NCERT Solution of Class 6 Science Chapter 3

Class 6 Science Chapter 3 Textbook Questions Solved

Q 1- Classify the following fibres as natural or synthetic: nylon, wool, cotton, silk, polyester, jute.

Ans: Natural fibres: wool, cotton, jute, silk.

         Synthetic fibres: nylon, polyester.

Q 2- State whether the following statements are ‘true’ or false’:

                (a) Yam is made from fibres.

                Ans :      True

                (b) Spinning is a process of making fibres.

                Ans :      False

                (c) Jute is the outer covering of coconut.

                Ans :      False

                (d) The process of removing seeds from cotton is called ginning.

                Ans :      True

                (d) Weaving of yam makes a piece of fabric.

                Ans :      True

                (e) Silk fibre is obtained from the stem of a plant.

                Ans :      False

                (g) Polyester is a natural fibre.

                Ans :      False

Q 3- Fill in the blanks:

                (a) Plant fibres are obtained from____________ and___________ .

                (b) Animal fibres are___________ and___________ .

Ans : (a) cotton plants, jute plants                            (b) wool, silk

Q 4- From which part of the plant cotton and jute are obtained?

Ans :      (i) Cotton – Cotton bolls (from the surface of cotton seeds) (fruit)

                (ii) Jute – Stem

Q 5- Name two items that are made from coconut fibre. 

Ans:       (i)Ropes                              (ii)Mats

Q 6- Explain the process of making yam from fibre.

Ans:    Yarns are made up of thin strands called fibres. The process of making yam from fibres is called spinning. In this process, a mass of cotton wool are drawn out and twisted. This brings the fibres together to form yarn.