NCERT - 8 - Science :: Synthetic Fibres and Plastics
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[Contributor - Anu Nived]
Objective: To teach the students about types of synthetic fibres and plastic
Subtopics to be covered:
- Characteristics of plastic
- 4R concept
Learning Outcome:
- Students know about Rayon, Nylon etc
- They know about bio degradable and non biodegradable plastics
- They also know how plastic affects our environment and are aware of 4R principle
[Contributor - Kripa S]
http://epathshala.nic.in/wp-content/doc/book/flipbook/ClassVIIIFlipbook/0855-Vigyan/Chapter-3/index.html (NCERT Hindi Medium)
http://epathshala.nic.in/wp-content/doc/book/flipbook/ClassVIIIFlipbook/0854-Science/Chapter-3/index.html (NCERT English Medium)
https://drive.google.com/open?id=0BzNF2YyqQxJ-NktlNVMxRmRXbWc (JEPC Board) (Hindi Medium)
[Contributor - Divya Goil, Kripa S]
(Source - Bunk school)
https://www.youtube.com/watch?v=RUCqwYc91Bw (English -natural vs man made fibres)
(Source -Thoisoi2 - Chemical Experiments!)
https://www.youtube.com/watch?v=KlpLlUGu7zo (English - How polyester is useful)
(Source - unacademy)
https://unacademy.com/lesson/synthetic-fibres-and-plastics-in-hindi/JFA17I3E (Hindi - Synthetic fibres and Plastics)
(Source - The Sidd)
https://www.youtube.com/watch?v=heFjUACDfu4 (Hindi - Synthetic Fibres and Plastics - Part 1)
https://www.youtube.com/watch?v=hXDM85YYIDE (Hindi - Synthetic Fibres and Plastics - Part 2)
https://www.youtube.com/watch?v=mgTtmjlKK9I (Hindi - Synthetic Fibres and Plastics- Part 3)
[Contributor - Anu Nived]
http://images.wisegeek.com/nylon-rope.jpg (Nylon rope), http://3.imimg.com/data3/GH/SS/MY-253013/kids-plastic-chairs-500x500.jpg (plastic)
https://ae01.alicdn.com/kf/HTB1Yed_KFXXXXaaXFXXq6xXFXXXu/2014-New-3-Lace-font-b-Eyelet-b-font-Flower-kids-hair-accessories-font-b-Fabric.jpg (Rayon flowers)
https://i.ytimg.com/vi/YIrKW6jXjdM/maxresdefault.jpg (4R concept)
[Contributor - Arshea Bimal]
1. Ask around and find clothes or other household objects which contain:
a) Rayon
b) Nylon
c) Polyester
Also, find their properties, uses and differences between them.
2. 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.
3. Look around you. Name some articles made from plastic that you can see.
4.List some articles that are biodegradable and non biodegradable.
5. Debate: The children may be given an option to role play as manufacturers of synthetic fabrics or those of fabrics from natural sources.
They can then debate on the topic ‘My Fabric is Superior’.
[Contributor - Fathima Nazar]
| Term | Transliterated Term | Translated Term | |
| Acrylic | अक्रिलिक | प्रक्रियाओं द्वारा उत्पादित कपड़ा या प्लास्टिक का एक प्रकार | |
| Artificial Silk | आर्टिफिशल सिल्क | कृत्रिम रेशम | |
| Nylon | नायलॉन | कपड़े बनाने के लिए प्रयुक्त एक कृत्रिम पदार्थ | |
| Polyester | पॉलीएस्टर | एक प्रकार के कृत्रिम कपडे | |
| Polymer | पॉलीमर | कई छोटे अणुओं से बना प्राकृतिक या कृत्रिम पदार्थ | |
| Polythene | पॉलिथीन | बैग बनाने के लिए इस्तेमाल एक नरम प्लास्टिक | |
| Rayon | रेयॉन | सेलूलोज़ से बने चिकनी, चमकदार सामग्री | |
| Synthetic Fibre | सिंथेटिक फाइबर | संश्लेषित रेशे | |
| Terylene | टेरिलीन | पॉलिएस्टर से बना एक कृत्रिम कपड़ा फाइबर | |
| Thermoplastics | थर्मोप्लास्टिक्स | थर्माप्लास्टिक | |
| Thermosetting Plastics | ोसेट्टिंग प्लास्टिक | थर्मोसेटिंग प्लास्टिक |
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