Why do we wear woollen clothes in winter?

Important Questions on Worksheet 1 (Chapters 1-5)

HARD

7th CBSE

IMPORTANT

Frank Experience Science>Chapter NA - Worksheet 1 (Chapters 1-5)>Worksheet 1 (Chapters 1-5)>Q 4

How is acid rain caused?

EASY

7th CBSE

IMPORTANT

Frank Experience Science>Chapter NA - Worksheet 1 (Chapters 1-5)>Worksheet 1 (Chapters 1-5)>Q 5

Why convection cannot take place in a solid?

EASY

7th CBSE

IMPORTANT

Frank Experience Science>Chapter NA - Worksheet 1 (Chapters 1-5)>Worksheet 1 (Chapters 1-5)>Q 6

Why are cooking utensils provided with handles made of plastic (or wood)?