Olympiad – Class VII – Science - Bio - Fibre to Fabric

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Question - 1

Which word complete the given correlation?
Silk: Cocoon, Wool: _________ 

  • A Hair of rabbit
  • B Cotton plant
  • C Fleece of sheep
  • D Jute of hemp

Question - 2

Which of the following materials is/are used for clothing in ancient times?

  • A Animal Skins
  • B Leaves
  • C Vines
  • D All of these

Question - 3

Clothes does not protect us from which of the following condition?

  • A Heat
  • B Cold
  • C Blood pressure
  • D Dust and germs

Question - 4

Silk fibres are obtained from which of the following organisms?

  • A Silk flies
  • B Silk animals
  • C Silk sheep
  • D Silkworms

Question - 5

Woollen clothes are preferred to be worn on which of the following days?

  • A Hot day
  • B Rainy day
  • C Cold day
  • D Sunny day

Question - 6

Silk fibres are obtained from silkworms. Silk fibre is obtained at which of the following stage of its life cycle?

  • A
  • B
  • C
  • D

Question - 7

Woollen fibres are obtained from which of the following things?

  • A Wool worms.
  • B Carbon compounds.
  • C Fleece of sheep.
  • D Cotton plants.

Question - 8

Which of the following is used to protect silk and woollen clothes?

  • A Medicines
  • B Salt solution
  • C Benzene solution
  • D Naphthalene balls

Question - 9

Given below are two groups of materials used to make dress articles.

Group I Group II
Flax Cotton
Jute Wool
  Silk

Which of the following does not belong to the group formed by the others?

  • A Leather
  • B Flax
  • C Cotton
  • D Silk

Question - 10

Which of the following is the function of hair?

  • A Traps a lot of air
  • B Protects internal organs
  • C Keeps body cool
  • D Gives beauty