In the winter we use woollen clothes.
Woolen clothes keep us warm in winter because.
In this video i have explained how woollen jersey do project us from cold and keep us warm and why other fabric clothes cant do this.
C prevent air from contacting the body.
Also the air trapped between the woollen fibres prevents the flow of heat from the body to the cold surroundings.
This is ur ans.
This air prevents the flow of heat from our body to the cold surroundings.
As wool is a very good insulator and a poor conductor of heat woollen clothes keep the body warm and protect it from the cold winds.
A supply heat.
Wool absorbs radiant heat from outer objects.
D prevent the heat of the body from escaping.
Woolen clothes keeps people warm in winters because the air gets trapped inside.
Woollen clothes keep us warm during winter because wool is a poor conductor of heat and it has air trapped in between the fibres.
Woolen colthes are more warmer than cotton clothes because wool are thich and trap the air between the layers and do not let it escape.
Because woolen clothes are warm and they allowed air to trapped in between the fibres and cotton clothes do not have space which air can be trapped.
People have been wearing woolen clothing for years in the winter months.
Wool increases the temperature of the body.
There is air trapped in between the fibres of the woollen clothes.
Cotton clothes do not have a thich layer of cloth it just a single layer and thus it cannot trap the air between it.
Wool is a poor conductor of heat.
The wool fibres trap the air in between them.
Wool is a poor conductor of heat due to which woollen clothes stop the flow of heat from our warm body to the cold surroundings.
How do woollen clothes keep us warm in the winter.
Discussion in cbse class 7 science help started by g mahesh nov 7 2013.
Clothes keep us warm in winter because they.