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Wool from Animals

Which of thes...

Question

Which of these fabrics traps air the most−silk, wool or cotton? What is the effect of this on the porperty of the fabric made from this fibre?

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Solution

Wool fabric can trap most of the air. This property of the fabric helps it to prevent heat from escaping. Because air is a bad conductor of heat, the body heat cannot escape. Thus, the fabric helps in keeping our body warm and protecting us from the harsh cold.

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Q. Natural fabrics, such as cotton, wool and silk are made of plant or animal-based fibres.

Which fabric traps most of the air

Q. Which of these fabrics will you choose to wear in hot and humid conditions?
(a) cotton
(b) silk
(c) nylon
(d) wool

If these fabrics are soaked in same amount of water then pls tell the order in which the water in the fabrics will evaporate completely:-

Nylon, Polyester, Silk, Wool, Cotton and Jute.

Which one will dry first and which one will dry last?

Q. Use the clues given to complete this crossword.
CLUES
Across
1. cotton fibre without the seed
4. using needles to make fabric from wool
5. In summer, we like to wear only clothes made from this material.
7. long, shiny plant fibre, made into ropes and gunny bags
8. man made material
9. fine thread made from fibre
11. type of soil on which cotton grows well
14. Indian spinning wheel
15. another name for hairy covering of animals
18. process of changing fibre into yarn
20. process of separating cotton fibre from seed
23. long piece of cloth wound around the head by Indian men
24. cleaning, straightening and untwisting cotton fibres
26. soft, expensive, natural fabric
Down
1. cloth is woven on these
2. a common synthetic material
3. another word for fine threads
4. special name given to handspun, handwoven cotton cloth in India
5. fibre obtained from Kashmir goat
6. fibres from plants and animals
10. process of pulling apart raw cotton fibres and cleaning them
11. seed pods of cotton plant
12. animal source of angora wool
13. process of changing yarn to fabric
16. animal home made of fine silk threads
17. name for handmade cloth
19. unstitched cloth worn by Indian women
20. animal whose hairy coat gives us a very soft wool
21. parts of jute plants used to get fibres
22. fibre from husk of the coconut
25. machine used to separate cotton fibres from seeds
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