Home
About
FAQs
System Requirements
In the news
Workshops
Training
Training Calendar
Request for Training
Training Status
Registration
For Teachers
For Students
For Schools
Contact us
Login
Languages
English
हिंदी
മലയാളം
मराठी
ಕನ್ನಡ
you are here->
home
->
Class 6
->
Difference between Natural and Man made Fibres
Difference between Natural and Man made Fibres
Theory
Theory
Procedure
Animation
Simulator
Video
Viva Voce
Resources
Feedback
1)
Identify the natural fibre
Nylon
Polyester
Acrylic
Silk
2)
Identify the artificial fibre
Cotton
Wool
Silk
Acetate
3)
Identify the plant-based fibre
Jute
Nylon
Wool
Acrylic
4)
Which fibre is made from hair of sheep?
Polyester
Silk
Wool
Jute
5)
What happens to cotton on burning?
Forms a black hollow bead that can be crushed to black powder
Forms a hard cream or black colored bead that cannot be crushed
Produces a fine gray ash
It melts
6)
What happens to nylon on burning?
Smells like burning wood or paper
Forms a hard cream or black colored bead that cannot be crushed
Forms a black hollow bead that can be crushed to black powder
Produces a fine gray ash
7)
Identify the fibre that melts on burning?
Rayon
Polyester
Silk
Cotton
8)
Which fibre is used as a substitute for silk?
Nylon
Acrylic
Rayon
Polyester
9)
What kind of residue is left when you burn cotton fibre?
A hard cream or black coloured bead that cannot be crushed
A fine gray ash
A black hollow bead that can be crushed to black powder
No residue
10)
Which of the following produces a black smoke on burning?
Nylon
Polyester
Cotton
Rayon