What is shoddy wool?

Important Questions on Fibres to Fabric

EASY

7th CBSE

IMPORTANT

S. Chand's SCIENCE For Class VII>Chapter 3 - Fibres to Fabric>Test Your Learning Outcome>Q 5

Why do we wash wool before drawing fibre into yarn? 

EASY

7th CBSE

IMPORTANT

S. Chand's SCIENCE For Class VII>Chapter 3 - Fibres to Fabric>Test Your Learning Outcome>Q 6

Name some common varieties of woollen clothes. 

MEDIUM

7th CBSE

IMPORTANT

S. Chand's SCIENCE For Class VII>Chapter 3 - Fibres to Fabric>Test Your Learning Outcome>Q 1

Name the two proteins which constitute the silk fibre?

EASY

7th CBSE

IMPORTANT

S. Chand's SCIENCE For Class VII>Chapter 3 - Fibres to Fabric>Test Your Learning Outcome>Q 2

Name the insect (moth) that yields silk?

MEDIUM

7th CBSE

IMPORTANT

S. Chand's SCIENCE For Class VII>Chapter 3 - Fibres to Fabric>Test Your Learning Outcome>Q 3

Moths are similar to butterflies then how do we differentiate them?

EASY

7th CBSE

IMPORTANT

S. Chand's SCIENCE For Class VII>Chapter 3 - Fibres to Fabric>Test Your Learning Outcome>Q 4

Name four stages which through the silkworm moth passes during its lifecycle?

MEDIUM

7th CBSE

IMPORTANT

S. Chand's SCIENCE For Class VII>Chapter 3 - Fibres to Fabric>Test Your Learning Outcome>Q 5

What is the importance of the cocoon (pupa) stage in the lifecycle of silkworm?

MEDIUM

7th CBSE

IMPORTANT

S. Chand's SCIENCE For Class VII>Chapter 3 - Fibres to Fabric>Test Your Learning Outcome>Q 6

Is the following statement correct? Say 'Yes' or 'No'.
Silk worm feeds on mulberry leaves.