants. Wool and silk fibres are obtained from animals. Wool is obtained from the fleece of sheep or goat. It is also obtained from the hair of rabbits, yak and camels. Silk fibre is drawn from the cocoon of silkworm.
For thousands of years natural fibres were the only ones available for making fabrics. In the last hundred years or so, fibres are also made from chemical
substances, which are not obtained from plant or animal sources. These are called synthetic fibres. Some examples of synthetic fibres are polyester, nylon and acrylic.
Answer:
factors Applications of the concept presentation
Explanation: