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प्रश्न
Complete the crossword given below with the help of clues.
Across
- Substance used as synthetic wool. (7)
- A plastic used for making containers and carry bags. (9)
- Substance made up of large number of smaller molecules. (7)
- Another name for this compound is artificial silk. (5)
Down
5. A type of fibre obtained naturally from cocoon. (4)
6. A synthetic fibre classified as polyester. (8)
7. A polymer used for making ropes. (5)
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उत्तर
Across
- Acrylic
- Polythene
- Polymer
- Rayon
Down
5. Silk
6. Terylene
7. Nylon
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संबंधित प्रश्न
Give two examples of fibres.
Classify the following fibre as natural or synthetic:
polyester
Spinning is a process of making fibres.
A natural fibre is called ______.
Which of these is a synthetic fiber?
Match items in List A with the items of list B.
| List A | List B |
| (a) nylon | (i) non-stick coating |
| (b) PET | (ii) electric switches |
| (c) rayon | (iii) parachutes |
| (d) thermosetting plastics | (iv) polyester |
| (e) teflon | (v) artificial silk |
Hair trap a lot of ______, which is a poor ______ of heat.
The following is an answer given by Boojho to a question asked by his teacher - “Cotton, wool, silk and jute are classified as natural fibres whereas nylon and polyester are classified as synthetic fibres”.
Can you tell what question the teacher has asked?
Describe the two main processes of making fabric from yarn.
Complete the given analogy.
Coir fibre : ______ :: Cotton fibre : Cotton Plant
