Science Class:-7, Chapter:- 4 Heat Notes, NCERT Solutions & Frequently Asked Questions
Science Class:-7, Chapter:- 4 Heat Notes, NCERT Solutions & Frequently Asked Questions -- Notes -- Woollen clothes are obtained from animal fibres. Woollen clothes are generally dark in colour and are worn in the winter season as they protect us from the cold environment. Cotton clothes are obtained from the plant fibres. The cotton clothes are generally light in colour and are worn in summer season so that we can feel cool. Hot and Cold We can understand if an object is hot or cold by the s...