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URL:https://www.learndesk.us/class/5862506851467264/synthetic-fibres-and-plastics-class-8-science?ref=outlook-calendar
SUMMARY:Synthetic Fibres and Plastics Class 8 Science
DTSTART;TZID=America/Los_Angeles:20260514T190000
DTEND;TZID=America/Los_Angeles:20260514T200000
LOCATION:https://www.learndesk.us/class/5862506851467264/synthetic-fibres-and-plastics-class-8-science?ref=outlook-calendar
DESCRIPTION: NCERT Questions:
Q.1: Explain why some fibers are called synthetic.
Q.2: Mark the correct answer: Rayon is different from synthetic fibers because
(a) It has a silk-like appearance(b) It is obtained from wood pulp(c) Its fibers can also be woven like those of natural fiber.
Q.3: Fill in the blanks:
(a) Synthetic fibres are also called _____________ or ________________ fibres.(b) Synthetic fibres are synthesised from raw material called ______________.(c) Like synthetic fibres, plastic is also a _____________ .
Q.4: Give examples that indicate that nylon fibers are very strong.
Q.5: Explain why plastic containers are favored for storing food
Q.6: Explain the differences between thermoplastics and thermosetting plastics.
Q.7: (a) Explain why the following is made of thermosetting plastics- Saucepan handles
Q.7: (b) Explain why the following is made of thermosetting plastics- Electric plugs/ switches/plugboards
Q.8: Categorise the materials of the following products into “can be...

https://www.learndesk.us/class/5862506851467264/synthetic-fibres-and-plastics-class-8-science?ref=outlook-calendar
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