Why do we wear dark coloured clothes in winter? Why do we wear light coloured clothes in summer? How do woollen clothes keep us warm during winter? [4 marks]
Why do we wear dark coloured clothes in winter? Why do we wear light coloured clothes in summer? How do woollen clothes keep us warm during winter? [4 marks]
Dark coloured clothes absorb more heat as compared to light coloured clothes. So we feel comfortable in dark coloured clothes in winter.
[1 mark]
We wear light coloured clothes in summer because they reflect most of the heat that falls on them.
[1 mark]
As wool is a very good insulator and a poor conductor of heat, woolen clothes keep the body warm and protect it from the cold winds. [0.5 marks]
Also, the air trapped between the woollen fibres prevents the flow of heat from the body to the cold surroundings. It also prevents the cold air from coming in contact with the body. [1.5 marks]
Dark coloured clothes absorb more heat as compared to light coloured clothes. So we feel comfortable in dark coloured clothes in winter.
[1 mark]
We wear light coloured clothes in summer because they reflect most of the heat that falls on them.
[1 mark]
As wool is a very good insulator and a poor conductor of heat, woolen clothes keep the body warm and protect it from the cold winds. [0.5 marks]
Also, the air trapped between the woollen fibres prevents the flow of heat from the body to the cold surroundings. It also prevents the cold air from coming in contact with the body. [1.5 marks]
