|
Describe an activity to show that thermoplastic is a poor conductor of electricity
|
|
1
|
22214
|
August 9, 2020
|
|
Write the names of four types of synthetic fibres and write their uses also
|
|
1
|
1430
|
June 21, 2019
|
|
Distinguish between Thermoplastic and thermosetting plastic Natural fibres and synthetic fibres
|
|
0
|
9927
|
March 22, 2018
|
|
‘Manufacturing synthetic fibres is actually helping conservation of forests’
|
|
0
|
1420
|
March 22, 2018
|
|
Write an activity to show that synthetic fibres are stronger than the cotton fibres
|
|
0
|
8480
|
March 22, 2018
|
|
Despite being very useful it is advised to restrict the use of plastic. Why is it so? Can you suggest some methods to limit its consumption?
|
|
0
|
7698
|
March 22, 2018
|
|
Write the importance of synthetic polymers in our life
|
|
0
|
10943
|
March 22, 2018
|
|
Explain why the plastic containers are favoured for storing food
|
|
0
|
1008
|
March 22, 2018
|
|
Give examples which indicate that nylon fibres are very strong
|
|
0
|
16350
|
March 22, 2018
|
|
‘Avoid plastics as far as possible’
|
|
0
|
2682
|
March 22, 2018
|
|
Should the handle and bristles of a tooth brush be made of the same material?Explain your answer
|
|
0
|
9126
|
March 22, 2018
|
|
Give examples to show that plastics are non-corrosive in nature
|
|
0
|
987
|
March 22, 2018
|
|
Rana wants to buy shirts for summer
|
|
0
|
3318
|
March 22, 2018
|
|
Explain why the following are made of the thermosetting plastics
|
|
0
|
783
|
March 22, 2018
|
|
Categorise the materials of the following products into ‘can be recycled’ and ‘cannot be recycled’:
|
|
0
|
1526
|
March 22, 2018
|
|
Explain why some fibres are called synthetic
|
|
0
|
1139
|
March 22, 2018
|
|
PVC (polyvinyl chloride) is a thermoplastic and is used for making toys, chappals, etc
|
|
0
|
2784
|
March 22, 2018
|
|
A lady went to the market to buy a blanket. The shopkeeper showed her blankets made of acrylic fibres as well as made of wool. She preferred to buy an acrylic blanket. Can you guess why?
|
|
0
|
5210
|
March 22, 2018
|
|
Rohit took with him some nylon ropes, when he was going for rock climbing. Can you tell why he selected nylon ropes instead of ropes made of cotton or jute?
|
|
0
|
1744
|
March 22, 2018
|