Science - Class 6 / Grade 6 (Chapter 01 - 10)
- Chapter 3 - Fibre to Fabric - 4
Chapter 3 - Fibre to Fabric - 4
NCERT Solutions for Class 6 Science Chapter 3 Fibre to Fabric, Download NCERT Solutions for Class 6 Science, CBSE Class 6 Science Solutions, Learn 6th grade science, Grade 6 Science, CBSE Class 6 Science Chapter 3 - Fibre to Fabric, Practice Worksheets for Class 6 Science Chapter 3 Fibre to Fabric, Question And answer for Class 6 Chapter 3 Science Fibre to Fabric, Science - Class 6 (CBSE/NCERT) - Chapter 3 - Fibre to Fabric - Questions and Answers/Notes/Worksheets – Cont. – 4 Tags: Class VI - Fibre to Fabric, Grade 6 –Science- CBSE / NCERT – Fibre to Fabric, Question and Answers free worksheet PDF on fibre to fabric for 6th class, Practice page and important question and Extra question on Fibre to fabric for sixth standard, why synthetic fibre is used for making swimwear? Write the steps of making cotton fabric from fibre. Write the burning test for cotton, silk, wool, jute and nylon. Write two advantages of natural fibre and synthetic fibre. Differentiate between natural fibres and synthetic fibres. Why do we wear woolen clothes in winter?Fibre to Fabric
Q45. Why synthetic fibre is used for making swimwear?
Ans. Swimsuits are made of synthetic fibre such as Polyester, Nylon etc. These materials absorb less water and therefore dry very quickly. They are flexible and conform to the body.
Q46. Write the steps of making cotton fabric from fibre.
Ans. Steps:
1. Cotton fibres are removed from cotton bolls.
2. Seeds are separated from cotton fibres.
3. Thin strands of cotton fibre are drawn from cotton wool and twisted to form a yarn.
4. The yarn is then woven to form cotton fabric.
Q47. Write the burning test for cotton, silk, wool, jute and nylon.
Ans.
Fibre
Odour
Observation
cotton
burning paper
burns
silk
burning hair
only shrink
wool
burning hair
only shrink
jute
burning paper
burns
nylon
burning plastic
melt and shrink
Q48. Write two advantages of natural fibre and synthetic fibre.
Ans. Natural Fibre
1. Natural fibres absorb more water.
2. They are biodegradable.
Synthetic Fibre
1. They are durable.
2. They are wrinkle free. They are used to make spacesuits, swimsuits and fire resistant suits.
Q49. Write two disadvantages of natural fibre and synthetic fibre.
Ans. Natural Fibre
1. Natural fibre are less durable
2. Natural fibres are costlier.
Synthetic Fibre
1. They are non-biodegradable.
2. They do not absorb sweat.
Q50. Differentiate between natural fibres and synthetic fibres.
Ans.
Natural Fiber
Synthetic Fiber
1. The fibers which we get from nature are called natural fiber.
1. The fibers which are developed by man are called synthetic fiber.
2. They are less durable.
2. They are more durable.
3. They are called environment friendly.
3. They are not environment friendly.
4. It is expensive.
4. It is cheaper.
5. The fabric made from natural fiber is comfortable and good for health.
5. Synthetic fiber is not comfortable and not good for health.
6. Examples: wool, cotton and silk
6. Examples: polyester, nylon and acrylic
Q51. Why do we wear woolen clothes in winter?
Ans. Woolen fibers trap the air in between. This air prevents the flow of heat from our body to the cold surroundings. That’s why we wear woolen clothes to keep ourselves warm in winter.
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