Question

Activity :
Take two cloth pieces of the same
size, roughly half a metre square
each. One of these should be from
natural fibre. The other could be a
synthetic fibre. You can take help
of your parents in selecting these
pieces. Soak the pieces in different
mugs each containing the same
amount of water. Take the pieces
out of the containers after five
minutes and spread them in the sun
for a few minutes. Compare the
volume of the water remaining in
each container.
Do synthetic fabrics soak less/more
water than the natural fabrics? Do they
take less/more time to dry?
What does this activity tell you about
the characteristics of the synthetic fabrics?
Find out from your parents about the
durability, cost and maintenance of these
fabrics, compared to the natural fabrics.​

Answer 1

Answer:

Synthetic fibres actually are water resistant so they absorb less water and dry up quickly...

Answer 2

On comparing the volume of water remaining in each container after the activity, we observe that the container containing the synthetic cloth had more water compared to the container having the natural fiber cloth.

• This happens because natural fibers are known to absorb more water compared to synthetic fibers.
• Synthetic fibers compared to natural fibers also take less time to dry.
• The man-made polymers used to create fabrics are synthetic fibers. When numerous tiny units are chemically fused together, polymers are created.
• Nylon and Rayon are examples of synthetic fibers.
• These fibers are easy to maintain and cheaper than clothes made of natural fibers.
• They are also easily available and can be washed as well as dried quicker than natural fibers.
• They also last very long and do not wrinkle as much as natural fibers.

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