Sunday, 12 April 2020

Class.6-Science-Chapter.3-FIBRE TO FABRIC


Class.6-Science-Chapter.3-FIBRE TO FABRIC
Exercise Questions
1. Classify the following fibers as natural or synthetic:
nylon, wool, cotton, silk, polyester, jute
Ans:
Natural: Wool, Cotton, Silk, Jute
Synthetic: Nylon, Polyester
2. State whether the following statements are true or false:
a) Yarn is made from fibers.
b) Spinning is a process of making fibers.
c) Jute is the outer covering of coconut.
d) The process of removing seed from cotton is called ginning.
e) Weaving of yarn makes a piece of fabric.
f) Silk fiber is obtained from the stem of a plant.
g) Polyester is a natural fiber.
Ans:
  1. True
  2. False
  3. False
  4. True
  5. True
  6. False
  7. False
3. Fill in the blanks:
a) Plant fibers are obtained from_________ and ________ .
b) Animals fibers are __________ and ___________ .
Ans:
a) Plant fibers are obtained from cotton and jute .
b) Animals fibers are silk and wool .
4. From which parts of the plant cotton and jute are obtained?
Ans:
Cotton is obtained from the fruit part of plant and Jute is obtained from the stem of the plant.
5. Name two items that are made from coconut fiber.
Ans:
Gunny bags and Rope
6. Explain the process of making yarn from fiber.
Ans:
Yarn can be made from fiber by the process called Spinning. From the mass of cotton, fibers are drawn and twisted which brings together the fibers to form a yarn

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