While doing an activity in class, the teacher asked Paheli to
handover a transluscent material. Which among the following
materials will Paheli pick and give her teacher?
(a) Glass tumbler (b) Mirror
(c) Muslin cloth (d) Aluminium foil
Boojho found a bag containing the following materials
(i) Mirror
(ii) Paper stained with oil
(iii) Magnet
(iv) Glass spectacles
Help Boojho in finding out the material(s) which is/are opaque.
(a) (i) only (b) (iv) only
(c) (i) and (iii) (d) (ii) and (iv)
You are provided with the following materials
(i) Magnifying glass (ii) Mirror
(iii) Stainless steel plate (iv) Glass tumbler
Which of the above materials will you identify as transparent?
(a) (i) and (ii) (b) (i) and (iii)
(c) (i) and (iv) (d) (iii) and (iv)
Pick one material from the following which is completely soluble
in water.
(a) Chalk powder (b) Tea leaves
(c) Glucose (d) Saw dust
An iron nail is kept in each of the following liquids. In which
case would it lose its shine and appear dull?
(a) Mustard oil (b) Soft drink
(c) Coconut oil (d) Kerosene
A cotton shirt, before it reaches you, completes a long journey.
Elaborate this journey starting from cotton bolls.
Match the terms given in Column I with the statements given
in Column II.
Column I Column II
(a) Weaving (i) A single yarn used to make a fabric
(b) Knitting (ii) Combing of cotton fibres to remove seeds
(c) Spinning (iii) Yarns are made from these thin strands
(d) Ginning (iv) These are spun from fibres and then used to make fabrics
(e) Fibre (v) Process of arranging two sets of yarns together to make a fabric
(f) Yarn (vi) Process of making yarn from fibres
Fill in the blanks to complete the life story of cotton fibre.
My parents, cotton plants were grown in _______soil and _____-
climate. The plants bore fruits called ______ . I, the cotton fibre
was separated from seeds in the cotton bolls by the process of
______. Other cotton fibres and myself were made into yarn by
the process of ______. The yarn was _______to give beautiful
colours and then_______to get cotton fabric.
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